REM Script for getting undocumented init.ora
REM
COLUMN parameter FORMAT a37
COLUMN description FORMAT a30 WORD_WRAPPED
COLUMN "Session Value" FORMAT a10
COLUMN "Instance Value" FORMAT a10
SET LINES 100
SET PAGES 0
SPOOL _hidden_ora_params.txt
SELECT
a.ksppinm "Parameter",
a.ksppdesc "Description",
b.ksppstvl "Session Value",
c.ksppstvl "Instance Value"
FROM
x$ksppi a,
x$ksppcv b,
x$ksppsv c
WHERE
a.indx = b.indx
AND a.indx = c.indx
AND a.ksppinm LIKE '/_%' escape '/'
/
SPOOL OFF
SET LINES 80 PAGES 20
CLEAR COLUMNS
MySQL Experts | Performance & Scalability | MySQL Consulting
Monday, February 11, 2008
Tuesday, February 05, 2008
How to Clone ORACLE_HOME 10.2
Cloning an Oracle Home
Cloning an Oracle home involves creating a copy of the Oracle home and then configuring it for a new environment. If you are performing multiple Oracle Database installations, then you may want to use this method to create each Oracle home, because copying files from an existing Oracle Database installation takes less time than creating a new version of them. This method is also useful if the Oracle home that you are cloning has had patches applied to it. When you clone this Oracle home, the new Oracle home will have the patch updates as well.
Note:
In addition to cloning an Oracle home, you can clone individual Oracle Database installations by using Enterprise Manager Database Control. Oracle Database Administrator's Guide provides detailed information about cloning Oracle Database installations and Oracle homes.
To clone an Oracle home:
1. Verify that the installation of Oracle Database that you want to clone has been successful.
You can do this by reviewing the installActionsdate_time.log file for the installation session, which is normally located in the /orainventory_location/logs directory.
If you have installed patches, then you can check their status by running the following commands:
$ $ORACLE_HOME/OPatch ORACLE_HOME=ORACLE_HOME_using_patch
$ $ORACLE_HOME/OPatch opatch lsinventory
2. Stop all processes related to the Oracle home. Refer to the "Removing Oracle Software" section for more information on stopping the processes for an Oracle home.
3. Create a ZIP file with the Oracle home (but not Oracle base) directory.
For example, if the source Oracle installation is in the /u01/app/oracle/product/10.2.0/db_1, then you zip the db_1 directory by using the following command:
# zip -r db_1.zip /u01/app/oracle/product/10.2.0/db_1
Leave out the admin, flash_recovery_area, and oradata directories that are in the 10.2.0 directory. These directories will be created in the target installation later, when you create a new database there.
4. Copy the ZIP file to the root directory of the target computer.
5. Extract the ZIP file contents by using the following command:
# unzip -d / db_1.zip
6. Repeat steps 4 and 5 for each computer where you want to clone the Oracle home, unless the Oracle home is on a shared storage device.
7. On the target computer, change directory to the unzipped Oracle home directory, and remove all the .ora (*.ora) files present in the unzipped $ORACLE_HOME/network/admin directory.
8. From the $ORACLE_HOME/oui/bin directory, run Oracle Universal Installer in clone mode for the unzipped Oracle home. Use the following syntax:
$ORACLE_HOME/oui/bin/runInstaller -silent -clone ORACLE_HOME="target location" ORACLE_HOME_NAME="unique_name_on node" [-responseFile full_directory_path]
For example:
$ORACLE_HOME/oui/bin/runInstaller -silent -clone ORACLE_HOME="/u01/app/oracle/product/10.2.0/db_1" ORACLE_HOME_NAME="db_1"
The -responseFile parameter is optional. You can supply clone-time parameters on the command line or by using the response file named on the command line.
Oracle Universal Installer starts, and then records the cloning actions in the cloneActionstimestamp.log file. This log file is normally located in /orainventory_location/logs directory.
9. To create a new database for the newly cloned Oracle home, run Database Configuration Assistant as follows:
$ cd $ORACLE_HOME/bin
$ ./dbca
10. To configure connection information for the new database, run Net Configuration Assistant.
$ cd $ORACLE_HOME/bin
$ ./netca
Cloning an Oracle home involves creating a copy of the Oracle home and then configuring it for a new environment. If you are performing multiple Oracle Database installations, then you may want to use this method to create each Oracle home, because copying files from an existing Oracle Database installation takes less time than creating a new version of them. This method is also useful if the Oracle home that you are cloning has had patches applied to it. When you clone this Oracle home, the new Oracle home will have the patch updates as well.
Note:
In addition to cloning an Oracle home, you can clone individual Oracle Database installations by using Enterprise Manager Database Control. Oracle Database Administrator's Guide provides detailed information about cloning Oracle Database installations and Oracle homes.
To clone an Oracle home:
1. Verify that the installation of Oracle Database that you want to clone has been successful.
You can do this by reviewing the installActionsdate_time.log file for the installation session, which is normally located in the /orainventory_location/logs directory.
If you have installed patches, then you can check their status by running the following commands:
$ $ORACLE_HOME/OPatch ORACLE_HOME=ORACLE_HOME_using_patch
$ $ORACLE_HOME/OPatch opatch lsinventory
2. Stop all processes related to the Oracle home. Refer to the "Removing Oracle Software" section for more information on stopping the processes for an Oracle home.
3. Create a ZIP file with the Oracle home (but not Oracle base) directory.
For example, if the source Oracle installation is in the /u01/app/oracle/product/10.2.0/db_1, then you zip the db_1 directory by using the following command:
# zip -r db_1.zip /u01/app/oracle/product/10.2.0/db_1
Leave out the admin, flash_recovery_area, and oradata directories that are in the 10.2.0 directory. These directories will be created in the target installation later, when you create a new database there.
4. Copy the ZIP file to the root directory of the target computer.
5. Extract the ZIP file contents by using the following command:
# unzip -d / db_1.zip
6. Repeat steps 4 and 5 for each computer where you want to clone the Oracle home, unless the Oracle home is on a shared storage device.
7. On the target computer, change directory to the unzipped Oracle home directory, and remove all the .ora (*.ora) files present in the unzipped $ORACLE_HOME/network/admin directory.
8. From the $ORACLE_HOME/oui/bin directory, run Oracle Universal Installer in clone mode for the unzipped Oracle home. Use the following syntax:
$ORACLE_HOME/oui/bin/runInstaller -silent -clone ORACLE_HOME="target location" ORACLE_HOME_NAME="unique_name_on node" [-responseFile full_directory_path]
For example:
$ORACLE_HOME/oui/bin/runInstaller -silent -clone ORACLE_HOME="/u01/app/oracle/product/10.2.0/db_1" ORACLE_HOME_NAME="db_1"
The -responseFile parameter is optional. You can supply clone-time parameters on the command line or by using the response file named on the command line.
Oracle Universal Installer starts, and then records the cloning actions in the cloneActionstimestamp.log file. This log file is normally located in /orainventory_location/logs directory.
9. To create a new database for the newly cloned Oracle home, run Database Configuration Assistant as follows:
$ cd $ORACLE_HOME/bin
$ ./dbca
10. To configure connection information for the new database, run Net Configuration Assistant.
$ cd $ORACLE_HOME/bin
$ ./netca
Monday, February 04, 2008
The Future of DBMS and Database Computing and How Postgres will do to Oracle What Linux has done to Unix vendors.
Database Management Systems (DBMS) have been with us for several decades now, significant progress has been made in DBMS software evolution, the database management software is become ever more powerful, scaling horizontally and vertically. Database software vendors such as Oracle, Sybase, IBM, Informix keep updating their software offerings with more features being added almost on daily basis. With the database computing consolidating in the hand of single company - Oracle the logical question comes to mind what is next? Will Oracle once again reinvent the database computing or fall inevitable victim of GNU software projects. We have witnessed Linux taking over server operating systems computing and slowly dissolving and assimilating away all proprietary Unix offerings (AIX, HP, Tru64….and others), the list is ever shrinking and eventually even the last big four (AIX, HP-UX, Sun, Tru64) will succumb to overwhelming power of GNU Development. Will this happened in the database world? Of course, most of us blessed with the “vision” saw the inevitability of this evolution back in early nineties with the advent of Linux. GNU databases will overpower traditional DBMS vendors in terms of scalability, costs, performance and features. Some already exist and some have not been invented yet. So who will conquer the ever powerful database vendors such as Oracle and others? The contender is already here – PostgreSQL. A distant relative of Oracle it will come back and claim the throne of database computing.
Inevitability. PostgreSQL or any other GNU/BSD database offering will not conquer proprietary database single handedly but rather though a process of “computing evolution” i.e. our perception of database and DBMS will evolve and along with propelling GNU database software to the commanding role. There are several evolutionary elements that needed to be present in order for GNU software offering become the dominant platform of choice.
1. Project vs. Product. The GNU software in our case PostgreSQL has to be a “project” and not a “product”. Seems confusing at first but bear with me here, lets compare two database offerings PostgreSQL and MySQL one is a “project” and the other is a product. MySQL is a “product” that is owned by a software company MySQL AB with available source code. “Product” can be sold, discontinues assimilated etc…Speaking of which that probably exactly what will happened to MySQL after the recent acquisition by Sun Microsystems.
More will follow…….
Inevitability. PostgreSQL or any other GNU/BSD database offering will not conquer proprietary database single handedly but rather though a process of “computing evolution” i.e. our perception of database and DBMS will evolve and along with propelling GNU database software to the commanding role. There are several evolutionary elements that needed to be present in order for GNU software offering become the dominant platform of choice.
1. Project vs. Product. The GNU software in our case PostgreSQL has to be a “project” and not a “product”. Seems confusing at first but bear with me here, lets compare two database offerings PostgreSQL and MySQL one is a “project” and the other is a product. MySQL is a “product” that is owned by a software company MySQL AB with available source code. “Product” can be sold, discontinues assimilated etc…Speaking of which that probably exactly what will happened to MySQL after the recent acquisition by Sun Microsystems.
More will follow…….
Thursday, January 31, 2008
Sun Microsystems buying MySQL. – Calculated Step or Desperate Confusion.
Very exciting and sad news, there are a number of companies that have performed similar stunts before their agonizing demise (Novell comes to mind purchasing Word Perfect and then later SuSe). Now Sun Microsystems joined the club. Do not get me wrong here – I have been one the Sun’s biggest fans and have personally contributed to their bottom line - and I mean serious contributions here. Being a database consultant for nearly two decades I have suggested and implemented Sun hardware at a number of large sites, dealing with mostly incompetent sales reps, back and forth with configurations. Ahhhh the Sun Microsystems once the darling of Oracle DBA’s, everything seemed to work on Sun, well everything except E10000 fiasco, and E6500 processor nightmare, and…. Fine, I will not get carried away here. Sun was and still is a viable platform. I used to hold their stock, did I say used to? Yes I did. Scott is not steering Sun's ship any longer and the ship is about to run ashore. Sun fell the victims of their own success and business luck, lucky breaks – such as renaming their workstations into “internet” servers in the early nineties and then successfully jumping on the phenomenal growth of the internet, Costling’s Java escapades - the list could go on. Unfortunately a lot has changed since early nineties Firefox is again “new”, google, databases in terabytes are not “large” anymore, but Sun never changed its sales model – back and forth to the sales reps with hardware configuration, overly priced hardware and operating system, outrageous support costs, poor consulting division and not to forget ridiculous hardware offerings- “Black Box” comes to mind. I always wondered why aren’t Sun’s leaders looking at Dell? Haven’t they learned anything? Commodity Hardware – that is the end of Sun Microsystems hardware sales and failure of betting on Intel. Well you say they still have Java and Sun OS you would say, sorry folks the Sun OS will be dead with Spark architecture, and Java will outlive Sun. Things are pretty bad and now to top it all off Sun goes out and blows one billion (well only half of it in cash) for MySql. Why???!!! Simple- to speed up the its painfully slow demise. Here is the quick look in the future:
Oracle will wait for Sun to continue to loose money and soften up and then will snag Sun and MySql, the next step will be MyOracle and the end of that database. As you all know Oracle already owns the only viable MySql database storage – InnoDB.
MySql the database. MySql - the darling of developers – was never really a viable database platform, plainly SQL engine on top of text files, major features were added in Release 5, INNODB is still the only “viable” database storage for MySQL. It used to be mind boggling for me the to understand to as why so many start up companies would choose MySQL over Postrges, until I had the opportunity work as a DBA in one of them. The “Developer” attraction to MySQL is simple – you need to quickly throw a prototype of your application without worrying about security, permissions, data integrity, ACID etc … simply put all that ability that DBAs hate and developers love. Now after MAXDB is gone back to SAP AG, MySQL no longer has so-called “enterprise” grade database, I had very high hopes for MySQL cluster but they can not seem to get over physical memory/database size limitation (MySQL sells it as a “feature” of course). Developers and DBA (truly your) loved MySQL as an underdog alternative to Oracle, the “dark horse” – I liked them for that and passed their certification (very easy compared to Oracle or SQL Server). But you can hardly call Sun Microsystems an “underdog”, well may be in near future after yet another attempt at DBMS market (Sun tried to market Postgres before).
Sun Microsystems and MySQL. The answer is simple Sun is dying and in its aging brain starts making incoherent decisions – see for yourself: Sun tries to offer support for Postgres, fails at that and then buys MySQL database while supporting Greenplum’s Postgres offering and creating “database appliance” to run Greenplum Postgres, finally to make matters worse Sun unveils project “Black Box” – simply put a shipping container staffed with Sun’s hardware – truly an idiotic idea. Go make sense of that?! Well there is no common sense here just a desperate moves in the view of inevitable demise, sadly Sun is being steered by a “political” leader not a visionary, yes you can become a CEO by being “political” but sadly you cannot grow your company with the same skill set, you need a visionary. Scott you have sealed Sun’s fate by choosing your successor…
Thanks Sun for killing MySQL in your agony. But the story does not end here…
Near Future - I will assume the role of Nostradamus here:
Oracle will buy Sun and kill MySQL, Oracle will also aggressively market its own OS that will eliminate AIX, Sun OS, HP-UX and Red Hat. Oracle and Microsoft will divide the enterprise computing. Microsoft will own desktops and email, Oracle will own servers OS and the databases. But wait there more to that….
In conclusion underdog Postgres Database company (Not Greenplum) will kill Oracle, just like GNU Linux will rain supreme in OS computing….
And Apple will still fail to wrestle the desktop from Microsof, Steve Jobs will get booted from Apple (once again).
Oracle will wait for Sun to continue to loose money and soften up and then will snag Sun and MySql, the next step will be MyOracle and the end of that database. As you all know Oracle already owns the only viable MySql database storage – InnoDB.
MySql the database. MySql - the darling of developers – was never really a viable database platform, plainly SQL engine on top of text files, major features were added in Release 5, INNODB is still the only “viable” database storage for MySQL. It used to be mind boggling for me the to understand to as why so many start up companies would choose MySQL over Postrges, until I had the opportunity work as a DBA in one of them. The “Developer” attraction to MySQL is simple – you need to quickly throw a prototype of your application without worrying about security, permissions, data integrity, ACID etc … simply put all that ability that DBAs hate and developers love. Now after MAXDB is gone back to SAP AG, MySQL no longer has so-called “enterprise” grade database, I had very high hopes for MySQL cluster but they can not seem to get over physical memory/database size limitation (MySQL sells it as a “feature” of course). Developers and DBA (truly your) loved MySQL as an underdog alternative to Oracle, the “dark horse” – I liked them for that and passed their certification (very easy compared to Oracle or SQL Server). But you can hardly call Sun Microsystems an “underdog”, well may be in near future after yet another attempt at DBMS market (Sun tried to market Postgres before).
Sun Microsystems and MySQL. The answer is simple Sun is dying and in its aging brain starts making incoherent decisions – see for yourself: Sun tries to offer support for Postgres, fails at that and then buys MySQL database while supporting Greenplum’s Postgres offering and creating “database appliance” to run Greenplum Postgres, finally to make matters worse Sun unveils project “Black Box” – simply put a shipping container staffed with Sun’s hardware – truly an idiotic idea. Go make sense of that?! Well there is no common sense here just a desperate moves in the view of inevitable demise, sadly Sun is being steered by a “political” leader not a visionary, yes you can become a CEO by being “political” but sadly you cannot grow your company with the same skill set, you need a visionary. Scott you have sealed Sun’s fate by choosing your successor…
Thanks Sun for killing MySQL in your agony. But the story does not end here…
Near Future - I will assume the role of Nostradamus here:
Oracle will buy Sun and kill MySQL, Oracle will also aggressively market its own OS that will eliminate AIX, Sun OS, HP-UX and Red Hat. Oracle and Microsoft will divide the enterprise computing. Microsoft will own desktops and email, Oracle will own servers OS and the databases. But wait there more to that….
In conclusion underdog Postgres Database company (Not Greenplum) will kill Oracle, just like GNU Linux will rain supreme in OS computing….
And Apple will still fail to wrestle the desktop from Microsof, Steve Jobs will get booted from Apple (once again).
How to Locate Database Process on OS
This script will map database process to the operating system process (spid), provide username and program (sqlplus, java etc...):
select p.spid, s.username, s.program
from v$process p, v$session s
where p.addr=s.paddr order by 2, 3, 1
/
select p.spid, s.username, s.program
from v$process p, v$session s
where p.addr=s.paddr order by 2, 3, 1
/
Wednesday, January 30, 2008
Oracle Releases "Small" Client - Finally
Oracle finally released so-called "small client" that can be downloaded from http://www.oracle.com/technology/tech/oci/instantclient/index.html no more Oracle "bloatware" client installation and maintenance issues. Thank you Oracle it only took you twenty years in development...
Monday, January 28, 2008
Startting and Stopping Oracle Apps 11i
Order of StartUp of Services Should be
First DB Listener, Database & then Application Tier Services
Order of ShutDown of Services Should be
First Application Tier Services then Database & DB Listener
Database Startup/Shutdown Scripts
Depending on your AD Version these will be in ORACLE_HOME / appsutil/scripts /SID_hostname
addbctl.sh database startup shutdown script
addlnctl.sh database listener Script
Where
AD is for Application DBA
DB is for database
DLN is database listener
CTL is control
Isn't this easy to remeber ( Thanks to Oracle for naming convention)
-----
Application Tier Startup/Shutdown Scripts
Depending on your AD Version these will be in
OAD_TOP/admin/scripts/ SID_hostname
adalnctl.sh Apps Listener Control Script
adapcctl.sh Apache/Web Server Control Script
adcmctl.sh Concurrent Manager Control Script
addisctl.sh Discoverer Control Script
adfrmctl.sh Forms server Control Script
adrepctl.sh Report Server Control Script
adstpall.sh Stop All Middle/Application Tier
adstrtall.sh Start All Middle/Application Tier
Where AD & CTL you already know now :) isn't it
adl stand for Apps Listener
apc stand for Apache
cm Concurrent Manager
dis Discoverer
frm forms
rep report
Do you know whats Use of Apps Listener ? Check else I will post it in future post .
Check what Advertisers has to say on your right side of page .
First DB Listener, Database & then Application Tier Services
Order of ShutDown of Services Should be
First Application Tier Services then Database & DB Listener
Database Startup/Shutdown Scripts
Depending on your AD Version these will be in ORACLE_HOME / appsutil/scripts /SID_hostname
addbctl.sh database startup shutdown script
addlnctl.sh database listener Script
Where
AD is for Application DBA
DB is for database
DLN is database listener
CTL is control
Isn't this easy to remeber ( Thanks to Oracle for naming convention)
-----
Application Tier Startup/Shutdown Scripts
Depending on your AD Version these will be in
OAD_TOP/admin/scripts/ SID_hostname
adalnctl.sh Apps Listener Control Script
adapcctl.sh Apache/Web Server Control Script
adcmctl.sh Concurrent Manager Control Script
addisctl.sh Discoverer Control Script
adfrmctl.sh Forms server Control Script
adrepctl.sh Report Server Control Script
adstpall.sh Stop All Middle/Application Tier
adstrtall.sh Start All Middle/Application Tier
Where AD & CTL you already know now :) isn't it
adl stand for Apps Listener
apc stand for Apache
cm Concurrent Manager
dis Discoverer
frm forms
rep report
Do you know whats Use of Apps Listener ? Check else I will post it in future post .
Check what Advertisers has to say on your right side of page .
Tuesday, August 28, 2007
Starting and Stopping Oracle Apps 12i
Order of Startup Shutdown Apps 12i
————————————–
As in Oracle Apps 11i order for startup is
A) Start Database Tier Services
–Start Database Listener
–Start Database
Then
B) Start Application/Middle Tier Services
– adstrtal.sh
Order for shutdown in Oracle Apps R12 is
A) Stop Application/Middle Tier Services
– adstpall.sh
Then
B) Stop Database Tier Services
–Stop Database
–Stop Database Listener
Database Tier Scripts in R12
————————————–
For Database tier you need to start database and database listener. Scripts are located in Database_Install_Dir/db/tech_st/10.2.0/appsutil/scripts/$CONTEXT_NAME- For Database
Use script addbctl.sh
- For Database Listener
Use script addlnctl.sh
or alternatively you can use
lsnrctl startstop listener_name (For Database Listener)
sqlplus “/as sysdba”
SQL> startup shutdown immediate
Middle/Application Tier Scripts in R12
————————————————-
Scripts for Application Tier services in R12 are located in “Install_base/inst/apps/$CONTEXT_NAME/admin/scripts“
where CONTEXT_NAME is of format SID_HOSTNAME
i) adstrtal.sh
Master script to start all components/services of middle tier or application tier. This script will use Service Control API to start all services which are enabled after checking them in context file (SID_HOSTNAME.xml or CONTEXT_NAME.xml)
ii) adstpall.sh
Master script to stop all components/services of middle tier or application tier.
iii) adalnctl.sh
Script to start / stop apps listener (FNDFS and FNDFS). This listener will file will be in 10.1.2 ORACLE_HOME (i.e. Forms & Reports Home)
listener.ora file will be in $INST_TOP/apps/$CONTEXT_NAME/ora/10.1.2/network/admin directory
(Mostly similar to one in 11i with only change in ORACLE_HOME i.e. from 8.0.6 to 10.1.2 )
iv) adapcctl.sh
Script to start/stop Web Server or Oracle HTTP Server. This script uses opmn (Oracle Process Manager and Notification Server) with syntax similar to opmnctl [startstop]proc ohs
like opmnctl stopproc ohs .
(In 11i this script directly used to call apachectl executable but now calls opmnctl which in turn calls apachectl. In 11i web server oracle home was 1.0.2.2.2 but in R12 its 10.1.3)
v) adcmctl.sh
Script to start / stop concurrent manager, Similar to one in 11i. (This script in turn calls startmgr.sh )
vi) adformsctl.sh
Script to start / stop Forms OC4J from 10.1.3 Oracle_Home. This script will also use opmnctl to start/stop Forms OC4J like
opmnctl stopproc type=oc4j instancename=forms
vii) adformsrvctl.sh
This script is used only if you wish to start forms in socket mode. Default forms connect method in R12 is servlet.
If started this will start frmsrv executable from 10.1.2 Oracle_Home in Apps R12
viii) adoacorectl.sh
This script will start/stop oacore OC4J in 10.1.3 Oracle_Home. This scripts will also use opmnctl (similar to adapcctl & adformsctl) to start oacore instance of OC4J like
opmnctl startproc type=oc4j instancename=oacore
ix) adoafmctl.sh
This script will start/stop oafm OC4J in 10.1.3 Oracle_Home. This scripts will also use opmnctl (similar to above) to start oacore instance of OC4J like
opmnctl startproc type=oc4j instancename=oafm
x) adopmnctl.sh
This script will start/stop opmn service in 10.1.3 Oracle_Home. opmn will control all services in 10.1.3 Oracle_Home like web server or various oc4j instances. If any services are stopped abnormally opmn will/should start them automatically.
xi) jtffmctl.sh
This script will be used to start/stop one to one fulfilment server.
xii) mwactl.sh
To start / stop mwa telnet server where mwa is mobile application.
Log File Location for Startup Shutdown Services in R12
———————————————————————-
Log files for startup/shutdown scripts for application/mid tier in R12 are in $INST_TOP/apps/$CONTEXT_NAME/logs/appl/admin/log
(adalnctl.txt, adapcctl.txt, adcmctl.txt, adformsctl.txt, adoacorectl.txt, adoafmctl.txt, adopmnctl.txt, adstrtal.log, jtffmctl.txt )
————————————–
As in Oracle Apps 11i order for startup is
A) Start Database Tier Services
–Start Database Listener
–Start Database
Then
B) Start Application/Middle Tier Services
– adstrtal.sh
Order for shutdown in Oracle Apps R12 is
A) Stop Application/Middle Tier Services
– adstpall.sh
Then
B) Stop Database Tier Services
–Stop Database
–Stop Database Listener
Database Tier Scripts in R12
————————————–
For Database tier you need to start database and database listener. Scripts are located in Database_Install_Dir/db/tech_st/10.2.0/appsutil/scripts/$CONTEXT_NAME- For Database
Use script addbctl.sh
- For Database Listener
Use script addlnctl.sh
or alternatively you can use
lsnrctl startstop listener_name (For Database Listener)
sqlplus “/as sysdba”
SQL> startup shutdown immediate
Middle/Application Tier Scripts in R12
————————————————-
Scripts for Application Tier services in R12 are located in “Install_base/inst/apps/$CONTEXT_NAME/admin/scripts“
where CONTEXT_NAME is of format SID_HOSTNAME
i) adstrtal.sh
Master script to start all components/services of middle tier or application tier. This script will use Service Control API to start all services which are enabled after checking them in context file (SID_HOSTNAME.xml or CONTEXT_NAME.xml)
ii) adstpall.sh
Master script to stop all components/services of middle tier or application tier.
iii) adalnctl.sh
Script to start / stop apps listener (FNDFS and FNDFS). This listener will file will be in 10.1.2 ORACLE_HOME (i.e. Forms & Reports Home)
listener.ora file will be in $INST_TOP/apps/$CONTEXT_NAME/ora/10.1.2/network/admin directory
(Mostly similar to one in 11i with only change in ORACLE_HOME i.e. from 8.0.6 to 10.1.2 )
iv) adapcctl.sh
Script to start/stop Web Server or Oracle HTTP Server. This script uses opmn (Oracle Process Manager and Notification Server) with syntax similar to opmnctl [startstop]proc ohs
like opmnctl stopproc ohs .
(In 11i this script directly used to call apachectl executable but now calls opmnctl which in turn calls apachectl. In 11i web server oracle home was 1.0.2.2.2 but in R12 its 10.1.3)
v) adcmctl.sh
Script to start / stop concurrent manager, Similar to one in 11i. (This script in turn calls startmgr.sh )
vi) adformsctl.sh
Script to start / stop Forms OC4J from 10.1.3 Oracle_Home. This script will also use opmnctl to start/stop Forms OC4J like
opmnctl stopproc type=oc4j instancename=forms
vii) adformsrvctl.sh
This script is used only if you wish to start forms in socket mode. Default forms connect method in R12 is servlet.
If started this will start frmsrv executable from 10.1.2 Oracle_Home in Apps R12
viii) adoacorectl.sh
This script will start/stop oacore OC4J in 10.1.3 Oracle_Home. This scripts will also use opmnctl (similar to adapcctl & adformsctl) to start oacore instance of OC4J like
opmnctl startproc type=oc4j instancename=oacore
ix) adoafmctl.sh
This script will start/stop oafm OC4J in 10.1.3 Oracle_Home. This scripts will also use opmnctl (similar to above) to start oacore instance of OC4J like
opmnctl startproc type=oc4j instancename=oafm
x) adopmnctl.sh
This script will start/stop opmn service in 10.1.3 Oracle_Home. opmn will control all services in 10.1.3 Oracle_Home like web server or various oc4j instances. If any services are stopped abnormally opmn will/should start them automatically.
xi) jtffmctl.sh
This script will be used to start/stop one to one fulfilment server.
xii) mwactl.sh
To start / stop mwa telnet server where mwa is mobile application.
Log File Location for Startup Shutdown Services in R12
———————————————————————-
Log files for startup/shutdown scripts for application/mid tier in R12 are in $INST_TOP/apps/$CONTEXT_NAME/logs/appl/admin/log
(adalnctl.txt, adapcctl.txt, adcmctl.txt, adformsctl.txt, adoacorectl.txt, adoafmctl.txt, adopmnctl.txt, adstrtal.log, jtffmctl.txt )
Monday, April 23, 2007
Oracle Apps DBA 11i Interview Questions
Q1. What is wdbsvr.app file used for? What's full path of this file? What's significance of this file ?
Ans: The wdbsvr.app is used by mod_plsql component of Apache to connect to
database. The File is located at $IAS_ORACLE_HOME/Apache/modplsql/cfg .
Q2. Where would i find .rf9 file, and what execatly it does ?
Ans: These files are used during restart of patch in case of patch failure because of some reason.
Q3. Where is appsweb.cfg or appsweb_$CONTEXT.cfg stored & why its used?
Ans: This file is defined by environment variable FORMS60_WEB_CONFIG_FILE This is usually in directory $OA_HTML/bin on forms tier. This file is used by any forms client session. When a user try to access forms , f60webmx picks up this file and based on this configuration file creates a forms session to user/client.
Q4. Can you clone from multi node system to single node system & vice versa ?
Ans: Yes.
Q5. What is .dbc file , there are lot of dbc file under $FND_SECURE, How its determined that which dbc file to use from $FND_SECURE ?
Ans: dbc as name says is database connect descriptor file which stores database connection information used by application tier to connect to database. This file is in directory $FND_TOP/secure also called as FND_SECURE
Q6. Whats things you do to reduce patch timing ?
Ans: # Merging patches via admrgpch
# Use various adpatch options like nocompiledb or nocompilejsp
# Use defaults file
# Staged APPL_TOP during upgrades
# Increase batch size (Might result into negative )
Q7. Can you apply patch without putting Applications 11i in Maintenance mode ?
Ans: Yes, use options=hotpatch as mentioned above with adpatch. from AD.I onwards we need to enable maintenance mode inorder to apply apps patches.
Q8. adident utility is used for what ?
Ans: adident utility in oracle apps is used to find version of any file . AD Identification.
for ex. "adident Header
Q9. How can you licence a product after installation ?
Ans: By using ad utility adlicmgr to licence product in Oracle Apps.
Q10. What is MRC ? What you do to enable MRC in Apps ?
Ans: MRC also called as Multiple Reporting Currency in oracle Apps. Default you have currency in US Dollars but if your organization operating books are in other currency then you as apps dba need to enable MRC in Apps.
Q11. What is access_log in apache , what entries are recored in access_log ? Where is default location of this file ?
Ans: access_log in Oracle Application Server records all users accessing oracle applications 11i. This file location is defined in httpd.conf with default location at $IAS_ORACLE_HOME/Apache/Apache/logs. Entries in this file is defined by directive LogFormat in httpd.conf Typical entry in access_log is
198.0.0.1 - - [10/Sep/2006:18:37:17 +0100] "POST /OA_HTML/OA.jsp?.... HTTP/1.1" 200 28035
where 200 is HTTP status code & last digits 28035 is bytes dowloaded as this page(Size of page).
Q12. What is session time out parameter & where all you define these values ?
Ans: In order to answer first you have to understand what kind of seesions are in Apps 11i and what is Idle timeout ?
In Apps there are two broad categories of session
- Self Service Application Session ( Server by Web Server iAS Apache & Jserv, like iRecruitment, iProcurement)
-Forms session ( served by your form session, like system Administrator)
What is Session Idle time ?
If Oracle Apps client is not doing any activity for some time (when application user goes for coffee or talks over phone) session during that time is called as Idle Session & because of security reason, performance issues and to free up system resource Oracle Applications terminates client session( both forms & self service) after idle time value is reached to the one mentioned in configuration file.
From FND.G or 11.5.9 or with introduction of AppsLocalLogin.jsp to enter into application, profile option "ICX Session Timeout" is used only to determine Forms Session Idle timeout value . This might be confusing as earlier this profile option used to control forms as well as self service application(with session.timeout) session.timeout is used to control Idle session timeout for Self Service Applications ( Served by Jserv via JVM )
From where ICX : Session Timeout & session.timeout get values ?
Autoconfig determines value for profile option "ICX: Session Timeout" and "session.timeout" from entry in context file ( $APPL_TOP/admin/SID_hostname.xml ) with parameter s_sesstimeout where value mentioned is in milliseconds so profile option ICX: Session Timeout value should be s_sesstimeout/ (1000 * 60) which means here its 10 Minutes. This value is also set in zone.properties in $IAS_ORACLE_HOME/Apache/Jserv where number mentioned is in milli second i.e. 600000 ( equal to 10 Minutes)session.timeout = 600000
session.timeout mentioned in zone.properties is in milli secondsICX Session Time out mentioned in profile option ICX: Session Timeout is in minutes so ICX session timeout=30 & session.timeout= 1800,000 are same 30 minutes
P.S. ICX Session time out was introduced in FND.D so if your FND version is below D you might not see this variable.
Important Things Apps DBA should consider while setting session timeout value ?
1.. If you keep session.timeout value too high , when some oracle application user accessing Self service application terminates
his session, so longer idle session will drain JVM resource & can result in Java.Lang No Memory available issues .
2. If you keep it too low, users going out for tea or sitting idle for some time have to login again into application & can be
annoying .
Thumb rule is session time out usually set to 30 minutes.
Q13. Where is applications start/stop scripts stored ?
Ans: $COMMON_TOP/admin/scripts/$CONTEXT_NAME
Q14. What are main configuration files in Web Server (Apache) ?
Ans: Main configuration files in Oracle Apps Web Server are
# httpd.conf, apps.conf, oracle_apache.conf, httpd_pls.conf
# jserv.conf, ssp_init.txt, jserv.properties, zone.properties
# plsql.conf, wdbsvr.app, plsql.conf
Q15. How to check if Apps 11i System is Autoconfig enabled ?
Ans: Under $AD_TOP/bin check for file adcfginfo.sh & if this exists use
adcfginfo.sh contextfile= show=enabled
If this file is not there , look for any configuration file under APPL_TOP if system is Autoconfig enabled then you will see entry like
# AutoConfig automatically generates this file. It will be read and .......
Q16. How to check if Oracle Apps 11i System is Rapid Clone enabled ?
Ans: For syetem to be Rapid Clone enabled , it should be Autoconfig enabled (Check above How to confirm if Apps 11i is Autoconfig enabled). You should have Rapid Clone Patches applied , Rapid Clone is part of Rapid Install Product whose Family Pack Name is ADX. By default all Apps 11i Instances 11.5.9 and above are Autoconfig & Rapid Clone enabled.
Q17. What is plssql/database cache?
Ans: In order to improve performance mod_pls (Apache component) caches some database content to file. This database/plssql cache is usually of type session & plsql cache
# session cache is used to store session information.
# plsql cache is used to store plsql cache i.e. used by mod_pls
Q18. How to determine Oracle Apps 11i Version ?
Ans: select RELEASE_NAME from fnd_product_groups;
You should see output like
RELEASE_NAME
-----------------------
11.5.9 or 11.5.10.2
Q19. What is RRA/FNDFS ?
Ans: Report Review Agent(RRA) also referred by executable FNDFS is default text viewer in Oracle Applications 11i for viewing output files & log files. As most of apps dba's are not clear about Report Server & RRA.
Q20. What is PCP in Oracle Applications 11i ? In what scenarios PCP is Used ?
Ans: PCP stands for parallel Concurrent processing.Usually you have one Concurrent Manager executing your requests but if you can configure Concurrent Manager running on two machines (Yes you need to do some additional steps in order to configure Parallel Concurrent Processing) . So for some of your requests primary CM Node is on machine1 and secondary CM node on machine2 and for some requests primary CM is on machine2 & secondary CM on machine1.
Scenario
********
Well If you are running GL Month end reports or taxation reports annually these reposrts might take couple of days. Some of these requests are very resource intensive so you can have one node running long running , resource intensive requests while other processing your day to day short running requets.
another scenario is when your requests are very critical and you want high resilience for your Concurrent Processing Node , you can configure PCP. So if node1 goes down you still have CM node available processing your requests.
Q21. Output & Logfiles for requests executed on source Instance not working on cloned Instance?
