IBM Support

PH00304: WAS LIBERTY NOT RESPECTING MAX CONNECTION POOL SETTING

Subscribe to this APAR

By subscribing, you receive periodic emails alerting you to the status of the APAR, along with a link to the fix after it becomes available. You can track this item individually or track all items by product.

Notify me when this APAR changes.

Notify me when an APAR for this component changes.

APAR status

  • Closed as program error.

Error description

  • Max connections for datasource connection pool is set to
    500,
    however, more then 800 connections are used.
    Since multiple WAS Liberty servers are running with that
    problem
    it leads to overload and outage of database server.
    This was discovered on 17.0.0.4.
    

Local fix

  • N/A
    

Problem summary

  • ****************************************************************
    * USERS AFFECTED:  All users of IBM WebSphere Application      *
    *                  Server Liberty                              *
    ****************************************************************
    * PROBLEM DESCRIPTION: The maximum connections setting of a    *
    *                      Data Source's Connection Pool is not    *
    *                      always honored.                         *
    ****************************************************************
    * RECOMMENDATION:                                              *
    ****************************************************************
    There are windows where, if a thread is interrupted, extra
    connections can be obtained beyond the value specified by
    maximum connections.
    

Problem conclusion

  • Code has been fixed so that maximum connections is honored even
    when threads are interrupted.
    
    The fix for this APAR is currently targeted for inclusion in fix
    pack 9.0.0.9, 8.5.5.15 and 18.0.0.3.  Please refer to the
    Recommended Updates page for delivery information:
    http://www.ibm.com/support/docview.wss?rs=180&uid=swg27004980
    

Temporary fix

Comments

APAR Information

  • APAR number

    PH00304

  • Reported component name

    LIBERTY PROFILE

  • Reported component ID

    5724J0814

  • Reported release

    850

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt / Xsystem

  • Submitted date

    2018-07-11

  • Closed date

    2018-09-10

  • Last modified date

    2018-09-10

  • 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

    LIBERTY PROFILE

  • Fixed component ID

    5724J0814

Applicable component levels



Document information

More support for: WebSphere Application Server

Software version: 850

Reference #: PH00304

Modified date: 10 September 2018


Translate this page: