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IT17779: STATUS MONITORING MEMORY LEAK IN "TUMATCHSTRCOLANDINTCOL" FUNCTION

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You can track all active APARs for this component.

APAR status

  • Closed as program error.

Error description

  • A memory leak can occur for Server version 7.1.3 and higher
    with Operation Center and replication configured.
    
    Using 'show alloc' this issue will show high memory usage over
    time of the "tuMatchStrColAndIntCol" function.
    
    The problem will happen if all the following
    conditions are met:
    
    1. Server version is 7.1.3.0 through 7.1.7.0.
    2. Replication is configured on the server.
    3. One or more nodes is enabled for replication and with
       replication mode = SEND.
    4. Status monitoring is set to 'ON' to work with the
       Operation Center.
    
    For example:
    
    tumatch.c line   335:   115831 entries for    1231741892 bytes
    (tuMatchStrColAndIntCol) thread
    395(TablesMonitoringThreads[i].monT parent=35)
    The affected server can be a "hub" server or a "spoke" server.
    
    Eventually, due to the memory leak during status monitoring the
    host system can run out of free memory and paging/swap space and
    can stop.
    
    
    IBM Spectrum Protect versions affected:
    Server 7.1.3.0 and higher on all supported platforms
    
    | MDVREGR 7.1.3.0-TIV_5698MSV |
    
    Initial Impact: Medium
    
    Additional Keywords:  TSM IBM Spectrum Protect memleak memory OC
    

Local fix

  • Restart the server process/service
    
    or
    
    Stop status monitoring with "SET STATUSMONITOR OFF" but this
    means no monitoring data is sent to Operations Center.
    

Problem summary

  • ****************************************************************
    * USERS AFFECTED:                                              *
    * All IBM 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 levels 7.1.7.100 and 7.1.8. Note    *
    * that this is subject to change at the discretion of IBM.     *
    ****************************************************************
    

Problem conclusion

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

Temporary fix

Comments

APAR Information

  • APAR number

    IT17779

  • 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

    2016-11-02

  • Closed date

    2016-11-18

  • Last modified date

    2017-07-07

  • 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: 7.1.3

Reference #: IT17779

Modified date: 07 July 2017