Ans: Here is exact problem description - You cloned an Oracle Apps Instance from PRODBOX to another box with Instance name say CLONEBOX on 1st of August. You can any CM logs/output files after 1st of August only becuase these all are generated on CLONEBOX itself, But unable to view the logs/output files which are prior to 1st August. What will you do & where to check ?
Log , Output file path & location is stored in table FND_CONCURRENT_REQUESTS. Check
select logfile_name, logfile_node_name, outfile_name, outfile_node_name from fnd_concurrent_requests where request_id=&requestid ;
where requestid is id of request for which you are not able to see log or out files. You should see output like
/u01/PRODBOX/log/l123456.req, host1,/u01/PRODBOX/out/o123456.out, host1 Update it according to your cloned Instance Variables.
Q22. How to confirm if Report Server is Up & Running ?
Ans: Report Server is started by executable rwmts60 on concurrent manager Node & this file is under $ORACLE_HOME/bin .execute command on your server like
ps -ef | grep rwmts60
You should get output like
applmgr ....... rwmts60 name=REP60_VISION
where VISION is your Instance name.
Else you can submit a request like "Active Users" with display set to PDF, check output & log file to see if report server can display PDF files.
Q23. What is difference between ICM, Std Managers & CRM in Concurrent Manager ?
Ans: # ICM stand for Internal Concurrent Manager, which controls other managers. If it finds other managers down , it checks & try to restart them. You can say it as administrator to other concurrent managers. It has other tasks as well.
# Standard Manager These are normal managers which control/action on the requests & does batch or single request processing.
# CRM acronym for Conflict Resolution Manager is used to resolve conflicts between managers & request. If a request is submitted whose execution is clashing or it is defined not to run while a particular type of request is running then such requests are actioned/assigned to CRM for Incompatibilities & Conflict resolution.
Q24. What is use of Apps listener ? How to start Apps listener ? How to confirm if Apps Listener is Up & Running ?
Ans: Apps Listener usually running on All Oracle Applications 11i Nodes with listener alias as APPS_$SID is mainly used for listening requests for services like FNDFS & FNDSM.
Start
******
In Oracle 11i, you have script adalnctl.sh which will start your apps listener. You can also start it by command
- lsnrctl start APPS_$SID (Replace sid by your Instance SID Name)
Confirm
********
execute below command
lsnrctl status APPS_$SID (replcae SID with your Instance Name)
so If your SID is VISION then use lsnrctl status APPS_VISION out put should be like
Services Summary...
FNDFS has 1 service handler(s)
FNDSM has 1 service handler(s)
The command completed successfully
Q25. What is Web Listener ?
Ans: Web Listener is Web Server listener which is listening for web Services(HTTP) request. This listener is started by adapcctl.sh & defined by directive (Listen, Port) in httpd.conf for Web Server. When you initially type request like http://becomeappsdba.blogspot.com:80 to access application here port number 80 is Web Listener port.
Q26. How will you find Invalid Objects in database ? How to compile Invalid Objects in database ?
Ans: using query
SQLPLUS> select count(*) from dba_objects where status like 'INVALID';
Compile
********
- using ADADMIN
- using utlrp.sql which is shipped with Oracle.
Q27. How to compile JSP in Oracle Apps ?
Ans: Using ojspCompile.pl perl script shipped with Oracle apps to compile JSP files. This script is under $JTF_TOP/admin/scripts. Sample compilation method is
perl -v ojspCompile.pl --compile --quiet
Q28. What is difference between adpatch & opatch ? Can you use both adpatch & opatch in Apps ?
Ans: Yes , we can use both adpatch and opatch in Apps. adpatch is an ad utility used for applying apps patches, whereas opatch is a utility used to apply rdbms patches.
Q29. Where will you find forms configuration details apart from xml file ? What is forms server executable Name ?
Ans: Forms configuration at time of startup is in script adfrmctl.sh and appsweb_$CONTEXT_NAME.cfg (defined by environment variable FORMS60_WEB_CONFIG_FILE) for forms client connection used each time a user initiates forms connection.
- f60srvm is the forms executable name.
Q30. What are different modes of forms in which you can start Forms Server and which one is default ?
Ans: There are two modes in which we can start forms.
- Socket Mode
- Servlet Mode.
By Default forms are configured to start in socket mode.
Q31. How you will start Discoverer in Oracle Apps 11i ?
Ans: In order to start dicoverer you can use script addisctl.sh under $OAD_TOP/admin/scripts/$CONTEXT_NAME
or startall.sh under $ORACLE_HOME/discwb4/util (under Middle/Application Tier)
Q32. How many ORACLE HOME are Oracle Apps and whats significance of each ?
Ans: There are three $ORACLE_HOME in Oracle Apps, Two for Application Tier (Middle Tier) and One in Database Tier.
# ORACLE_HOME 1 : On Application Tier used to store 8.0.6 techstack software. This is used by forms, reports & discoverer.
ORACLE_HOME should point to this ORACLE_HOME which applying Apps Patch.
# ORACLE_HOME 2: On Application Tier used by iAS (Web Server) techstack software. This is used by Web Listener &
contains Apache.
# ORACLE_HOME 3: On Database Tier used by Database Software usually 8i,9i or 10g database.
Q33. Where is HTML Cache stored in Oracle Apps Server ?
Ans: Oracle HTML Cache is available at $COMMON_TOP/_pages for some previous versions you might find it in $OA_HTML/_pages
Q34. Where is plssql cache stored in Oracle Apps ?
Ans: sually two type of cache session & plssql stored under $IAS_ORACLE_HOME/Apache/modplsql/cache
Q35. What happens if you don't give cache size while defining Concurrent Manager ?
Ans: Lets first understand what is cache size in Concurrent Manager. When Manager picks request from FND CONCURRENT REQUESTS Queues, it will pick up number of requests defined by cache size in one shot & will work on them before going to sleep. So in my views if you don't define cache size while defining CM then it will take default value 1, i.e. picking up one request per cycle.
Q36. What are few profile options which you update after cloning ?
Ans: Rapid clone updates profile options specific to site level . If you have any profile option set at other levels like server, responsibility, user....level then reset them.
- Site Name
Q39. How to retrieve SYSADMIN password ?
Ans: If forgot password link is enabled and sysadmin account is configured with mail id user forget password link else you can reset sysadmin password via FNDCPASS.
Q40. If you have done two node Installation, First machine : Database and concurrent processing server. 2nd machine: form,web Which machine have admin server/node?
Ans: Admin server will always reside on machine where Concurrent Processing Resides.
Q41. What is GWYUID, Where GWYUID defined & what is its used in Oracle Applications ?
Ans: GWYUID , stands for Gateway User ID and password. Usually like APPLSYSPUB/PUB
GWYUID is defined in dbc i.e. Database Connect Descriptor file . It is used to connect to database by think clients.
Q42. Whats is TWO_TASK in Oracle Database ?
Ans: TWO_TASK mocks your tns alias which you are going to use to connect to database. Lets assume you have database client with tns alias defined as PROD to connect to Database PROD on machine teachmeoracle.com listening on port 1521. Then usual way to connect is sqlplus username/passwd@PROD ; now if you don't want to use @PROD then you set TWO_TASK=PROD and then can simply use sqlplus username/passwd then sql will check that it has to connect to tnsalias define by value PROD i.e. TWO_TASK
Q43. What is difference between GUEST_USER_PWD (GUEST/ORACLE) & GWYUID ?
Ans: GUEST_USER_PWD(Guest/Oracle) is used by JDBC Thin Client where as GWYUID is used by Thick Clients like via Forms Connections.
Q44. How to check number of forms users at any time ?
Ans: Forms Connections initiate f60webmx connections so you can use
ps -ef | grep f60webmx | wc -l
Q45. What is 0 & Y in FNDCPASS, FNDLOAD or WFLOAD ?
Ans: 0 & Y are flags for FND Executable like FNDCPASS & FNDLOAD where
0 is request id (request ID 0 is assigned to request ID's which are not submitted via Submit Concurrent Request Form.
'Y' indicates the method of invocation. i.e. it is directly invoked from the command-line not from the Submit Request Form.
Q46. In a Multi Node Installation, How will you find which node is running what Services ?
Ans: You can query for table FND_NODES and check for column , SUPPORT_CP ( for Concurrent Manager) SUPPORT_FORMS ( for forms server) , SUPPPORT_WEB (Web Server), SUPPORT_ADMIN( Admin Server), and SUPPORT_DB for database tier.
You can also check same from CONTEXT File (xml file under APPL_TOP/admin)
Q47. If your system has more than one Jinitiator, how will the system know, which one to pick. ?
Ans: When client makes a forms connection in Oracle Applications, forms client session uses configuration file defined by environment variable FORMS60_WEB_CONFIG_FILE also called as appsweb config file. These days this file is of format appsweb_$CONTEXT.cfg The initiator version number defined by parameter jinit_ver_name in this file will be used
Q48. While applying Apps patch using adpatch, if you want to hide the apps password, how will that be possible ?
Ans: using flags=hidepw
Q49. What is importance of IMAP Server in Java Notification Mailer ?
Ans: IMAP stands for Internet Message Access Protocol and Java Notification mailer require IMAP server for Inbound Processing of Notification Mails.
Q50. What is difference between Socket & Servlet Mode in Apps Forms ?
Ans: When forms run SOCKET Mode these are dedicated connection between Client Machine & Form Server (Started by adfrmctl.sh). When Forms run in servlet mode the forms requests are fulfilled by Jserv in Apache . There will be additional JVM for Forms Request in that case and you won't start form via adfrmctl.sh.
Q51. a. How to find OUI version ?
b. How to find Database version ?
c. How to find Oracle Workflow Cartridge Release Version ?
d. How to find opatch Version ?
e. How to find Version of Apps 11i ?
f. How to Discoverer Version installed with Apps ?
g. How to find Workflow Version embedded in Apps 11i ?
h. How to find version of JDK Installed on Apps ?
Ans: OUI
***
OUI stands for Oracle Universal Installer. In order to find Installer version you have to execute ./runInstaller -help ( From OUI location)
You will get output like
Oracle Universal Installer, Version 10.1.0.4.0 Production Copyright (C) 1999, 2005, Oracle. All rights reserved.
That means OUI version in above case is 10.1.0.4
OUI location is $ORACLE_HOME/oui/bin
DB
**
select * from v$version;
Oracle Workflow
***************
Log in to the database as the owf_mgr user and issue
select wf_core.translate('WF_VERSION') from dual;
Opatch
*******
$ORACLE_HOME/OPatch/opatch version
Apps
****
select RELEASE_NAME from fnd_product_groups;
Discoverer
**********
Discoverer with Apps installed in ORACLE_HOME same as 806 is usually 3i or 4i. To find Version login to Application Tier & go to $ORACLE_HOME/discwb4/bin and execute
strings dis4ws | grep -i 'discoverer version'
Workflow embedded in 11i
************************
Run following SQL from apps user ;
SQL>select TEXT from WF_RESOURCES where NAME='WF_VERSION';
You should see output like
TEXT
-----------------------
2.6.0
Which means you are on Workflow Version 2.6.0
You can also use script wfver.sql in FND_TOP/sql to find version of workflow in Apps.
JDK in Apps
***********
There might be multiple JDK installed on Operating System . Like JDK 1.3.1, 1.4.2 or 1.5 but in order to find which Version of JDK your Apps is using
Open your Context File $SID_$HOSTNAME.xml under $APPL_TOP/admin and look for variable
JDK_TOP oa_var="s_jdktop" what so ever value assigned against that parameter go to that directory & cd bin & execute command
./java -version so lets assume entry above is /usr/jdk then cd /usr/jdk/bin & ./java -version , you will see output like
java version "1.4.2_10"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.4.2_10-b03)
Java HotSpot(TM) Client VM (build 1.4.2_10-b03, mixed mode)
Which means you are using JDK 1.4.2 in Oracle Applications 11i.
Q52. If by mistake you/someone deleted FNDLIBR can this executable be restored if Yes, How & if no, what will you do ?
Ans: Yes, you can restore FNDLIBR executables
Run adadmin on concurrent manager node
select option 2. Maintain Applications Files menu
then select 1. Relink Applications programs
when prompts for
Enter list of products to link ('all' for all products) [all]
select FND
when prompt for
Generate specific executables for each selected product [No] ? YES
select YES
& from list of executables select FNDLIBR
This will create new FNDLIBR executables.
