SAP PI CPU utilization above 95%

[Former Member]

Hello,

I am using PI 7.3 and found that ESR and ID response is very slow and also I found that CPU utilization is always 99% (user 70%+ and system 20%+).
I have restarted system twice and also cleaned the cache, but still this issue persists.

Request you to give me your suggestions.

Regards,

Pratik

[rupali_karbhari3]

Hi Pratik,

We also faced similar issue in PI.

As per observation, there were huge messages were stuck in PI system seen via message monitor.

We asked PI team to stop all channels and cancell stuck messages and restated PI system.

Also ask your network team to perform OS analysis , hardware upgrade might help for such issues.

Thank You,

Rupali

[Former Member]

Hello All,

OS is AIX 6.1
DB is oracle 11 G

I found that jstart.exe process is consuming about 80%+ CPU.

Any suggestions on this

[divyanshu_srivastava3]

Yes, I have already faced and worked on such issues.

Please follow below KBA

743191 - Analyzing High CPU usage by the J2EE Engine: AIX

Regards,

[Former Member]

Hello,

SAP had investigated the java thread dumps and asked to increase the http thread parameter.

Increasing this parameter didn't help.

Please let me know if anyone has faced this issue and has a solution eg:Java patches to be applied etc.

Regards,

Pratik

[srinivasan_vinayagam]

Hi Pratik,

Note 742395 - Analyzing High CPU usage by the J2EE Engine

Note 799803 - High CPU consumption with J2EE Engine

PI specific,

Note 1118202 - High CPU load due to Messaging System AuditLog handling

Note 1489751 - Performance improvements for XI starup at high message load

Note 1472049 - Slow performance during XML Validation

http://www.sdn.sap.com/irj/scn/go/portal/prtroot/docs/library/uuid/70c8bdb7-6fe0-2e10-5b86-a33fdb53f...

Regards,

V Srinivasan

[Former Member]

Hi Srinivasan,

PI system version is 7.30.The notes which you have mentioned are not relevant for PI 7.30.

Also SAP has already suggested note 742395 which based on which I have provided the java logs to SAP. But I have not get satisfactory reply from SAP.

Regards,

Pratik

[srinivasan_vinayagam]

Hi Pratik,

What database your are using?

Is it production environment?

If not stop sap and check the CPU utilization for database.

Determining the Number of Work Processes - SAP Memory Management (BC-CST-MM) - SAP Library

Regards,

V Srinivasan

[divyanshu_srivastava3]

Hi Pratik,

The problem should be with java heap or thread utilization.

Can you take thread dumps and check usage of GC in std_server0.out file ?

Regards,

[Sriram2009]

Hi

1. Could you check the SAP system why CPU usage is 70%? is this any process abnormal?

2. Check the over all disk usage is it full or not?

3. Are you using the central SLD on you PI? if it yes could you check the SLD

4. Could you refer the SAP KBA about you issue

2048626 - PI Performance - severe degradation of system performance

5. Could you share your OS /DB version? and at your OS level could check which process takes CPU usage?

BR

SS

[Former Member]

Forgot to mention that there is no active work process or locks in the system