How to increase java heap size in EBS R12.2

By -
Why we need to increase the Java heap size:

Mainly we need to increase the  EBS Performance.

 Default oacore JVM heap size is 512 MB it's supports 50 to 100 users

 When our R12.2 instance reach more than 200 users we need to be increase the oacore size for better performance.

Oracle recommended to configure 2 GB JVM Heap Space for oacore.

This can roughly support 150 to 200 users depending on usage.

For higher user load additional oacore managed servers need to be
created.

Oracle recommend to have 1 managed server per 2 CPU.

Following steps how increase the oacore size. 
Step1: Login weblogic console



Step 2: Click à lock and edit



Step3: Choice the Domain tab and click à serves menu



Step4: Click àoacore_server1



Step 5: Click à server start



Step 6: Go to Argument tab


Then change the xms and xmx values default value is 512m

Default values

-XX:PermSize=128m -XX:MaxPermSize=384m -Xms512m -Xmx512m -

I changed the values in

-XX:PermSize=128m -XX:MaxPermSize=384m -Xms1024m -Xmx2048m –

What is mean by XX,Xms and Xmx?

XX is MaxPermSize
Xms is the minimum heap size
Xmx is the maximum heap size


Step 7: Click save and release the configuration tab.


Comments

  1. colin9 July 2020 at 02:59

    Hi, is there a way to change these setting without using the console?

    ReplyDelete
  2. Unknown19 January 2022 at 22:37

    Hey, thanks for the blog article.Really thank you! Great.
    dot net online training
    dot net online course

    ReplyDelete

Post a Comment

Popular posts from this blog

How to troubleshoot long running concurrent request in R12.2

By -
Normally we are getting concurrent program running longer and concurrent request not picking jobs, etc. those are very frequent issue we expected from development team. Collect below basis level of information to development team 1 Oracle seeded program/Custom program? 2 How much time it used earlier? 3 Is there any recent code change done in concurrent program? 4 Is this program fetching higher data compare to last run? 5 Does this job running any specific time/ It can be run any time? 6 Does this job fetching data using DB link? 7 Does the problem happen on both the test and production instance? Once asked above questions to development team in meanwhile we need to start basic sanity check in our environment. 1 Verify the status of the concurrent program Copy select REQUEST_ID,phase_code,status_code,ORACLE_SESSION_ID from apps.fnd_concurrent_requests where request_id=’1234567’;
Read more

How to run Gather Schema Statistics in R12.2

By -
Image
What is Gather Schema Statistics? Gather Schema Statistics program generates statistics that quantify the data distribution and storage characteristics of tables, columns, indexes, and partitions. The cost-based optimization (CBO)  uses these statistics to calculate the selectivity of prediction and to estimate the cost of each execution plan. Why Run the Gather Schema Statistics? When Data is update, insert, delete in table of user end Like (Technical User ,Finance User ,Ect) It become necessary to run the Gather Schema Statistics It’s recommended to Run GSS in Weekly Once or twice. How to run Gather Schema Statistics? Login application with sysadmin user Submit Request Window Navigate to: Concurrent > Requests Enter the parameters This can be run for specific schemas by specifying the schema name or enter ‘ALL’ to gather statistics for every schema in the database Submit the Gather Schema Statistics program Parameters: Schem
Read more

How to compile forms in R12.2

By -
STEP 1--> Login to app server STEP 2--> Go to  directory $AU_TOP/forms?US STEP 3--> Move to ".fmb" file STEP 4--> Execute the below command to generate ".fmx" frmcmp_batch userid=apps/<apps_pwd> module=<form_name>.fmb output_file=<form_name>.fmx module_type=form batch=no compile_all=special (EX):-   frmcmp_batch userid=apps/apps module=JAINTAXT.fmb output_file=$JA_TOP/forms/US/JAINTAXT.fmx module_type=form batch=no compile_all= special (O/p):   Created form file /oracle/CLONE/apps/fs2/EBSapps/appl/ja/12.0.0/forms/US/ JAINTAXT.fmx Refer: R12: How to Compile a Form in Release 12 (Doc ID 1085928.1)
Read more