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IC96960: INTERRUPT POOLED DATABASE AGENTS WHICH ARE SERVING NEW APPLICATIONS THAT HAVE NOT CONNECTED TO THE DATABASE YET.

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APAR status

  • Closed as fixed if next.

Error description

  • During graceful takeover, the existing logic on primary will
    force all applications and kick off all pooled agents to
    dissociate from the database.
    If a pooled database agent is picked to serve a new application
    that is not fully connected to the database, this pooled agent
    will not be interrupted and so the primary will end up waiting
    for
    the pooled agent to terminate processing on its own.
    We are adding new interrupt support to interrupt these kind of
    agents as well.
    

Local fix

  • To prevent this issue, update num_poolagents DBM configuration
    parameter to 0 for HADR database to ensure no pooled database
    agents exist. Please consult the information center on
    num_poolagents, since modifying this parameter can have
    performance consequences.
    

Problem summary

  • ****************************************************************
    * USERS AFFECTED:                                              *
    * During graceful takeover, the existing logic on primary will *
    * force all applications and kick off all pooled agents to     *
    * dissociate from the database.                                *
    * If the pooled database agent is picked to serve new          *
    * application                                                  *
    * that are not fully connected to the database, this pooled    *
    * agent                                                        *
    * will not be interrupted.  We are adding new interrupt        *
    * support                                                      *
    * to interrupt this kind of agents as well.                    *
    ****************************************************************
    * PROBLEM DESCRIPTION:                                         *
    * See Error Description                                        *
    ****************************************************************
    * RECOMMENDATION:                                              *
    * Upgrade to v10fp3                                            *
    ****************************************************************
    

Problem conclusion

Temporary fix

Comments

APAR Information

  • APAR number

    IC96960

  • Reported component name

    DB2 FOR LUW

  • Reported component ID

    DB2FORLUW

  • Reported release

    970

  • Status

    CLOSED FIN

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt

  • Submitted date

    2013-10-17

  • Closed date

    2014-11-27

  • Last modified date

    2014-11-27

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

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

    IC97376 IT05792 IT05795

Fix information

Applicable component levels

  • R970 PSN

       UP



Document information

More support for: DB2 for Linux, UNIX and Windows

Software version: 9.7

Reference #: IC96960

Modified date: 27 November 2014