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2173629 - CST - Memory dumps due to global PROC memory limit

Symptom

  1. In transaction ST22, memory-related dumps are visible. For example: SYSTEM_NO_TASK_STORAGE, DBSQL_NO_PERM_MM_MEMORY, DBSQL_DBSL_NO_MEMORY or SYSTEM_NO_MEMORY

    KBA1pronto.png

  2. In the corresponding work process trace file (dev_w*). Located in the instance's work directory (LocalDrive\usr\sap\<SID>\SCS<XX>\work), the below entries can be seen in the same timestamp of the dumps:

    X Mon Apr 4 11:35:29 2017
    X *** ERROR => Total heap memory usage (PRIV=87988224, PROC=6706098952+4926600) exceeds global PROC quota=6706098952 [emxx.c 5104]
    X {root-id=CC43E7E7AB881ED786938A6A4C4F01C7}_{conn-id=00000000000000000000000000000000}_0

     

  3. Accessing transaction SE38 in the instance. Where the dump was raised and running the RSMEMORY report, in the PROC Memory box, click Server as per the below image: 

    RSMEMORYProcServer.png

    And on the output screen where the current usage of PROC Memory in the server is shown, it can be seen that the Glob. Quota column value was reached by the Glob. Peak value and/or by the Glob. Used value. This means that the PROC memory global quota was completely exhausted in the instance, as per the below image:

    KBA1.png


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Environment

  • SAP NetWeaver 7.4
  • SAP NetWeaver 7.5
  • SAP NetWeaver Application Server for SAP S/4HANA
  • ABAP PLATFORM - Application Server ABAP

Product

ABAP platform all versions ; SAP NetWeaver 7.4 ; SAP NetWeaver 7.5 ; SAP Web Application Server for SAP S/4HANA all versions

Keywords

CST, client server technology, kernel, application server, instance, DBSQL_NO_PERM_MM_MEMORY memory db_allocate_heap_block heap, PROC, memory, dump, hanging, crash, TSV_TNEW_PAGE_ALLOC_FAILED, SYSTEM_NO_ROLL, LOAD_NO_ROLL, GEN_INTERNAL_ERROR, heap. em/proc_max_size_MB,  DBSQL_ALLOCATION_FAILED, em/proc_max_wpsize_MB, work directory, LocalDrive\usr\sap\<SID>\SCS<XX>\work, em/proc_use_stdheap=TRUE , KBA , BC-CST-MM , Memory Management , BC-DB-DBI , DB Independent Database Interface , Problem

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