Perfomance issues on PI 7.31

[former_member440061]

Hello Experts,

Lately our PI server 7.31 has been going through some perfomance issue.

Outbound Messages from ECC server to PI would get stuck in queues SMQ2 in ECC with error as :

Error while receiving by HTTP (error code: 401, Error text : ICM_HTTP_CONNECTION_BROKEN)

or

Error while sending by HTTP (error code: 403, Error text : service unavailable)

Basis has provided the analysis for these failures as the PI server nodes getting restarted due to use of few XSLT mappings which in turn are referring huge BRM value mapping tables.

This frequent PI server downtime has caused many escalations since it causes message failures/delay.

I remember reading some time back that XSLT mappings despite being powerful options for developer do cause performance issues. However as of now , we cannot go for design change.

please suggest what could be done to handle this. Are there some parameters in PI which can be adjusted to mitigate this issue. Or do we have to ask the basis to increase the heap memotry size. Not much sure about the technical aspects related to this issue.

Any help would be appreciated. Thanks in advance.

[iaki_vila]

Hi Faisal,

Check this link 2149132 - ICM performance checks

First of all, before to increase the memory or to think to change any scenario, your basis team should to figure out if the PI system is correctly parametrized and optimized, these links can be helpful:

http://www.sdn.sap.com/irj/scn/go/portal/prtroot/docs/library/uuid/2016a0b1-1780-2b10-97bd-be3ac6221...

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

When you have your system optimized with PI recommendation you can check if particular scenarios could be problematic from performance perspective.,

Regards.

[abhijeet_singh2]

it says service is broken.

Is the service activated ? please check in SICF.

Thanks

Abhijeet

[pvishnuvardan_reddy]

Hi Faisal,

Can you check the below snotes/links also which might help you in this regard:

1558146 - PI runtime: Enhancement of performance measurement

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

[ricardocarrega_filho]

Hello Faisal,

Try looking at SAP note "737625 - Parameter recommendations for Internet Communication Manager (ICM)" and applying the recommended values to the ICM on the instance affected by the above ICM error.

Regards,

Ricardo

[former_member440061]

thanks Ricardo..

Will check the note and update you.