Oracle Apps DBA Interview Questions – VI
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Q:
Why we need to put maintenance mode when we are applying a patch ?
A:
Maintenance mode provides a clear separation between normal runtime operation
of Oracle Applications and system downtime for
maintenance.
Enabling the maintenance mode feature shuts down the Workflow Business Events
System and 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. For more information,
refer to Preparing your System for Patching
in
Oracle Applications Maintenance Utilities.
Q:
After applying patch why we need to take snapshot and what is the use of it ??
A:
Snapshot is a view of the system at specific time. In apps, Patch Wizard uses
Global snapshot to determine which patches have
been
applied to the system and Autopatch uses APPL_TOP snapshot to determine what
patches have been applied to that APPL_TOP.
Snapshot
actually records the list of files,file versions and bug fixes. Both snapshot are
views, they are created once during
installation
and then updated during patching. APPL_TOP snapshot information is stored in
the AD_SNAPSHOTS, AD_SNAPSHOT_FILES, and
AD_SNAPSHOT_BUGFIXES
tables
Q:
Whether we can apply 2 patches at a time without merging them, why ??
A:
We can’t apply 2 patches at a time because when patch started it will create 2
tables in db (AD_DEFERRED_JOBS AND
FND_INSTALL_PROCESSES).
If you apply patches at a time both will try to create those 2 tables in db, so
both will fail.
Q.
After applying patch whether we can revert it back ?
A:
No, as it is going to update some tables in db.
Q.
Whether we need to run adpreclone everytime when we clone, why ?
A:
We have to run adpreclone if there are changes in any customizations or any
other tablespaces like if applied any AD patches,
Big
Patches, Minipacks, ATG patches, Tech Stack, and AD Patches. If there are no
changes, then i don’t think there is any need to
preclone
it again.
Example:
When you run adpreclone.pl, it essentially does an “alter database backup
controlfile to trace” and stores the information from
that
in a file within ${ORACLE_HOME}/appsutil. This represents all of the datafiles
in the database at that particular time. The information
gathered
at this time represents the state of the source at this time. If you does not
run adpreclone.pl again when u do clone next time,
Your
backup (your target) represents an earlier time (prior to the addition of that
datafile), so the “create controlfile” step
that
adcfgclone is doing is going to fail.
Q:
Which files it will call when we run adcmctl.sh start apps/apps ?
A:
It will call FNDLIBR executable, which will be located in $FND_TOP/bin.
Q:
What are the main tables related to concurrent manager ?
A:
FND_NODES
FND_CONCURRENT_PROCESSES
(fcproc)
FND_CONCURRENT_REQUESTS
(fcr)
FND_CONCURRENT_QUEUES
(fcq)
FND_CONCURRENT_PROGRAMS
(fcprog)
FND_EXECUTABLES
FND_CP_SERVICES
FND_CONCURRENT_QUEUE_SIZE
FND_CONCURRENT_QUEUE_CONTENT
FND_CONCURRENT_PROGRAM_SERIAL
FND_CONCURRENT_TIME_PERIODS
FND_CONCURRENT_PROCESSORS
Q:
What is FNDFS ??
A:
Report Review Agent(RRA) also referred by executable FNDFS is default text
viewer in Oracle Applications 11i for viewing
output
files and log files. As most of Applications DBA’s are not clear about Report
Server and RRA.
Q:
What is FNDSM ?? It has seperate name, what it is ?
A:
FNDSM is executable & core component in GSM. 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.
Q:
How to check whether ICM is up and running from backend ?
A:
ps -ef | grep LIB
ps
–ef | grep CPMGR
ps
–ef | grep FNDCPMBR
$FND_TOP/sql/afcmstat.sql
— Displays all the defined managers, their maximum capacity, pids, and their
status.
afimchk.sql
— Displays the status of ICM and PMON method in effect, the ICM’s log file, and
determines if the concurrent manger
monitor
is running.
afcmcreq.sql
— Displays the concurrent manager and the name of its log file that processed a
request.
afrqwait.sql
— Displays the requests that are pending, held, and scheduled.
afrqstat.sql
— Displays of summary of concurrent request execution time and status since a
particular date.
afqpmrid.sql
— Displays the operating system process id of the FNDLIBR process based on a
concurrent request id. The process id
can
then be used with the ORADEBUG utility.
afimlock.sql
— Displays the process id, terminal, and process id that may be causing locks
that the ICM and CRM are waiting to
get.
