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IT22445: MEMORY LEAK IN FEDERATED FMP PROCESS DUE TO USE OF PASSTHRU.

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You can track all active APARs for this component.

 

APAR status

  • Closed as program error.

Error description

  • The private memory leaks in the federated fenced process. The
    db2pd -memblock against the fenced routine shows the following
    blocks keep increasing.
    
    Memory blocks sorted by size:
    PoolID  PoolName  TotalSize(Bytes) TotalCount LOC   File
    0                 135996829        695021     5271  383163805
    
    Please note that the LOC can vary depending on the versions and
    fixpack level. Also, the File and LOC is the same as those od
    IT08324.
    
    The following statements illustrates how to produce the leak
    issue.
    
    $ db2 set passthru <fed_server_name>
    $ db2 "SELECT * FROM <table_in_source_db>"
    $ db2 set passthru reset
    

Local fix

  • Please do not use passthru session if possible.
    

Problem summary

  • ****************************************************************
    * USERS AFFECTED:                                              *
    * ALL                                                          *
    ****************************************************************
    * PROBLEM DESCRIPTION:                                         *
    * See Error Description                                        *
    ****************************************************************
    * RECOMMENDATION:                                              *
    * Upgrade to Db2 11.1 Mod 3 Fix Pack 3 or higher               *
    ****************************************************************
    

Problem conclusion

  • First fixed in Db2 11.1 Mod 3 Fix Pack 3
    

Temporary fix

Comments

APAR Information

  • APAR number

    IT22445

  • Reported component name

    DB2 FOR LUW

  • Reported component ID

    DB2FORLUW

  • Reported release

    B10

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt / Xsystem

  • Submitted date

    2017-09-19

  • Closed date

    2018-03-19

  • Last modified date

    2018-03-19

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

    IT15466

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

Fix information

  • Fixed component name

    DB2 FOR LUW

  • Fixed component ID

    DB2FORLUW

Applicable component levels

  • RB10 PSN

       UP

[{"Business Unit":{"code":"BU048","label":"IBM Software"},"Product":{"code":"SSEPGG","label":"DB2 for Linux, UNIX and Windows"},"Component":"","ARM Category":[],"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"11.1","Edition":"","Line of Business":{"code":"LOB10","label":"Data and AI"}}]

Document Information

Modified date:
19 March 2018