Q53. What is .pls files which you see with apps ?
Ans: pls file stands for plsql files. In apps patch these files contain code to create package spec or package body or both.
Q54. What are .ldt & .lct files which you see in apps patch or with FNDLOAD ?
Ans: .ldt & .lct stands for Loader datafile & Loader configuration files, used frequently in migrating customization, profile options, configuration data, etc.. across Instances.
Q55. What are .odf file in apps patch ?
Ans: odf stands for Object Description Files used to create tables & other database objects.
Q56. What to find Form Server log files in forms ?
Ans: Form Server Start up log file default location is $OAD_TOP/admin/log/$CONTEXT_NAME/f60svrm.txt
Forms Run Time Diagnostics default location is $ORACLE_HOME/forms60/log/$CONTEXT_NAME
Q57. How to convert pll to pld file or pld file to pll ?
Ans: Pll->Pld f60gen module=MSCOSCW3.pll module_type=library userid=apps/ module_access=file output_file=MSCOSCW1.pld script=yes
Pld -> pll f60gen module=MSCOSCW3.pld userid=apps/ module_type=library module_access=file output_file=MSCOSCW1.pll parse=y batch=yes compile_all=special
Q58. Is APPS_MRC Schema exists for MRC in 11.5.10 and higher ?
Ans: No , apps_mrc schema is dropped with 11.5.10 Upgrade & 11.5.10 new Install. This is replaced by more Integrated Architecture.
Q59.If APPS_MRC schema is not used in 11.5.10 and higher then How MRC is working ?
Ans: For products like Payable, Recievables which uses MRC and if MRC is enabled then each transaction table in base schema related to currency now has an assoicated MRC Subtables.
Q60. When you apply C driver patch does it require database to be Up & Why ?
Ans: Yes , database & db listener should be Up when you apply any driver patch in apps. even if driver is not updating any database object connection is required to validate apps & other schema and to upload patch history information in database tables.
Q61. Can C driver in apps patch create Invalid Object in database ?
Ans: No , C driver only copies files in File System. Database Object might be invalidated during D driver when these objects are created/dropped/modified.
Q.62 Why does a worker fails in Oracle Apps Patch and few scenarios in which it failed for you ?
Ans: This question sounds stupid but this is asked quite often in Apps DBA Interview. Apps Patch worker can fail in case it doesn't find expected data, object, files or any thing which driver is trying to update/edit/modify. Possible symptoms may be underlying tables/objects are invalid, a prereq patch is missing , login information is incorrect, inconsistency in seeded data...
Q63. What is dev60cgi & f60cgi ?
Ans: cgi stands for Common Gateway Interface and these are Script Alias in Oracle Apps used to access forms server . Usually Form Server access directly via http://hostname:port/dev60cgi/f60cgi
Q64. What is difference between mod_osso & mod_ose in Oracle HTTP Server ?
Ans: mod_osso is Oracle Single Sign-On Module where as mod_ose is module for Oracle Servlet Engine.
mod_osso is module in Oracle's HTTP Server serves as Conduit between Oracle Apache Server & Singl Sign-On Server where as mod_ose is also another module in Oracle's HTTP Server serves as conduit between Oracle Apache & Oracle Servlet Engine.
Q65. What is difference between COMPILE_ALL=SPECIAL and COMPILE=ALL while compiling Forms ?
Ans: Both the options will compile all the PL/SQL in the resultant .FMX, .PLX, or .MMX file but COMPILE_ALL=YES also changes the cached version in the source .FMB, .PLL, or .MMB file. This confuses version control and build tools (CVS, Subversion, make, scons); they believe you've made significant changes to the source. COMPILE_ALL=SPECIAL does not do this.
Q66. What is ps -ef or ps command in Unix ? for work ex < 1 yr
Ans: ps is unix/linux utility or executable to find status of process. Used mainly to find if services/process is running or not.
Q67. What is GSM in Oracle application E-Business Suite ?
Ans: GSM stands for Generic Service Management Framework. Oracle E-Business Suite consist of various compoennts like Forms, Reports, Web Server, Workflow, Concurrent Manager ..
Earlier each service used to start at their own but managing these services (given that) they can be on various machines distributed across network. So Generic Service Management is extension of Concurrent Processing which manages all your services , provide fault tolerance (If some service is down ICM through FNDSM & other processes will try to start it even on remote server) With GSM all services are centrally managed via this Framework.
Q68. What is FNDSM ?
Ans: FNDSM is executable & core component in GSM ( Generic Service Management Framework discussed above). You start FNDSM services via APPS listener on all Nodes in Application Tier in E-Business Suite.
Q69. What is iAS Patch ?
Ans: iAS Patch are patches released to fix bugs associated with IAS_ORACLE_HOME (Web Server Component) Usually these are shiiped as Shell scripts & you apply iAS patches by executing Shell script. Note that by default ORACLE_HOME is pointing to 8.0.6 ORACLE_HOME and if you are applying iAS patch export ORACLE_HOME to iAS . You can do same by executing environment file under $IAS_ORACLE_HOME
Q70. If we run autoconfig which files will get effected ?
Ans: n order to check list of files changes during Autoconfig , you can run adchkcfg utility which will generate HTML report. This report will list all files & profile options going to change when you run AutoConfig.
Q71. What is difference between .xml file & AutoConfig ?
Ans: Autoconfig is Utility to configure your Oracle Application environment. .xml file is repository of all configuration from which AutoConfig picks configuration and polulates related files.
Q72. What is .lgi files ?
Ans: gi files are created with patching along with .log files . .lgi files are informative log files containing information related to patch. You can check .lgi files to see what activities patch has done. Usually informative logs.
Q73. How will you skip worker during patch ?
Ans: f in your adctrl there are six option shown then seventh is hidden option.(If there are seven options visible then 8th option is to Skip worker depending on ad version).
Q74. Which two tables created at start of Apps Patch & drops at end of Patch ?
Ans: FND_INSTALLED_PROCESSES &AD_DEFFERED_JOBS are the tables that get updated while applying a patch mainly d or unified driver.
Q75. How to compile an Oracle Reports file ?
Ans: Utility adrepgen is used to compile Reports. Synatx is given below
adrepgen userid=apps\ source = $PRODUCT_TOP\srw\filename.rdf dest=$PRODUCT_TOP\srw\filename.rdf stype=rdffile dtype=rdffile logfile=x.log overwrite=yes batch=yes dunit=character
Q76. What is difference between AD_BUGS & AD_APPLID_PATCHES ?
Ans: AD_BUGS holds information about the various Oracle Applications bugs whose fixes have been applied (ie. patched) in the Oracle Applications installation.
AD_APPLIED_PATCHES holds information about the "distinct" Oracle Applications patches that have been applied. If 2 patches happen to have the same name but are different in content (eg. "merged" patches), then they are considered distinct and this table will therefore hold 2 records.
Q77. What exactly happens when you put an Oracle Apps instance in maintenance mode ?
Ans: Maintenance mode provides a clear separation between normal runtime operation of Oracle Applications and system downtime for maintenance. Enabling the maintenance mode feature
a) shuts down the Workflow Business Events System and
b) sets up function security so that no Oracle Applications functions are available to users.
Used only during AutoPatch sessions, maintenance mode ensures optimal performance and reduces downtime when applying a patch. (Source Metalink Note: 233044.1)
Q78. What is profile options, What are various type of profile options ?
Ans:
Q79. If users complaining Oracle Applications 11i system is running slow , what all things you will check at broad level ?
Ans:
Q80. Why appsutil directory under Database ORACLE_HOME used for ?
Ans: All the template files, startup scripts , XML files are maintained here .
Q81. How to create User in Oracle Applications 11i ? Can you delete a User ?
Ans: New User can be created using security-->Define-->User menu. No , user cannot be deleted but can be end-dated.
Q82. What is Single Sign On ? ( If you are using portal 3.0.9 or 10G )?
Ans: As name says Single-Sign On Server is set of services (Software) which enables login to Application once which will allow you to login to Ppartner Applications with no need to login again. Lets assume I have configured single SSO Server for Portal , E-Business Suite, Collaboration Suite plus some other other applications, Now if I login to any one of them & after that if I wish to login to other applications I should be able to login without supplying passwords again.
Q83. How to configure portal with 11i ? ( If you are using portal 3.0.9 or 10G )?
Q84. What is content of dbc file & why its important ?
Ans: DBC file is quite important as whenever Java or any other program like forms want to connect to database it uses dbc file. Typical entry in dbc file is
GUEST_USER_PWD
APPS_JDBC_URL
DB_HOST
Q85. There are lot of dbc file under $FND_SECURE, How its determined that which dbc file to use from $FND_SECURE ?
Ans: This value is determined from profile option "Applications Database ID".
The name can be picked from s_dbc_file_name in XML file.
Q86. Info Regarding Inventory.
Ans: What is oraInventory ?
oraInventory is repository (directory) which store/records oracle software products & their oracle_homes location on a machine. This Inventory now a days in XML format and called as XML Inventory where as in past it used to be in binary format & called as binary Inventory.
There are basically two kind of Inventory Global Inventory (also called as Central Inventory) and Local Inventory also called as Oracle Home Inventory.
Global Inventory ?
Global Inventory holds information about Oracle Products on a Machine. These products can be various oracle components like database, oracle application server, collaboration suite, soa suite, forms & reports or discoverer server . This global Inventory location will be determined by file oraInst.loc in /etc (on Linux) or /var/opt/oracle (solaris). If you want to see list of oracle products on machine check for file inventory.xml under ContentsXML in oraInventory (Please note if you have multiple global Inventory on machine check all oraInventory directories)
You will see entry like
HOME NAME="ORA10g_HOME" LOC="/u01/oracle/10.2.0/db" TYPE="O" IDX="1"/
...
...
Local Inventory ?
Inventory inside each Oracle Home is called as local Inventory or oracle_home Inventory. This Inventory holds information to that oracle_home only.
Can I have multiple Global Inventory on a machine ?
- Quite common questions is that can you have multiple global Inventory and answer is YES you can have multiple global Inventory but if your upgrading or applying patch then change Inventory Pointer oraInst.loc to respective location. If you are following single global Inventory and if you wish to uninstall any software then remove it from Global Inventory as well.
What to do if my Global Inventory is corrupted ?
- No need to worry if your global Inventory is corrupted, you can recreate global Inventory on machine using Universal Installer and attach already Installed oracle home by option
-attachHome
./runInstaller -silent -attachHome -invPtrLoc $location_to_oraInst.loc
ORACLE_HOME="Oracle_Home_Location" ORACLE_HOME_NAME="Oracle_Home_Name"
CLUSTER_NODES="{}"
Do I need to worry about oraInventory during oracle Apps 11i cloning ?
- No, Rapid Clone will update both Global & Local Inventory with required information , you don't have to worry about Inventory during Oracle Apps 11i cloning.
Q87. What is the database holding Capacity of Oracle ?
- database holding capacity of oracle 9i is 512 pb(peta bytes)
- database holding capacity of oracle 10 g is 8 trillion tera bytes
Q88. How to find Operation System Version (Unix/Linux) ?
For solaris use command
uname -a
You will see output like
For Solaris SunOS servername 5.8 Generic_117350-23 sun4u sparc SUNW,Sun-Fire-V240
For RedHat Linux use command
cat /etc/*release*
You will see output like
Red Hat Enterprise Linux AS release 3 (Taroon Update 6)
Which means you are on Solaris 5.8 or Linux AS 3 resp.
Q89. How to find if your Operating System is 32 bit or 64 Bit ?
For solaris use command
isainfo -v
If you see out put like
32-bit sparc applications
That means your O.S. is only 32 bit but if you see output like
64-bit sparcv9 applications
32-bit sparc applications
above means your o.s. is 64 bit & can support both 32 & 64 bit applications
Q90. Can I run 64 bit application on 32 bit Operating system ?
You can run 32 bit application (like oracle application server, web server, all oracle application server are 32 bit ) on both 32 /64 bit operating system but a 64 bit application like 64 bit database can run only on 64 bit operating system.
Q91. How to find if your database is 32 bit or 64 bit(Useful in applying Patches) ?
execute "file $ORACLE_HOME/bin/oracle" , you should see output like
/u01/db/bin/oracle: ELF 64-bit MSB executable SPARCV9 Version 1
which means you are on 64 bit oracle
If your oracle is 32 bit you should see output like
oracle: ELF 32-bit MSB executable SPARC Version 1
Now you know what should be bit of patch to download
Ans: The wdbsvr.app is used by mod_plsql component of Apache to connect to
database. The File is located at $IAS_ORACLE_HOME/Apache/modplsql/cfg .
Q2. Where would i find .rf9 file, and what execatly it does ?
Ans: These files are used during restart of patch in case of patch failure because of some reason.
Q3. Where is appsweb.cfg or appsweb_$CONTEXT.cfg stored & why its used?
Ans: This file is defined by environment variable FORMS60_WEB_CONFIG_FILE This is usually in directory $OA_HTML/bin on forms tier. This file is used by any forms client session. When a user try to access forms , f60webmx picks up this file and based on this configuration file creates a forms session to user/client.
Q4. Can you clone from multi node system to single node system & vice versa ?
Ans: Yes.
Q5. What is .dbc file , there are lot of dbc file under $FND_SECURE, How its determined that which dbc file to use from $FND_SECURE ?
Ans: dbc as name says is database connect descriptor file which stores database connection information used by application tier to connect to database. This file is in directory $FND_TOP/secure also called as FND_SECURE
Q6. Whats things you do to reduce patch timing ?
Ans: # Merging patches via admrgpch
# Use various adpatch options like nocompiledb or nocompilejsp
# Use defaults file
# Staged APPL_TOP during upgrades
# Increase batch size (Might result into negative )
Q7. Can you apply patch without putting Applications 11i in Maintenance mode ?
Ans: Yes, use options=hotpatch as mentioned above with adpatch. from AD.I onwards we need to enable maintenance mode inorder to apply apps patches.
Q8. adident utility is used for what ?
Ans: adident utility in oracle apps is used to find version of any file . AD Identification.
for ex. "adident Header
Q9. How can you licence a product after installation ?
Ans: By using ad utility adlicmgr to licence product in Oracle Apps.
Q10. What is MRC ? What you do to enable MRC in Apps ?
Ans: MRC also called as Multiple Reporting Currency in oracle Apps. Default you have currency in US Dollars but if your organization operating books are in other currency then you as apps dba need to enable MRC in Apps.
Q11. What is access_log in apache , what entries are recored in access_log ? Where is default location of this file ?
Ans: access_log in Oracle Application Server records all users accessing oracle applications 11i. This file location is defined in httpd.conf with default location at $IAS_ORACLE_HOME/Apache/Apache/logs. Entries in this file is defined by directive LogFormat in httpd.conf Typical entry in access_log is
198.0.0.1 - - [10/Sep/2006:18:37:17 +0100] "POST /OA_HTML/OA.jsp?.... HTTP/1.1" 200 28035
where 200 is HTTP status code & last digits 28035 is bytes dowloaded as this page(Size of page).
Q12. What is session time out parameter & where all you define these values ?
Ans: In order to answer first you have to understand what kind of seesions are in Apps 11i and what is Idle timeout ?
In Apps there are two broad categories of session
- Self Service Application Session ( Server by Web Server iAS Apache & Jserv, like iRecruitment, iProcurement)
-Forms session ( served by your form session, like system Administrator)
What is Session Idle time ?
If Oracle Apps client is not doing any activity for some time (when application user goes for coffee or talks over phone) session during that time is called as Idle Session & because of security reason, performance issues and to free up system resource Oracle Applications terminates client session( both forms & self service) after idle time value is reached to the one mentioned in configuration file.
From FND.G or 11.5.9 or with introduction of AppsLocalLogin.jsp to enter into application, profile option "ICX Session Timeout" is used only to determine Forms Session Idle timeout value . This might be confusing as earlier this profile option used to control forms as well as self service application(with session.timeout) session.timeout is used to control Idle session timeout for Self Service Applications ( Served by Jserv via JVM )
From where ICX : Session Timeout & session.timeout get values ?
Autoconfig determines value for profile option "ICX: Session Timeout" and "session.timeout" from entry in context file ( $APPL_TOP/admin/SID_hostname.xml ) with parameter s_sesstimeout where value mentioned is in milliseconds so profile option ICX: Session Timeout value should be s_sesstimeout/ (1000 * 60) which means here its 10 Minutes. This value is also set in zone.properties in $IAS_ORACLE_HOME/Apache/Jserv where number mentioned is in milli second i.e. 600000 ( equal to 10 Minutes)session.timeout = 600000
session.timeout mentioned in zone.properties is in milli secondsICX Session Time out mentioned in profile option ICX: Session Timeout is in minutes so ICX session timeout=30 & session.timeout= 1800,000 are same 30 minutes
P.S. ICX Session time out was introduced in FND.D so if your FND version is below D you might not see this variable.
Important Things Apps DBA should consider while setting session timeout value ?
1.. If you keep session.timeout value too high , when some oracle application user accessing Self service application terminates
his session, so longer idle session will drain JVM resource & can result in Java.Lang No Memory available issues .
2. If you keep it too low, users going out for tea or sitting idle for some time have to login again into application & can be
annoying .
Thumb rule is session time out usually set to 30 minutes.
Q13. Where is applications start/stop scripts stored ?
Ans: $COMMON_TOP/admin/scripts/$CONTEXT_NAME
Q14. What are main configuration files in Web Server (Apache) ?
Ans: Main configuration files in Oracle Apps Web Server are
# httpd.conf, apps.conf, oracle_apache.conf, httpd_pls.conf
# jserv.conf, ssp_init.txt, jserv.properties, zone.properties
# plsql.conf, wdbsvr.app, plsql.conf
Q15. How to check if Apps 11i System is Autoconfig enabled ?
Ans: Under $AD_TOP/bin check for file adcfginfo.sh & if this exists use
adcfginfo.sh contextfile= show=enabled
If this file is not there , look for any configuration file under APPL_TOP if system is Autoconfig enabled then you will see entry like
# AutoConfig automatically generates this file. It will be read and .......
Q16. How to check if Oracle Apps 11i System is Rapid Clone enabled ?
Ans: For syetem to be Rapid Clone enabled , it should be Autoconfig enabled (Check above How to confirm if Apps 11i is Autoconfig enabled). You should have Rapid Clone Patches applied , Rapid Clone is part of Rapid Install Product whose Family Pack Name is ADX. By default all Apps 11i Instances 11.5.9 and above are Autoconfig & Rapid Clone enabled.
Q17. What is plssql/database cache?
Ans: In order to improve performance mod_pls (Apache component) caches some database content to file. This database/plssql cache is usually of type session & plsql cache
# session cache is used to store session information.
# plsql cache is used to store plsql cache i.e. used by mod_pls
Q18. How to determine Oracle Apps 11i Version ?
Ans: select RELEASE_NAME from fnd_product_groups;
You should see output like
RELEASE_NAME
-----------------------
11.5.9 or 11.5.10.2
Q19. What is RRA/FNDFS ?
Ans: Report Review Agent(RRA) also referred by executable FNDFS is default text viewer in Oracle Applications 11i for viewing output files & log files. As most of apps dba's are not clear about Report Server & RRA.
Q20. What is PCP in Oracle Applications 11i ? In what scenarios PCP is Used ?
Ans: PCP stands for parallel Concurrent processing.Usually you have one Concurrent Manager executing your requests but if you can configure Concurrent Manager running on two machines (Yes you need to do some additional steps in order to configure Parallel Concurrent Processing) . So for some of your requests primary CM Node is on machine1 and secondary CM node on machine2 and for some requests primary CM is on machine2 & secondary CM on machine1.
Scenario
********
Well If you are running GL Month end reports or taxation reports annually these reposrts might take couple of days. Some of these requests are very resource intensive so you can have one node running long running , resource intensive requests while other processing your day to day short running requets.
another scenario is when your requests are very critical and you want high resilience for your Concurrent Processing Node , you can configure PCP. So if node1 goes down you still have CM node available processing your requests.
Q21. Output & Logfiles for requests executed on source Instance not working on cloned Instance?
Ans: Here is exact problem description - You cloned an Oracle Apps Instance from PRODBOX to another box with Instance name say CLONEBOX on 1st of August. You can any CM logs/output files after 1st of August only becuase these all are generated on CLONEBOX itself, But unable to view the logs/output files which are prior to 1st August. What will you do & where to check ?
Log , Output file path & location is stored in table FND_CONCURRENT_REQUESTS. Check
select logfile_name, logfile_node_name, outfile_name, outfile_node_name from fnd_concurrent_requests where request_id=&requestid ;
where requestid is id of request for which you are not able to see log or out files. You should see output like
/u01/PRODBOX/log/l123456.req, host1,/u01/PRODBOX/out/o123456.out, host1 Update it according to your cloned Instance Variables.
Q22. How to confirm if Report Server is Up & Running ?
Ans: Report Server is started by executable rwmts60 on concurrent manager Node & this file is under $ORACLE_HOME/bin .execute command on your server like
ps -ef | grep rwmts60
You should get output like
applmgr ....... rwmts60 name=REP60_VISION
where VISION is your Instance name.
Else you can submit a request like "Active Users" with display set to PDF, check output & log file to see if report server can display PDF files.
Q23. What is difference between ICM, Std Managers & CRM in Concurrent Manager ?
Ans: # ICM stand for Internal Concurrent Manager, which controls other managers. If it finds other managers down , it checks & try to restart them. You can say it as administrator to other concurrent managers. It has other tasks as well.
# Standard Manager These are normal managers which control/action on the requests & does batch or single request processing.
# CRM acronym for Conflict Resolution Manager is used to resolve conflicts between managers & request. If a request is submitted whose execution is clashing or it is defined not to run while a particular type of request is running then such requests are actioned/assigned to CRM for Incompatibilities & Conflict resolution.
Q24. What is use of Apps listener ? How to start Apps listener ? How to confirm if Apps Listener is Up & Running ?
Ans: Apps Listener usually running on All Oracle Applications 11i Nodes with listener alias as APPS_$SID is mainly used for listening requests for services like FNDFS & FNDSM.
Start
******
In Oracle 11i, you have script adalnctl.sh which will start your apps listener. You can also start it by command
- lsnrctl start APPS_$SID (Replace sid by your Instance SID Name)
Confirm
********
execute below command
lsnrctl status APPS_$SID (replcae SID with your Instance Name)
so If your SID is VISION then use lsnrctl status APPS_VISION out put should be like
Services Summary...
FNDFS has 1 service handler(s)
FNDSM has 1 service handler(s)
The command completed successfully
Q25. What is Web Listener ?
Ans: Web Listener is Web Server listener which is listening for web Services(HTTP) request. This listener is started by adapcctl.sh & defined by directive (Listen, Port) in httpd.conf for Web Server. When you initially type request like http://becomeappsdba.blogspot.com:80 to access application here port number 80 is Web Listener port.
Q26. How will you find Invalid Objects in database ? How to compile Invalid Objects in database ?
Ans: using query
SQLPLUS> select count(*) from dba_objects where status like 'INVALID';
Compile
********
- using ADADMIN
- using utlrp.sql which is shipped with Oracle.
Q27. How to compile JSP in Oracle Apps ?
Ans: Using ojspCompile.pl perl script shipped with Oracle apps to compile JSP files. This script is under $JTF_TOP/admin/scripts. Sample compilation method is
perl -v ojspCompile.pl --compile --quiet
Q28. What is difference between adpatch & opatch ? Can you use both adpatch & opatch in Apps ?
Ans: Yes , we can use both adpatch and opatch in Apps. adpatch is an ad utility used for applying apps patches, whereas opatch is a utility used to apply rdbms patches.
Q29. Where will you find forms configuration details apart from xml file ? What is forms server executable Name ?
Ans: Forms configuration at time of startup is in script adfrmctl.sh and appsweb_$CONTEXT_NAME.cfg (defined by environment variable FORMS60_WEB_CONFIG_FILE) for forms client connection used each time a user initiates forms connection.
- f60srvm is the forms executable name.
Q30. What are different modes of forms in which you can start Forms Server and which one is default ?
Ans: There are two modes in which we can start forms.
- Socket Mode
- Servlet Mode.
By Default forms are configured to start in socket mode.
Q31. How you will start Discoverer in Oracle Apps 11i ?
