IBM Support

IC91394: WLM THREADS LOSING THEIR ELEVATED PRIORITY WHEN USING DB2_RESOURCE_POLICY FILE WITH SCHEDULING_POLICY ELEMENT

Subscribe

You can track all active APARs for this component.

APAR status

  • Closed as program error.

Error description

  • When you are using a DB2_RESOURCE_POLICY file with the
    SCHEDULING_POLICY element you might encounter that the WLM
    threads are losing their elevated priority. The thread prioriy
    from the policy file overrides the WLM EDU priority.
    
    This behavior is not expected and will impact you if you are
    using WLM functionality with DB2.
    

Local fix

  • In order to restore the proper defaults, you can add these two
    stanzas to your resource policy configuration.
    
             <EDU_PRIORITY>
                 <EDU_NAME>db2wlmt</EDU_NAME>
                 <PRIORITY_VALUE>41</PRIORITY_VALUE>
             </EDU_PRIORITY>
             <EDU_PRIORITY>
                 <EDU_NAME>db2wlmtm</EDU_NAME>
                 <PRIORITY_VALUE>41</PRIORITY_VALUE>
             </EDU_PRIORITY>
    

Problem summary

  • ****************************************************************
    * USERS AFFECTED:                                              *
    * All                                                          *
    ****************************************************************
    * PROBLEM DESCRIPTION:                                         *
    * See Error Description                                        *
    ****************************************************************
    * RECOMMENDATION:                                              *
    * Upgrade to DB2 version 9.7 Fix Pack 9                        *
    ****************************************************************
    

Problem conclusion

  • First fixed in DB2 version 9.7 Fix Pack 9
    

Temporary fix

Comments

APAR Information

  • APAR number

    IC91394

  • Reported component name

    DB2 FOR LUW

  • Reported component ID

    DB2FORLUW

  • Reported release

    970

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt

  • Submitted date

    2013-04-06

  • Closed date

    2013-12-23

  • Last modified date

    2013-12-23

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

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

    IC91409 IC91810 IC95242

Fix information

  • Fixed component name

    DB2 FOR LUW

  • Fixed component ID

    DB2FORLUW

Applicable component levels

  • R970 PSN

       UP



Document information

More support for: DB2 for Linux, UNIX and Windows

Software version: 9.7

Reference #: IC91394

Modified date: 23 December 2013