You should run this script if there are long delays when submitting jobs, or if
you suspect the ICM is in a gridlock with
another
oracle process.
Q:
Which component is responsible for PCP failover ?
A:
When PCP is enabled, can you check that FNDSM is running on all your CCM nodes?
That process is mainly reponsible to getting
the
failovers to happen and also start up CCMs
Q:
Where custom top information will be there ?
A:
$APPL_TOP/APPLSYS.env file.
Q:
What will happen when we run adpreclone ?
A:
It will collect all info of the environment and store in seperate template
files.
Q:
Which two parameters are required when we do clone using RMAN ?
A:
DB_FILE_NAME_CONVERT and LOG_FILE_NAME_CONVERT
Q:
How to clean FND_NODES table?
A:
EXEC FND_CONC_CLONE.SETUP_CLEAN.
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Posted in Oracle Apps DBA Interview
Questions
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1.
What is the pre-req for applying a rdbms patch?
Ans
: OraInventory should be set in file oraInst.loc @/var/opt/oracle or /etc
2.
What is OraInventroy?
Ans:
The oraInventory is the location for the OUI (Oracle Universal Installer)’s
bookkeeping. The orainventory stores information about: All Oracle software
products installed in all ORACLE_HOMES on a machine Other non-Oracle products,
such as the Java Runtime Environment (JRE). In a 11i Application system
the RDBMS and iAS ORACLE_HOMEs are registered in the oraInventory. The 806
ORACLE_HOME, which is not managed through OUI, is not.
3.
What are different types of inventories?
Ans:
The Global orainventory (or Central inventory) The Local inventory (or Home
inventory)
4.
What is Global orainventory?
Ans
: The Global oraInventory is the part of the XML inventory that contains the
high level list of all oracle products installed on a machine. There should therefore
be only one per machine. Its location is defined by the content of
oraInst.loc.The Global OraInventory records the physical location of Oracle
products installed on the machine, such as ORACLE_HOMES (RDBMS and IAS) or JRE.
It does not have any information about the detail of patches applied to each
ORACLE_HOMEs.The Global OraInventory gets updated every time you install or
de-install an ORACLE_HOME on the machine, be it through OUI Installer, Rapid
Install, or Rapid Clone.
Note:
If you need to delete an ORACLE_HOME, you should always do it through the OUI
de-installer in order to keep the Global OraInventory synchronized.
5.
What is local Orainventory?
Ans
: There is one Local OraInventory per ORACLE_HOME. It is physically located
inside the ORACLE_HOME at $ORACLE_HOME/inventory and contains the detail of the
patch level for that ORACLE_HOME.The Local OraInventory gets updated whenever a
patch is applied to the ORACLE_HOME, using OUI.
6.
What is rapid clone?
Ans
: Rapid Clone is the new cloning utility introduced in Release 11.5.8. Rapid
Clone leverages the new installation and configuration technology utilized by
Rapid Install
7.
How do I determine if my system is rapid clone enabled?
Ans
: First, verify that your system is AutoConfig enabled. Then, verify that you
have applied the latest Rapid Clone patch.
8.
Explain the cloning process?
Ans
:
1.
Run adpreclone as applmgr and oracle user on source Perl adpreclone.pl dbTier
as oracle user Perl adpreclone.pl appsTier as applmgr user
2.
Take the cold/hotbackup of source database
3.
Copy the five directories appl,comn,ora , db,data to target
4.
Rename the directories, and change the permisssion
5.
Set the inventory in oraInst.loc
6.
Run perl adcfgclone.pl dbTier as oracle user,if the backup type is cold
7. If
the backup type is hotbackup then Perl adcfgclone.pl dbTechStack. Create the
control file on target from the control script trace file from source Recover
the database Alter database open resetlogs
8.
Run autoconfig with the ports changed as per requirement in xml.
9.
Run perl adcfgclone.pl appsTier as applmgr
10.
Run autoconfig with the ports changed as per requirement in xml.
9.
What is the location of adpreclone.pl for oracle user?
