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Unbalanced background load distribution in SAP batch servers


We are having 5 application servers (Say for Example - ERP1, ERP2, ERP3, ERP4 and ERP5) with 30 BG work process each. (Back. WP Class A - 5 on each application server)

We have maintained 4 job server groups (PUBLIC, SAP_DEFAULT_BTC, DEFAULT and SPACE). We have included all the 5 application servers in all the batch server groups

I see all the Released jobs in the system are defined in either of the Target Servers we defined in the Job server Group

We still see the load distribution is not equal between servers.

Every day we are seeing that the load on ERP4 is almost three times when compared riple to other application servers.

The rest of the application servers are alsmot sharing the same load with ➕or ➖ 10 jobs in count.

Below is for one day i have pasted

Server Long Running Jobs count Shorter Jobs count ERP1 81 4747 ERP2 93 4437 ERP3 61 2911 ERP4 227 9061 ERP5 54 2598


Long Running Jobs = Job duration more than 15 minutes

Shorter Jobs = Job duration less than 15 minutes

Any suggestion what to check ond find out why a singlw application server is overloaded?



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2 Answers

  • Oct 19, 2014 at 09:18 AM

    Hi Subbu

    1.  In this five one of the server will as CI along with DB instance?

    2. You can check the statistic by using the transaction code ST03 / ST03N



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    • Hi Subbu

      1.  You can check the number of active users session in ERP4 and all other systems?

      2. Over all usage of the ERP4 system in ST03 /ST03N Work process usage? Same thing for all other application servers.



  • Oct 20, 2014 at 08:28 AM

    Hello Subbu,

    you can check the following notes, if the notes can be applied in your case:

    1530713 - Improved load balancing
    1508504 - Load balancing in background processing


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