Ans: In order to start dicoverer you can use script addisctl.sh under $OAD_TOP/admin/scripts/$CONTEXT_NAME
or startall.sh under $ORACLE_HOME/discwb4/util (under Middle/Application Tier)
Q32. How many ORACLE HOME are Oracle Apps and whats significance of each ?
Ans: There are three $ORACLE_HOME in Oracle Apps, Two for Application Tier (Middle Tier) and One in Database Tier.
# ORACLE_HOME 1 : On Application Tier used to store 8.0.6 techstack software. This is used by forms, reports & discoverer.
ORACLE_HOME should point to this ORACLE_HOME which applying Apps Patch.
# ORACLE_HOME 2: On Application Tier used by iAS (Web Server) techstack software. This is used by Web Listener &
contains Apache.
# ORACLE_HOME 3: On Database Tier used by Database Software usually 8i,9i or 10g database.
Q33. Where is HTML Cache stored in Oracle Apps Server ?
Ans: Oracle HTML Cache is available at $COMMON_TOP/_pages for some previous versions you might find it in $OA_HTML/_pages
Q34. Where is plssql cache stored in Oracle Apps ?
Ans: sually two type of cache session & plssql stored under $IAS_ORACLE_HOME/Apache/modplsql/cache
Q35. What happens if you don't give cache size while defining Concurrent Manager ?
Ans: Lets first understand what is cache size in Concurrent Manager. When Manager picks request from FND CONCURRENT REQUESTS Queues, it will pick up number of requests defined by cache size in one shot & will work on them before going to sleep. So in my views if you don't define cache size while defining CM then it will take default value 1, i.e. picking up one request per cycle.
Q36. What are few profile options which you update after cloning ?
Ans: Rapid clone updates profile options specific to site level . If you have any profile option set at other levels like server, responsibility, user....level then reset them.
- Site Name
Q39. How to retrieve SYSADMIN password ?
Ans: If forgot password link is enabled and sysadmin account is configured with mail id user forget password link else you can reset sysadmin password via FNDCPASS.
Q40. If you have done two node Installation, First machine : Database and concurrent processing server. 2nd machine: form,web Which machine have admin server/node?
Ans: Admin server will always reside on machine where Concurrent Processing Resides.
Q41. What is GWYUID, Where GWYUID defined & what is its used in Oracle Applications ?
Ans: GWYUID , stands for Gateway User ID and password. Usually like APPLSYSPUB/PUB
GWYUID is defined in dbc i.e. Database Connect Descriptor file . It is used to connect to database by think clients.
Q42. Whats is TWO_TASK in Oracle Database ?
Ans: TWO_TASK mocks your tns alias which you are going to use to connect to database. Lets assume you have database client with tns alias defined as PROD to connect to Database PROD on machine teachmeoracle.com listening on port 1521. Then usual way to connect is sqlplus username/passwd@PROD ; now if you don't want to use @PROD then you set TWO_TASK=PROD and then can simply use sqlplus username/passwd then sql will check that it has to connect to tnsalias define by value PROD i.e. TWO_TASK
Q43. What is difference between GUEST_USER_PWD (GUEST/ORACLE) & GWYUID ?
Ans: GUEST_USER_PWD(Guest/Oracle) is used by JDBC Thin Client where as GWYUID is used by Thick Clients like via Forms Connections.
Q44. How to check number of forms users at any time ?
Ans: Forms Connections initiate f60webmx connections so you can use
ps -ef | grep f60webmx | wc -l
Q45. What is 0 & Y in FNDCPASS, FNDLOAD or WFLOAD ?
Ans: 0 & Y are flags for FND Executable like FNDCPASS & FNDLOAD where
0 is request id (request ID 0 is assigned to request ID's which are not submitted via Submit Concurrent Request Form.
'Y' indicates the method of invocation. i.e. it is directly invoked from the command-line not from the Submit Request Form.
Q46. In a Multi Node Installation, How will you find which node is running what Services ?
Ans: You can query for table FND_NODES and check for column , SUPPORT_CP ( for Concurrent Manager) SUPPORT_FORMS ( for forms server) , SUPPPORT_WEB (Web Server), SUPPORT_ADMIN( Admin Server), and SUPPORT_DB for database tier.
You can also check same from CONTEXT File (xml file under APPL_TOP/admin)
Q47. If your system has more than one Jinitiator, how will the system know, which one to pick. ?
Ans: When client makes a forms connection in Oracle Applications, forms client session uses configuration file defined by environment variable FORMS60_WEB_CONFIG_FILE also called as appsweb config file. These days this file is of format appsweb_$CONTEXT.cfg The initiator version number defined by parameter jinit_ver_name in this file will be used
Q48. While applying Apps patch using adpatch, if you want to hide the apps password, how will that be possible ?
Ans: using flags=hidepw
Q49. What is importance of IMAP Server in Java Notification Mailer ?
Ans: IMAP stands for Internet Message Access Protocol and Java Notification mailer require IMAP server for Inbound Processing of Notification Mails.
Q50. What is difference between Socket & Servlet Mode in Apps Forms ?
Ans: When forms run SOCKET Mode these are dedicated connection between Client Machine & Form Server (Started by adfrmctl.sh). When Forms run in servlet mode the forms requests are fulfilled by Jserv in Apache . There will be additional JVM for Forms Request in that case and you won't start form via adfrmctl.sh.
Q51. a. How to find OUI version ?
b. How to find Database version ?
c. How to find Oracle Workflow Cartridge Release Version ?
d. How to find opatch Version ?
e. How to find Version of Apps 11i ?
f. How to Discoverer Version installed with Apps ?
g. How to find Workflow Version embedded in Apps 11i ?
h. How to find version of JDK Installed on Apps ?
Ans: OUI
***
OUI stands for Oracle Universal Installer. In order to find Installer version you have to execute ./runInstaller -help ( From OUI location)
You will get output like
Oracle Universal Installer, Version 10.1.0.4.0 Production Copyright (C) 1999, 2005, Oracle. All rights reserved.
That means OUI version in above case is 10.1.0.4
OUI location is $ORACLE_HOME/oui/bin
DB
**
select * from v$version;
Oracle Workflow
***************
Log in to the database as the owf_mgr user and issue
select wf_core.translate('WF_VERSION') from dual;
Opatch
*******
$ORACLE_HOME/OPatch/opatch version
Apps
****
select RELEASE_NAME from fnd_product_groups;
Discoverer
**********
Discoverer with Apps installed in ORACLE_HOME same as 806 is usually 3i or 4i. To find Version login to Application Tier & go to $ORACLE_HOME/discwb4/bin and execute
strings dis4ws | grep -i 'discoverer version'
Workflow embedded in 11i
************************
Run following SQL from apps user ;
SQL>select TEXT from WF_RESOURCES where NAME='WF_VERSION';
You should see output like
TEXT
-----------------------
2.6.0
Which means you are on Workflow Version 2.6.0
You can also use script wfver.sql in FND_TOP/sql to find version of workflow in Apps.
JDK in Apps
***********
There might be multiple JDK installed on Operating System . Like JDK 1.3.1, 1.4.2 or 1.5 but in order to find which Version of JDK your Apps is using
Open your Context File $SID_$HOSTNAME.xml under $APPL_TOP/admin and look for variable
JDK_TOP oa_var="s_jdktop" what so ever value assigned against that parameter go to that directory & cd bin & execute command
./java -version so lets assume entry above is /usr/jdk then cd /usr/jdk/bin & ./java -version , you will see output like
java version "1.4.2_10"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.4.2_10-b03)
Java HotSpot(TM) Client VM (build 1.4.2_10-b03, mixed mode)
Which means you are using JDK 1.4.2 in Oracle Applications 11i.
Q52. If by mistake you/someone deleted FNDLIBR can this executable be restored if Yes, How & if no, what will you do ?
Ans: Yes, you can restore FNDLIBR executables
Run adadmin on concurrent manager node
select option 2. Maintain Applications Files menu
then select 1. Relink Applications programs
when prompts for
Enter list of products to link ('all' for all products) [all]
select FND
when prompt for
Generate specific executables for each selected product [No] ? YES
select YES
& from list of executables select FNDLIBR
This will create new FNDLIBR executables.
Q53. What is .pls files which you see with apps ?
Ans: pls file stands for plsql files. In apps patch these files contain code to create package spec or package body or both.
Q54. What are .ldt & .lct files which you see in apps patch or with FNDLOAD ?
Ans: .ldt & .lct stands for Loader datafile & Loader configuration files, used frequently in migrating customization, profile options, configuration data, etc.. across Instances.
Q55. What are .odf file in apps patch ?
Ans: odf stands for Object Description Files used to create tables & other database objects.
Q56. What to find Form Server log files in forms ?
Ans: Form Server Start up log file default location is $OAD_TOP/admin/log/$CONTEXT_NAME/f60svrm.txt
Forms Run Time Diagnostics default location is $ORACLE_HOME/forms60/log/$CONTEXT_NAME
Q57. How to convert pll to pld file or pld file to pll ?
Ans: Pll->Pld f60gen module=MSCOSCW3.pll module_type=library userid=apps/ module_access=file output_file=MSCOSCW1.pld script=yes
Pld -> pll f60gen module=MSCOSCW3.pld userid=apps/ module_type=library module_access=file output_file=MSCOSCW1.pll parse=y batch=yes compile_all=special
Q58. Is APPS_MRC Schema exists for MRC in 11.5.10 and higher ?
Ans: No , apps_mrc schema is dropped with 11.5.10 Upgrade & 11.5.10 new Install. This is replaced by more Integrated Architecture.
Q59.If APPS_MRC schema is not used in 11.5.10 and higher then How MRC is working ?
Ans: For products like Payable, Recievables which uses MRC and if MRC is enabled then each transaction table in base schema related to currency now has an assoicated MRC Subtables.
Q60. When you apply C driver patch does it require database to be Up & Why ?
Ans: Yes , database & db listener should be Up when you apply any driver patch in apps. even if driver is not updating any database object connection is required to validate apps & other schema and to upload patch history information in database tables.
Q61. Can C driver in apps patch create Invalid Object in database ?
Ans: No , C driver only copies files in File System. Database Object might be invalidated during D driver when these objects are created/dropped/modified.
Q.62 Why does a worker fails in Oracle Apps Patch and few scenarios in which it failed for you ?
Ans: This question sounds stupid but this is asked quite often in Apps DBA Interview. Apps Patch worker can fail in case it doesn't find expected data, object, files or any thing which driver is trying to update/edit/modify. Possible symptoms may be underlying tables/objects are invalid, a prereq patch is missing , login information is incorrect, inconsistency in seeded data...
Q63. What is dev60cgi & f60cgi ?
Ans: cgi stands for Common Gateway Interface and these are Script Alias in Oracle Apps used to access forms server . Usually Form Server access directly via http://hostname:port/dev60cgi/f60cgi
Q64. What is difference between mod_osso & mod_ose in Oracle HTTP Server ?
Ans: mod_osso is Oracle Single Sign-On Module where as mod_ose is module for Oracle Servlet Engine.
mod_osso is module in Oracle's HTTP Server serves as Conduit between Oracle Apache Server & Singl Sign-On Server where as mod_ose is also another module in Oracle's HTTP Server serves as conduit between Oracle Apache & Oracle Servlet Engine.
Q65. What is difference between COMPILE_ALL=SPECIAL and COMPILE=ALL while compiling Forms ?
Ans: Both the options will compile all the PL/SQL in the resultant .FMX, .PLX, or .MMX file but COMPILE_ALL=YES also changes the cached version in the source .FMB, .PLL, or .MMB file. This confuses version control and build tools (CVS, Subversion, make, scons); they believe you've made significant changes to the source. COMPILE_ALL=SPECIAL does not do this.
Q66. What is ps -ef or ps command in Unix ? for work ex < 1 yr
Ans: ps is unix/linux utility or executable to find status of process. Used mainly to find if services/process is running or not.
Q67. What is GSM in Oracle application E-Business Suite ?
Ans: GSM stands for Generic Service Management Framework. Oracle E-Business Suite consist of various compoennts like Forms, Reports, Web Server, Workflow, Concurrent Manager ..
Earlier each service used to start at their own but managing these services (given that) they can be on various machines distributed across network. So Generic Service Management is extension of Concurrent Processing which manages all your services , provide fault tolerance (If some service is down ICM through FNDSM & other processes will try to start it even on remote server) With GSM all services are centrally managed via this Framework.