Ans
: RDBMS_ORACLE_HOME/appsutil/scripts/
10.
What is the location of adpreclone.pl for applmgr user?
Ans
: $COMMON_TOP/admin/scripts/
11.
What is the location of adcfgclone.pl for oracle user?
Ans
: $RDBMS_ORACLE_HOME/appsutil/clone/bin
12.
What is the location of adcfgclone.pl for applmgr user?
Ans
: $COMMON_TOP/clone/bin
13.
What is statspack?
Ans
: Statspack is a database utility to gather database and session level
performance information.
14.
How to install statspack?
Ans
: Run the script spcreate.sql @RDBMS_ORACLE_HOME/rdbms/admin
Note
more details on statspack refer metalink noteid: 149113.1
15.
How to enable trace at database level?
Ans
: set init.ora parameter sql_trace
16.
How to enable trace for a session?
Ans:
Alter system set sql_trace=true;
Execute
the sql query
Alter
system set sql_trace=false;
This
will create a trace file at
$RDBMS_ORACLE_HOME/admin/contextname/udump
with the spid of the current sql session.
17.
How to enable trace for other session?
Ans
: exec sys.dbms_system.set_sql_trace_in_session(sid,serial#,true/false)
Eg:
To enable trace for sql session with sid 8SQL> exec
sys.dbms_system.set_sql_trace_in_session(8,121,true);
PL/SQL
procedure successfully completed.
To
disable trace
SQL>
exec sys.dbms_system.set_sql_trace_in_session(8,121,false);
18.What
is the location of inint.ora ?
Ans
: $RDBMS_ORACLE_HOME/dbs
19.
What is that trace files contains and the utiliy used to read them?
Ans
: Trace file contains the detail diagnostics of a sql statement like explain
plan, physical reads, logical reads, buffer gets etc. Tkprof utility is used to
convert trace file into readable format.
20.
What is the syntax for tkprof?
Ans:
tkprof explain=apps/ sys=no
21.How
do we find adpreclone is run in source or not ?
Ans
: If clone directory exists under RDBMS_ORACLE_HOME/appsutil for oracle user
and $COMMON_TOP for applmgr user.
23.
How to find trace file for a given concurrent request id?
Ans
: Go to $RDBMS_ORACLE_HOME/admin//udump
grep
“ “ *
24.
What is a database link? How to create it?
Ans
: If we want to access objects of another database from this database then we
need a database link from this database to the other.
1.Login
as oracle user
2.sqlplus
“/as sysdba”
3.
create database link connect to identified by using ”;
Ex
SQL>
create database link TEST1_TO_TEST2 connect to apps identified by apps using
‘TEST2’;
Database
link created.
SQL>
select name from v$database@ TEST1_TO_TEST2;
NAME
———
TEST2
SQL>select
db_link from dba_db_links;
4.
Add destination database tns entry in tnsnames.ora
25.
How many clonings u have done?
Ans
: If u r very much confident on cloning processes then say 5 to 8 otherwise
just 2 or 3.
26.
What u know abt RMAN?
Ans
: If u r good at RMAN then say yes, otherwise say we are not using RMAN for
backup/recovery , why because we are using netapp snap technology for backups.
27.
What is netapp?
Ans
: Netapp is a storage technology.
28.
What is formserver url?
29.
What is jinitiator?
Ans
: Oracle jinitiator is the one which provide the required jvm to run forms
interface/applet. When we access forms applet first time , oracle jinitiator
will be installed automatically.
30.
What is discoverer server?
Ans
: Discoverer server is reporting tools which allows novoice user to use oracle
application reports. Discoverer will come along with oracle applications when
installed.
31.
What is discoverer viewer url?
Ans:
/discoverer4i/viewer152. What is discoverer plus url?
Ans
: Ans : Aoljtest is a web based utility to test the availability of the
different components of oracle applications like jserv,modplsql,jsp,forms etc
URL:
/OA_HTML/jsp/fnd/aoljtest.jsp
32.
What is adsplicer?
Ans
: Adsplicer is a uitility used to register off cycle products.
34.
What is tnsping?
Ans
: tnsping is command used to check the connectivity to the database server node
from other nodes.
Ex:
tnsping
Note:
Tns entry should be there in tnsnames.ora for the database we are trying to
work this command.
