Basic WebLogic Tuning in EPM

Part of the EPM Infrastucture Tuning Guide is a section on WebLogic tuning. The guide can be found here, https://blogs.oracle.com/pa/resource/Oracle_EPM_11_1_2_3_Tuning_Guide_v2.pdf 

These steps are recommended, and will be required because any time you create an SR with Oracle they will ask, "Did you apply the recommended tuning guidelines?" Responding no to this question usually results in an impasse and failure to complete the SR.

The basic WebLogic Tuning steps are:
1. Increase number of threads in connection pool
2. Tune connection backlog buffering
3. Stuck thread detection behavior tuning
4. Enable Native IO Performance pack.

Analyzing this a bit, steps 2 and 4 are already configured by default in 10.3.x. Consequently, they can be ignored.

The tuning guide shows how to somewhat tediously go and set the database connection pool settings and stuck threads using some screenshots. However, a scripted approach might be better to apply the settings in multiple environments, and ensure uniformity over time. A quick WLST script is below to do this. Keep in mind the tuning settings are just suggested values. For instance, stuck thread time is more an indicator of how long your longest acceptable web transaction might be, which is customer specific. In the script below EAS is configured with a different thread value than the rest of the managed servers, as an example.

Important Note: Once the connection pool is increased, you may also need to increase the number of available connections the database allows. For example, you may want to increase the number of processes in the Oracle Database.

File: TuneWL.py
connect(.....) 
edit() 
startEdit()

servers = cmo.getServers()
for server in servers:
  name=server.getName()
  print 'Tuning Cluster: '+ name
  cd('/Servers/' + name)   
  t_time = 1200
  if "Essbase" in name:
    t_time = 2400
    print "Setting EAS thread time to " + str(t_time)
  cmo.setStuckThreadMaxTime(t_time)
  cmo.setStuckThreadTimerInterval(t_time)


# JDBC connection pool

dsName = 'calc_datasource'cd('/JDBCSystemResources/'+dsName+'/JDBCResource/'+dsName+'/JDBCConnectionPoolParams/'+dsName)cmo.setMaxCapacity(30)

dsName = 'eas_datasource'cd('/JDBCSystemResources/'+dsName+'/JDBCResource/'+dsName+'/JDBCConnectionPoolParams/'+dsName)cmo.setMaxCapacity(30)

dsName = 'EPMSystemRegistry'cd('/JDBCSystemResources/'+dsName+'/JDBCResource/'+dsName+'/JDBCConnectionPoolParams/'+dsName)cmo.setMaxCapacity(150)

dsName = 'planning_datasource'cd('/JDBCSystemResources/'+dsName+'/JDBCResource/'+dsName+'/JDBCConnectionPoolParams/'+dsName)cmo.setMaxCapacity(150)

dsName = 'raframework_datasource'cd('/JDBCSystemResources/'+dsName+'/JDBCResource/'+dsName+'/JDBCConnectionPoolParams/'+dsName)cmo.setMaxCapacity(150)

save() 
activate() 
Output:

C:\Oracle\Middleware\user_projects\domains\EPMSystem\bin>setDomainEnv.cmd
C:\Oracle\Middleware\user_projects\domains\EPMSystem>java weblogic.WLST TuneWL.py


Starting an edit session ...
Started edit session, please be sure to save and actictivate changes once you are done.

Tuning Cluster: FoundationServices0
Tuning Cluster: EssbaseAdminServices0
Setting EAS thread time to 2400
Tuning Cluster: EpmaDataSync0

...