Q68. What is FNDSM ?
Ans: FNDSM is executable & core component in GSM ( Generic Service Management Framework discussed above). You start FNDSM services via APPS listener on all Nodes in Application Tier in E-Business Suite.
Q69. What is iAS Patch ?
Ans: iAS Patch are patches released to fix bugs associated with IAS_ORACLE_HOME (Web Server Component) Usually these are shiiped as Shell scripts & you apply iAS patches by executing Shell script. Note that by default ORACLE_HOME is pointing to 8.0.6 ORACLE_HOME and if you are applying iAS patch export ORACLE_HOME to iAS . You can do same by executing environment file under $IAS_ORACLE_HOME
Q70. If we run autoconfig which files will get effected ?
Ans: n order to check list of files changes during Autoconfig , you can run adchkcfg utility which will generate HTML report. This report will list all files & profile options going to change when you run AutoConfig.
Q71. What is difference between .xml file & AutoConfig ?
Ans: Autoconfig is Utility to configure your Oracle Application environment. .xml file is repository of all configuration from which AutoConfig picks configuration and polulates related files.
Q72. What is .lgi files ?
Ans: gi files are created with patching along with .log files . .lgi files are informative log files containing information related to patch. You can check .lgi files to see what activities patch has done. Usually informative logs.
Q73. How will you skip worker during patch ?
Ans: f in your adctrl there are six option shown then seventh is hidden option.(If there are seven options visible then 8th option is to Skip worker depending on ad version).
Q74. Which two tables created at start of Apps Patch & drops at end of Patch ?
Ans: FND_INSTALLED_PROCESSES &AD_DEFFERED_JOBS are the tables that get updated while applying a patch mainly d or unified driver.
Q75. How to compile an Oracle Reports file ?
Ans: Utility adrepgen is used to compile Reports. Synatx is given below
adrepgen userid=apps\ source = $PRODUCT_TOP\srw\filename.rdf dest=$PRODUCT_TOP\srw\filename.rdf stype=rdffile dtype=rdffile logfile=x.log overwrite=yes batch=yes dunit=character
Q76. What is difference between AD_BUGS & AD_APPLID_PATCHES ?
Ans: AD_BUGS holds information about the various Oracle Applications bugs whose fixes have been applied (ie. patched) in the Oracle Applications installation.
AD_APPLIED_PATCHES holds information about the "distinct" Oracle Applications patches that have been applied. If 2 patches happen to have the same name but are different in content (eg. "merged" patches), then they are considered distinct and this table will therefore hold 2 records.
Q77. What exactly happens when you put an Oracle Apps instance in maintenance mode ?
Ans: Maintenance mode provides a clear separation between normal runtime operation of Oracle Applications and system downtime for maintenance. Enabling the maintenance mode feature
a) shuts down the Workflow Business Events System and
b) sets up function security so that no Oracle Applications functions are available to users.
Used only during AutoPatch sessions, maintenance mode ensures optimal performance and reduces downtime when applying a patch. (Source Metalink Note: 233044.1)
Q78. What is profile options, What are various type of profile options ?
Ans:
Q79. If users complaining Oracle Applications 11i system is running slow , what all things you will check at broad level ?
Ans:
Q80. Why appsutil directory under Database ORACLE_HOME used for ?
Ans: All the template files, startup scripts , XML files are maintained here .
Q81. How to create User in Oracle Applications 11i ? Can you delete a User ?
Ans: New User can be created using security-->Define-->User menu. No , user cannot be deleted but can be end-dated.
Q82. What is Single Sign On ? ( If you are using portal 3.0.9 or 10G )?
Ans: As name says Single-Sign On Server is set of services (Software) which enables login to Application once which will allow you to login to Ppartner Applications with no need to login again. Lets assume I have configured single SSO Server for Portal , E-Business Suite, Collaboration Suite plus some other other applications, Now if I login to any one of them & after that if I wish to login to other applications I should be able to login without supplying passwords again.
Q83. How to configure portal with 11i ? ( If you are using portal 3.0.9 or 10G )?
Q84. What is content of dbc file & why its important ?
Ans: DBC file is quite important as whenever Java or any other program like forms want to connect to database it uses dbc file. Typical entry in dbc file is
GUEST_USER_PWD
APPS_JDBC_URL
DB_HOST
Q85. There are lot of dbc file under $FND_SECURE, How its determined that which dbc file to use from $FND_SECURE ?
Ans: This value is determined from profile option "Applications Database ID".
The name can be picked from s_dbc_file_name in XML file.
Q86. Info Regarding Inventory.
Ans: What is oraInventory ?
oraInventory is repository (directory) which store/records oracle software products & their oracle_homes location on a machine. This Inventory now a days in XML format and called as XML Inventory where as in past it used to be in binary format & called as binary Inventory.
There are basically two kind of Inventory Global Inventory (also called as Central Inventory) and Local Inventory also called as Oracle Home Inventory.
Global Inventory ?
Global Inventory holds information about Oracle Products on a Machine. These products can be various oracle components like database, oracle application server, collaboration suite, soa suite, forms & reports or discoverer server . This global Inventory location will be determined by file oraInst.loc in /etc (on Linux) or /var/opt/oracle (solaris). If you want to see list of oracle products on machine check for file inventory.xml under ContentsXML in oraInventory (Please note if you have multiple global Inventory on machine check all oraInventory directories)
You will see entry like
HOME NAME="ORA10g_HOME" LOC="/u01/oracle/10.2.0/db" TYPE="O" IDX="1"/
...
...
Local Inventory ?
Inventory inside each Oracle Home is called as local Inventory or oracle_home Inventory. This Inventory holds information to that oracle_home only.
Can I have multiple Global Inventory on a machine ?
- Quite common questions is that can you have multiple global Inventory and answer is YES you can have multiple global Inventory but if your upgrading or applying patch then change Inventory Pointer oraInst.loc to respective location. If you are following single global Inventory and if you wish to uninstall any software then remove it from Global Inventory as well.
What to do if my Global Inventory is corrupted ?
- No need to worry if your global Inventory is corrupted, you can recreate global Inventory on machine using Universal Installer and attach already Installed oracle home by option
-attachHome
./runInstaller -silent -attachHome -invPtrLoc $location_to_oraInst.loc
ORACLE_HOME="Oracle_Home_Location" ORACLE_HOME_NAME="Oracle_Home_Name"
CLUSTER_NODES="{}"
Do I need to worry about oraInventory during oracle Apps 11i cloning ?
- No, Rapid Clone will update both Global & Local Inventory with required information , you don't have to worry about Inventory during Oracle Apps 11i cloning.
Q87. What is the database holding Capacity of Oracle ?
- database holding capacity of oracle 9i is 512 pb(peta bytes)
- database holding capacity of oracle 10 g is 8 trillion tera bytes
Q88. How to find Operation System Version (Unix/Linux) ?
For solaris use command
uname -a
You will see output like
For Solaris SunOS servername 5.8 Generic_117350-23 sun4u sparc SUNW,Sun-Fire-V240
For RedHat Linux use command
cat /etc/*release*
You will see output like
Red Hat Enterprise Linux AS release 3 (Taroon Update 6)
Which means you are on Solaris 5.8 or Linux AS 3 resp.
Q89. How to find if your Operating System is 32 bit or 64 Bit ?
For solaris use command
isainfo -v
If you see out put like
32-bit sparc applications
That means your O.S. is only 32 bit but if you see output like
64-bit sparcv9 applications
32-bit sparc applications
above means your o.s. is 64 bit & can support both 32 & 64 bit applications
Q90. Can I run 64 bit application on 32 bit Operating system ?
You can run 32 bit application (like oracle application server, web server, all oracle application server are 32 bit ) on both 32 /64 bit operating system but a 64 bit application like 64 bit database can run only on 64 bit operating system.
Q91. How to find if your database is 32 bit or 64 bit(Useful in applying Patches) ?
execute "file $ORACLE_HOME/bin/oracle" , you should see output like
/u01/db/bin/oracle: ELF 64-bit MSB executable SPARCV9 Version 1
which means you are on 64 bit oracle
If your oracle is 32 bit you should see output like
oracle: ELF 32-bit MSB executable SPARC Version 1
Now you know what should be bit of patch to download
Thursday, January 25, 2007
Starting and Stopping Oracle Grid Control
This is a very straight forward process to start and stop Oracle Grid Control processes and the database.
To Stop Oracle Grid Control:
$OMS_HOME/opmn/bin/opmnctl stopall
$OMA_HOME/bin/emctl stop agent
$OMS_HOME/bin/emctl stop oms
$ORACLE_HOME/bin/sqlplus /nolog <<EOF1
connect / as sysdbashutdown immediate
EOF1
$ORACLE_HOME/bin/lsnrctl stop
To Start Oracle Grid Control:
$ORACLE_HOME/bin/lsnrctl start
sleep 15$ORACLE_HOME/bin/sqlplus /nolog <<EOF1
connect / as sysdbastartup
EOF1
sleep 15
$OMA_HOME/bin/emctl start agent
$OMS_HOME/bin/emctl start oms
$OMS_HOME/opmn/bin/opmnctl startall
To Stop Oracle Grid Control:
$OMS_HOME/opmn/bin/opmnctl stopall
$OMA_HOME/bin/emctl stop agent
$OMS_HOME/bin/emctl stop oms
$ORACLE_HOME/bin/sqlplus /nolog <<EOF1
connect / as sysdbashutdown immediate
EOF1
$ORACLE_HOME/bin/lsnrctl stop
To Start Oracle Grid Control:
$ORACLE_HOME/bin/lsnrctl start
sleep 15$ORACLE_HOME/bin/sqlplus /nolog <<EOF1
connect / as sysdbastartup
EOF1
sleep 15
$OMA_HOME/bin/emctl start agent
$OMS_HOME/bin/emctl start oms
$OMS_HOME/opmn/bin/opmnctl startall
Wednesday, January 25, 2006
How to Change Oracle Grid Control sysman password
To change the Sysman password:
1. Stop the OMS instances that are associated with the repository
a. opmnctl stopall
2. Change the sysman password in the database:
a. Logon to sqlplus as a dba user
b. Issue the command: alter user sysman identified by newpassword;
c. Exit Sqlplus
3. On each management server host, cd to the OMS $ORACLE_HOME/sysman/config directory
a. backup the emoms.properties file
b. edit the emoms.properties file and modify the parameters;
eml.mntr.emdRepPwd=new_password
oracle.sysman.eml.mntr.emdRepPwdEncrypted=FALSE
NOTE: When you restart the OMS, the FALSE setting will change to TRUE and the password will become encrypted in the file
4. Still on Management Repository host, cd to the AGENT_HOME/bin and stop the agent:
./emctl stop agent
5. Next, cd to the AGENT_HOME/sysman/emd directory
a. Edit the targets.xml file and modify the oracle_emrep target definition with the following in bold:
b. Save the file. The TRUE value will change to FALSE and the newpassword will become encrypted when you restart the Agent.
6. Issue the command (from the Agent O_H/bin):
./emctl start agent
7. Restart each of the OMS's
emctl start oms
8.Start the OMS instances that are associated with the repository
opmnctl startall
1. Stop the OMS instances that are associated with the repository
a. opmnctl stopall
2. Change the sysman password in the database:
a. Logon to sqlplus as a dba user
b. Issue the command: alter user sysman identified by newpassword;
c. Exit Sqlplus
3. On each management server host, cd to the OMS $ORACLE_HOME/sysman/config directory
a. backup the emoms.properties file
b. edit the emoms.properties file and modify the parameters;
eml.mntr.emdRepPwd=new_password
oracle.sysman.eml.mntr.emdRepPwdEncrypted=FALSE
NOTE: When you restart the OMS, the FALSE setting will change to TRUE and the password will become encrypted in the file
4. Still on Management Repository host, cd to the AGENT_HOME/bin and stop the agent:
./emctl stop agent
5. Next, cd to the AGENT_HOME/sysman/emd directory
a. Edit the targets.xml file and modify the oracle_emrep target definition with the following in bold:
b. Save the file. The TRUE value will change to FALSE and the newpassword will become encrypted when you restart the Agent.
6. Issue the command (from the Agent O_H/bin):
./emctl start agent
7. Restart each of the OMS's
emctl start oms
8.Start the OMS instances that are associated with the repository
opmnctl startall
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