35.
How to compile a form using f60gen?Ans :
f60gen
module=/TEST/testappl/au/11.5.0/forms/F/ARXTWMAI.fmb userid=APPS/APPS
output_file=/TEST/testappl/ar/11.5.0/forms/F/ARXTWMAI.fmx module_type=form
batch=yes compile_all=special
36.
What is APPLPTMP environment variable?
Ans
: This is the temporary file location for the pl/sql temp files. If this
variable was not set then the concurrent programs may errored out. 161. What is
mean by enabling maintanance mode?
Ans
: Maintanance mode is the adadmin option introduced from AD.I. When maintanance
mode is enabled user may able to login to application but they only get profile
option in the frontend navigation menu.
37.
Is that necessary to enable maintanance mode while applying a patch?
Ans
: We can even apply a patch without enabling maintanance mode with the
following option
Adpatch
options=hotpatch
38.
How to find out oracle application framework version?
Ans
: 1. Through aoljtest2. cd $COMMON_TOP/html/3. adident Header OA.jsp
39.
How to find out what are the rdbms patches applied to an oracle home?
Ans:
1.
opatch lsinventory
2.
$RDBMS_ORACLE_HOME/.patch_storage directory contains the directories with the
rdbms patch number, which are applied to this oracle home.
165.
Is that necessary to shutdown database while applying a database patch?
Ans
: Yes.
40.
What is the command line utility to submit a concurrent request?
Ans
: CONSUB
41.
What is the significance of utl_file_dir parameter in init.ora file?
Ans
: The value of this parameter is the group of directories to which u r database
can write, means u r database packages have permission to write to flat files
in these directories.
42.
How you will find out discoverer version?
Ans
: cd $806_ORACLE_HOME/discwb4/lib strings libd* grep ‘Version:’
43.
While applying a rdbms patch using opatch you are getting the error, unable to
read inventory/inventory is corrupted/ORACLE_HOME is not not registered, what
you will do, and how you will apply the patch?
Ans:
We will check the inventory directory permission, try to apply the patch after
giving 777 permissions to that inventory directory. If still it won’t work we
will apply patch with the following command:
Opatch
apply no_inventory
44.
Have you applied rdbms patches and for what?
Ans
: We got ORA-7445 error in alert log, for which oracle recommended to apply a
rdbms patch.
45.
What are the patch errors , you have encountered?
Ans
:
1)Patch
fails with the error, unable to generate perticular form, do u want to
continue. We continue patching by saying “yes”, then we manually regenarate the
form using f60gen utility.
2)
Unable to generate jar files under JAVA_TOP AutoPatch error: Failed to generate
the product JAR files Solution:Run adjkey -initialize ———–to creat
identitydb.obj file which will beused by adjava to sign jar files.
46.
What is adjkey? What files it will create?
Ans
: adjkey is an adutility which will create digital signature, which will be
used to sign all t” admin?
mailto:adsign.txt@APPL_TOP>adsign.txt@APPL_TOP/adminappltop.cer@APPL_TOP/adminidentitydb.obj@applmgr
home
48.
What are the clone errors, you have encountered?
Ans
: Error:
RC-50013:
Fatal: Failed to instantiate
driver/u01/fms2c/appfms2c/fms2cora/iAS/appsutil/driver/instconf.drvCauseThe
source instance has files that adpreclone flags as ‘autoconfigable’ but in
reality they are not. So adpreclone.pl adds these files into the instconf.drv.
Then when adcfgclone.pl is run on target it looks for the template file to
instantiate for these files and since there isn’t a template file adcfgclone.pl
fails. SolutionModify the target’s instconf.drv and remove the offending lines.
Then rerun adcfgclone.pl
49.
What are the real time problems you have encountered and how you trouble
shooted that?
Ans:1.
Concurrent Program is erroing out with snapshot too old error. To resolve this
we have added space to temp tablespace.2. Concurrent Program is erroing out
with unable to extent a perticular tablespace by so and so extents. To resolve
this we have added on more data file to that tablespace.3. When we are trying
to start apache with adapcctl.sh script after a autoconfig run, its saying that
“node id is not matching with the application server id”. To resolve this we
have updated the server id column in fnd_nodes table with the server id value
in dbc file.
