Redo-Log Files Physical Data Placement

Tuning Application Server Performance 25-3

2. Navigate to Environment, Work Managers, and then to

MaxThreadsConstraint-0 . 3. Change the value of the count from 20 to number per your requirement.

25.5 Disable Reloading of Adapters and Plug-in Configuration

By default, reloading of adapters and plug-in configuration are enabled for ease of development. These should be disabled in the production environment. To do so: 1. Export the dboim-config.xml file from MDS as described in Exporting and Importing Configuration Files on page 18-1. 2. In the oim-config.xml file, replace the following: ADPClassLoaderConfig adapterReloadingEnabled=true loadingStyle=ParentFirst reloadInterval=15 reloadingEnabled=true With: ADPClassLoaderConfig adapterReloadingEnabled=false loadingStyle=ParentFirst reloadInterval=15 reloadingEnabled=false 3. Replace the following: storeConfig reloadingEnabled=true reloadingInterval=20 With: storeConfig reloadingEnabled=false reloadingInterval=20 4. Save the oim-config.xml file and import it back to MDS.

25.6 Changing the Number of Open File Descriptors for UNIX Optional

WebLogic limits the number of open file descriptors in the WEBLOGIC_HOMEcommonbincommEnv.sh script to 1024. In some cases, if there is a huge number of concurrent users, WebLogic may throw the TOO MANY OPEN FILES exception. If you face this error, then increase the limit beyond 1024 in the script. Ensure that the operating system is able to handle the increase in the number of open files.

25.7 Tuning the JVM Garbage Collection for Solaris Sparc T3 or T4

To tune the JVM garbage collection for Solaris Sparc T3 or T4: 1. In a text editor, open the setSOADomainEnv.sh or setSOADomainEnv.cmd file in the DOMAIN_HOMEbin directory. 2. Set the value of USER_MEM_ARGS similar to the following: USER_MEM_ARGS=-Xms3048m -Xmx3048m -Xmn1648m -Xss256k -XX:PermSize=384m -XX:MaxPermSize=384m 3. Set the value of JAVA_OPTIONS similar to the following: Note: The values shown for USER_MEM_ARGS are examples. You can change the values based on your requirement.