Someone asked me this question few days back:
Is there a way to find out the number of http sessions using WLST? I can query this information by clicking on Deployments and then clicking on Monitoring tab in Admin console.

Here’s the answer:

There is a MBEAN in the ‘RunTimeMbeans’ named ‘WebAppComponentRuntimeMBean’, which has these three attributes for retrieving session count related info:

OpenSessionsCurrentCount: Provides a count of the current total number of open sessions in this module.
SessionsOpenedTotalCount: Provides a count of the total number of sessions opened.
OpenSessionsHighCount: Provides the high water mark of the total number of open sessions in this server.This count starts at zero each time the server is activated.
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Written by Unni on Sat 21 Feb 18:27 (IST) download

1. # File Name : ‘SessionCount.py’

2. # Set the enviroment using ‘setDomainEnv.cmd/sh’

3. # Run the script using this command;

4. # java weblogic.WLST SessionCount.py

5. # Here - ‘inmemrep’ is the name of the app ; ‘AdminServer’ is the name of the server on which the app is deployed

6. print ‘Start of script…’

7. connect(‘weblogic’,‘weblogic’,‘t3://localhost:7001’)

8. serverRuntime()

9. cd(‘/ApplicationRuntimes/inmemrep/ComponentRuntimes/AdminServer_/inmemrep’)

10. n = get(‘Name’)

11. x = get(‘OpenSessionsHighCount’)

12. y = get(‘OpenSessionsCurrentCount’)

13. z = get(‘SessionsOpenedTotalCount’)

14. print ‘Session Counts for ‘,n

15. print ‘\n------------’

16. print ‘\nOpenSessionsHighCount: ‘,x

17. print ‘\nOpenSessionsCurrentCount: ‘,y

18. print ‘\nSessionsOpenedTotalCount: ‘,z

19. print ‘End of script…’

20. # Code written by:

21. # Unnikrishnan Pillai,

22. # Engineer,

23. # Oracle Global Support

Signing off…

Unni

unni@unnikrishnanpillai.tk