50.
How you will find workflow version?
Ans
: Run wfver.sql@FND_TOP/sql script as apps user
51 .
When forms are running in servlet mode then the environment variables required
for forms must be defined in what file and its location?
Ans
: formsservlet.ini@$APACHE_TOP/Jserv/etc.
54.
How to validate that sysadmin password is correct or not from backend?
Ans:
select fnd_web_sec.validate_login(‘SYSADMIN’,’Qwert8765′) from dual;
55.
How to compile jsp’s(other than from adadmin)?
Ans:
Force compilation of all jsps using the following command ojspCompile.pl
–compile –flush
56.
How to rotate logs for apache logs?
Ans:
Using rotatelogs executable in httpd.conf file. Use Errorlog for error_log file
rotation. Transferlog for other log files.
57.
Other way of checking whether MRC is enabled or not besides using adadmin?
Ans
: select multi_currency_flag from fnd_product_groups;
58.
How to compile rdf?
Ans:
Either using adadmin or rwcon60
59.
How to change file/directory owner in linux/solaris?
Ans
: chown – R :
Ex:
chown – R applmgr:dba testappl
60.
How to change the permission of file/directory in linux/solaris?
Ans
: chmod –R
Ex
: chmod –R 755 testappl
61.
What are the files which contain apps password?
Ans
:
1.
wdbsrv.app@IAS_ORACLE_HOME/Apache/modplsql/cfg
2.
CGIcmd.dat@806_ORACLE_HOME/reports60/server
3.
wfmail.cfg@FND_TOP/resource – optional
4.
CatalogLoader.conf@OA_JAVA – optional
5.
CatalogLoader.xml@OA_HTML – optional
62.
What is the script to find out ICM status?
Ans
: afimchk.sql@FND_TOP/sql
63.
What is the script to list the concurrent request status?
Ans:
afrqrun.sql@FND_TOP/sql
64.
What is the script that Lists managers that currently are running a request?
Ans
: afcmrrq.sql@FND_TOP/sql
65. How
can I determine whether a template is customizable or non-customizable?
Ans
: If a keyword “LOCK” is present at the end of the file entry in the respective
driver, then it is a non-customizable template. If the “LOCK” keyword is not
seen, then that template can be customized.
66. How
to find out JDBC version :
Ans
: In the middle tier, edit the jserv.properties file located in the
IAS_ORACLE_HOME/Apache/Jserv/etc directory- Locate the wrapper.classpath that
is pointing to the jdbc zip file/opt/oracle/apps/$TWO_TASK/comn/java/jdbc14.zip
67.
How to findout XML Parser Version
Ans
: SQL> select WF_EVENT_XML.XMLVersion() XML_VERSION from sys.dual;
68.
How to find out WorkFlow Version
Ans
:
SQL>
select TEXT Version from WF_RESOURCES where TYPE = ‘WFTKN’ and NAME =
‘WF_VERSION’;
69.
How to find a file version in Application DB:
select
v.version,v.CREATION_DATE,c.CREATION_DATE from AD_FILES c,AD_FILE_VERSIONS v
where c.FILENAME like ‘ARPURGEB.pls’ AND c.file_id = v.file_id AND
c.app_short_name = ‘AR’;
When
a copy driver (C) or the copy portion of a unified driver (U) are aborted for
any reason, upon reapplying, the CREATION_DATE and/or LAST_UPDATE_DATE columns
in the patching history tables (Ex: AD_FILE_VERSIONS)are not updated to show
the proper installation date but are left with the 01-01-1950 date. you can
resolve the issuse by applying the latest ad.I patch.
70.
How to check whether the product is install,shared and Not installed in
Apps.?
Ans
:
SQL>select
t.application_name, t.application_id, i.patch_level, decode(i.status,’I’,’Fully
Installed’,‘N’,’Not Installed’,’S’,’Shared’,’Undetermined’) statusfrom
fnd_product_installations i, fnd_application_vl twhere i.application_id =
t.application_idorder by t.application_id;
==================================================================================================================
Oracle
Applications Question Answer
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Posted in Oracle Apps DBA Interview
Questions
Oracle
Apps DBA Interview Questions – IV
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5.
How you will change apps password?
