JDK Version Upgrade

Steps for JDK version upgrade:

  1. Stop all the servers
  2. Copy JDK <New Version> to /tmp/
  3. Untar the installable
  4. Take backup of existing JAVA(jrockit)
  5. Copy the contents of the extracted/new java files to the existing JavaHome
  6. Copy the cacerts from the jrockit backup taken before upgrade to java_home/jre/lib/security folder
  7. Goto Domain_Home/bin and edit setDomainenv.sh
  8. Search for JAVA_SUN_HOME as in screenshot and place the javahome value(same as that of the old ones )
  9. Also place JAVA_VENDOR=”Sun” below the JAVA_SUN_HOME. Save the file.
  10. Download UnlimitedJCEPolicyJDK7/8.zip and copy to servers and extract the file. Two files US_export_policy.jar local_policy.jar will be present.
  11. Copy the files to JAVA_HOME/jre/lib/security folder
  12. Check JAVA version and start the servers.

Apply ‘10.3.6.0.12 Patch Set Update (PSU) for WebLogic Server 10.3.6.0’

Steps to apply ‘10.3.6.0.12 Patch Set Update (PSU) for WebLogic Server 10.3.6.0’ -
Pre-requisites -


1. Set the required ENV variables -
ORACLE_HOME, JAVA_HOME, MW_HOME, WL_HOME
2. Take MW_HOME backup
tar -cvpzf oim_backup_somename.tar.gz /idm/fmw----as root user
Cd /u01/app/oraInventory -----------------oracInst.loc file located here!
cp oraInst.loc /idm/backup/ ---as oracle user


3. Run ./opatch lsinventory and save the result in a temp file (Eg: /idm)
- cd opatch
-run ./opatch lsinventory


4. cd /idm/fmw/WL_PSU/
unzip p20780171_1036_Generic.zip -d /idm/fmw/utils/bsu/cache_dir
cd /idm/fmw/utils/bsu/


Patch Apply -
Command:
./bsu.sh -install -patch_download_dir=/idm/fmw/utils/bsu/cache_dir -patchlist=EJUW -
prod_dir=/idm/fmw/wlserver_10.3

Start the services.

Basic Perfomance Tuning For stuck threads and response times

Documentation for performance tuning: https://docs.oracle.com/en/middleware/fusion-middleware/12.2.1.4/asper/redundant-cross-references-remo...