IBM Support

IT13466: MEMORY LEAK DURING STATUS MONITOR ATTEMPT TO COLLECT REPLICATION WORKLOAD COUNTS

Subscribe

You can track all active APARs for this component.

APAR status

  • Closed as program error.

Error description

  • IBM Spectrum Protect Server memory usage  increases daily.  The
    "show alloc"  command  shows the allocated memory for Status
    Monitoring thread used to monitor replication work load continue
     to increase if the replication process is active.
    
    L2/Customer diagnostics:
    .
     Collect dynamic output of "show alloc", the  data shows the
    allocated memory  bytes for "StatusMonitorThread"  from imrepl.c
    increases:
    
    For example:
    
    Jan: 29th:
    imrepl.c line xxxx: 18533340 entries for 23574408480 bytes
     (CopyNodeFsList) thread 35(StatusMonitorThread parent=1)
    
    
    Jan 30th
    
    imrepl.c line xxxx: 19451961 entries for  24742894392 bytes
    (CopyNodeFsList) thread 35(StatusMonitorThread parent=1)
    
    
    Jan 31st:
    
    imrepl.c line xxxx: 22466115 entries for 28576898280 bytes
     (CopyNodeFsList) thread 35(StatusMonitorThread parent=1)
    
    
    
    The problem can happen if both below conditions are true:
    
    1: SHOW MONREPLINFO' shows :
    
    Sync pass 1 is running
    
    2:" Q proc" shows replication is running.
    
    Note:
    The status monitor checks whether the server needs to perform
    the weekly comprehensive count of  replication workload.  While
    the thread that performs replication workload count is running
    the status monitor is incorrectly attempting to start another
    thread to do the replication workload count.  This problem  can
    happen if the thread, ReplCountSyncThread, and a node
    replication are  running at the same time.
    
    .
    
    Versions/Platform Affected:
    IBM Spectrum Protect Server version 7.1.3 and above on all
    supported platforms
    
    
    Initial Impact:
    HIGH
    
    
    
    Additional Keywords:
    Memory leak imrepl.c StatusMonitor CopyNodeFsList MONREPLINFO
    ReplCountSyncThread   tsm
    

Local fix

  • 1: execute below  undocumented command, to temporarily stop the
    status monitor from monitoring the replication workload.
    
     SETOPT ALLOWREPLWRKLOADMONITOR NO
    
    2: recycle the instance as needed to release the already
    allocated memory.
    

Problem summary

  • ****************************************************************
    * USERS AFFECTED:                                              *
    * All Tivoli Storage Manager server users.                     *
    ****************************************************************
    * PROBLEM DESCRIPTION:                                         *
    * See error description.                                       *
    ****************************************************************
    * RECOMMENDATION:                                              *
    * Apply fixing level when available. This problem is currently *
    * projected to be fixed in level 7.1.5. Note that this is      *
    * subject to change at the discretion of IBM.                  *
    ****************************************************************
    

Problem conclusion

  • This problem was fixed.
    Affected platforms:  AIX, HP-UX, Solaris, Linux, and Windows.
    

Temporary fix

Comments

APAR Information

  • APAR number

    IT13466

  • Reported component name

    TSM SERVER

  • Reported component ID

    5698ISMSV

  • Reported release

    71A

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt / Xsystem

  • Submitted date

    2016-02-03

  • Closed date

    2016-02-10

  • Last modified date

    2016-02-10

  • APAR is sysrouted FROM one or more of the following:

  • APAR is sysrouted TO one or more of the following:

Fix information

  • Fixed component name

    TSM SERVER

  • Fixed component ID

    5698ISMSV

Applicable component levels

  • R71A PSY

       UP

  • R71H PSY

       UP

  • R71L PSY

       UP

  • R71S PSY

       UP

  • R71W PSY

       UP



Document information

More support for: Tivoli Storage Manager

Software version: 71A

Reference #: IT13466

Modified date: 10 February 2016