Ans:
FNDCPASS 0 y apps/ system/ SYSTEM APPLSYS
6.
What if apps password is changed with alter command?
Ans
: Applications won’t work.
7.
What is the difference between alter and FNDCPASS in changing apps password?
Ans
: FNDCPASS will update some fnd tables other than standard tables.
8.
Where the FNDCPASS utility is located?
Ans
: Concurrent node @FND_TOP/bin
9.
How to find out what component of u r oracle applications were installed on
which node?
Ans
: Xml file (context file)
10.
How to find the version of httpd/Apache web server?
Ans
: $IAS_ORACLE_HOME/Apache/bin/httpd –version
11.
What is the configuration file for httpd and what is the location of it ?
Ans
: httpd.conf @IAS_ORACLE_HOME/Apache/Apache/conf
12.
Where you will see when you have some problem with u r webserver(httpd/Apache)?
Ans
: access_log & error_log @IAS_ORACLE_HOME/Apache/Apache/logs
13.
When Apache starts what other components its start ?
Ans
: PL/SQL Listener, Servlet Engine, OJSP Engine
14.
What is jserv?
Ans
: jserv is nothing but servlet engine which will run u r servlets. It’s a
module of apache which supports servlets.
15.
What is self service application?
Ans
: Whatever part of u r oracle application u r able to see through web browser
is self service.
16.
Where u will see when u r not able to get self service applications?
Ans
: access_log,error_log, error_pls, jserv.log, wdbsvr.app(for apps password)
17.
What is the location of jserv.log?
Ans
: IAS_ORACLE_HOME/Apache/Jserv/log
18.
What is the location of wdbsvr.app ?
Ans
: IAS_ORACLE_HOME/Apache/modplsql/cfg
19.
What are jserv.conf and jserv.properties files?
Ans
: These are the configuration files which were used to start jvm’s(servlet
engine) by apache.
20.
What is mean by clearing cache and bouncing apache?
Ans
:
1.
Stop apache (adapcctl.sh stop apps)
2.
Clear cache – Go to $COMMON_TOP/html/_pages and delete _oa_html directory
(rm
–r _oa__html)
3.
Start apache (adapcctl.sh start apps)
21.
What is forms configuration file and its location?
Ans
: appsweb_contextname.cfg @$COMMON_TOP/html/bin
22.
What are the different modes u can start u r form server?
Ans
: socket and servlet
23.
What is the difference beween socket and servlet mode?
Ans
:
In
socket mode forms sessions are represented by f60webmx
In
servlet mode forms sessions are represented by apache processes.
24.
What is forms metric server and client?
Ans
: When there are more than one form sever instances then forms metric server
and clinet will be used to load balance.
25.
Where the forms server related errors will be logged?
Ans
: access_log and error_log
26.
What is report server configuration and log file name and its location?
Ans
: Configuration file – REP_.ora
Log
file – REP_.log @806_ORACLE_HOME/reports60/server
27.
What is CGIcmd.dat file and its location?
Ans
: CGIcmd.dat file is the run time parameter file the report server located @
806_ORACLE_HOME/reports60/server
28.
What is the significance of DISPLAY variable?
Ans
: Vnc server should be up and running at the specified port value in DISPLAY
variable, otherwise reportserver may not able to show the graphics in Reports.
29.
Where is the concurrent manager log file located?
Ans
: $COMMON_TOP/admin//log or $APPLCSF/$APPLLOG
30.
Is apps password necessary to start all the components of oracle application?
Ans
: No. Only to start/stop concurrent managers apps password is needed.
31.
What is a concurrent manager?
Ans
: A concurrent manager is one which runs concurrent requests.
32.
What are the different types of concurrent managers?
Ans
:
1.
Internal concurrent manager – Will start all other managers and monitor
2.
Standard Manager – All concurrent request by default will to go this
3.
Conflict resolution manager – Concurrent programs with incompatabilites will be
handled by this
4.
Transaction manager – Handle all transaction requests
33.
What are actual and target count in ‘Adminster Concurrent Managers form’?
Ans
: Target is the no. of concurrent processes a manager is supposed to
start(specified in the defination of concurrent manager).Actual is the no. of
processes a manager started actually.
Target
and Actual should be always same.
34.
What if Target and Actual are not same?
