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3643647 - Slow performance with frequent very large transactions - SAP SRS

Symptom

  • Frequently vary large transaction on Primary database causes Backlog accumulated in OBQ.

  • Large tran (50K+ rows in one transaction ) seen in OBQ is not moving or moving slowly.
    st:C,cmds:1477110,qid:585811:7:93 
    or
    st:R,cmds:1277110,qid:585811:7:93

  • OBQ Max memory Consumed reaches to 80% of the Threshold  and DSIS Max memory consumed reaches to 80% of the Threshold.

    1> admin stats,mem_detail_stats
    2> go
     Object(State)  Memory_Consumed     Memory_Consumed_Mb  Max_Memory_Consumed_Mb   Avg_Memory_Consumed_Mb   Memory_Threshold_Mb Memory_Ctrl_Time(s)

     OBQ  (Norm)    30067057960               28674                                       28704                                28672                                    35836               0

            DSIS (Norm)     5560635552                5303                                         233449                                5319                                   291811              0


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Environment

  • SAP Adaptive Server Enterprise (ASE) 16.0 with Always On Option (HADR)
  • SAP Replication Server (SRS) 16.0

Product

SAP ERP 6.0 ; SAP Replication Server 16.0

Keywords

KBA , BC-SYB-REP-SAP , Replication with SAP Suite / SAP BW , Product Enhancement

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