Ans
: It means at operating system level resources are low to accomidate the
required processes for concurrent managers.
35.
What are work shifts?
Ans
: Work shifts are nothing but timings at which the concurrent manager is
supposed to run.
36.
What if internal concurrent manager target and actual are not same?
Ans
: we need to bounce the concurrent manager using adcmctl.sh
37.
How to bounce a single concurrent manager?
Ans
: From frontend using ‘Administer Concurrent Manager form’.
38.
When we change apps password , is it necessary to bounce application?
Ans
: Only we need to bounce concurrent managers.
39.
What is dbc file and its location?
Ans
: dbc file contain database connection information. DBC file is used by oracle
applications to connect to database. Its location is $FND_TOP/secure
40.
What is the other script by which u can start apache other than adapcctl.sh?
Ans
: apachectl @IAS_ORACLE_HOME/Apache/bin
41.
What is the configuration file for PL/SQL listener?
Ans
: httpd_pls.conf @IAS_ORACLE_HOME/Apache/Apache/conf
42.
How to skip copy portion while applying a patch?
Ans
: Adpatch options=nocopyportion
43.
How to merge patches and what type of patches can be merged?
Ans
: admrgpch. We can merge any kind of application patches, if any of the patch
contain a u-driver then merged patch will contain u_merged.drv otherwise
c_merged.drv, d_merged.drv and g_merged.drv
44.
What is the Tiered architecture of u r instance?
Ans
: Two Tier: Web and Forms on one node and Conc, admin and report on other node.
45.
How to find formserver version?
Ans:
f60gen and press enter, it will tell u the formserver version or we can find
out from the frondend using help menu.
46.
What is RRA?
Ans
: RRA stands for Report Review Agent. RRA is nothing but FNDFS which is part of
apps listener. RRA job is to pick the log/out file from the file system and
show on the editor when u press view log/out button in ‘View concurrent request
form’.
47.
What is apps listener?
Ans
: Apps lintener is the combination of FNDFS and FNDSM. FNDSM is service manager
which will monitor application services on that node when GSM:enable profile
value is ‘Y’.
48.
What is GSM?
Ans
: GSM stands for Generic service Manager, which will monitor application
processes like web, forms etc and restarts any of this processes if goes down.
49.
How to find the application version like 11.5.8/11.5.9….?
Ans
: select release_name from fnd_product_groups;
50.
How to find the database/sqlplus version?
Ans
: select banner from v$version;
51.
How to find out what are the languages enabled in u r applications?
Ans
: Query fnd_languages
52.
What is the size of u r database?
Ans
: 200 to 500 GB
53.
How to find operating system version?
Ans
: uname –a
54.
What are the problems u have faced while shutting down applications?
Ans
: While shutting down application generally concurrent manager won’t go down
because some or the other request may be running. We will see what are the
concurrent requests running by querying fnd_concurrent_requests,
fnd_concurrent_program_vl, v$session,v$process and v$sqltext. If that request
is only doing some select statement then we will kill those requests, otherwise
we will check what time it will take to complete by querying the previous runs
of that request and then we will decide what to do.
55.
What are the problems u have faced while starting up applications?
Ans
: Most of the time we will encounter problem with starting up concurrent
managers. Reasons , database listener may be down or FNDSM entries are wrong in
tnsnames.ora of 806_ORACLE_HOME.
56.
How to find the locks and what is the resolution?
Ans
: we can find general locks with the following query:
select
* from sys.dba_dml_locks order by session_id.
We
can find the dead locks with the following query:
select
* from v$lock where lmode > 0 and id1 in (select distinct id1 from v$lock
where request > 0)
If
it’s a dead lock, we need to kill that session.
57.
How to kill a database session?
Ans
: alter system kill session ‘&sid,&sno’;
58.
How to find adconfig is enabled for oracle operating system user/database?
Ans
: If appsutil directory is there in RDBMS_ORACLE_HOME
59.
Which files tell u the database helath?
Ans
: alert log file @RDBMS_ORACLE_HOME/admin//bdump
60.
How to apply a rdbms patch?
Ans
: Using opatch
61.
How to find opatch is enabled or not for u r database?
Ans
: If Opatch directory exists under RDBMS_ORACLE_HOME.
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Oracle
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