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PI49566: WebSockets might not close the connection if sessionIdleTimeout is set

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You can track all active APARs for this component.

 

APAR status

  • Closed as program error.

Error description

  • WebSockets might not close the connection if
    sessionIdleTimeout is set
    

Local fix

Problem summary

  • ****************************************************************
    * USERS AFFECTED:  All users of IBM WebSphere Application      *
    *                  Server Liberty Profile - Websockets         *
    ****************************************************************
    * PROBLEM DESCRIPTION: Connection leak, therefore a memory     *
    *                      leak, may occur if the server reads     *
    *                      Websocket Close frames in fragments.    *
    ****************************************************************
    * RECOMMENDATION:                                              *
    ****************************************************************
    In rare cases a close frame coming from a client may be split
    across more than one TCP/IP data read on the server.  This can
    result
    in the websocket connection objects not being discarded at the
    server, and therefore slowly building up over time.
    

Problem conclusion

  • Websocket code was change to properly deal with close frames
    that are split across more than one "read" of the TCP/IP data
    that is on the network.
    
    The fix for this APAR is currently targeted for inclusion in fix
    pack 8.5.5.9  Please refer to the Recommended Updates page for
    delivery information:
    http://www.ibm.com/support/docview.wss?rs=180&uid=swg27004980
    

Temporary fix

  • no
    

Comments

APAR Information

  • APAR number

    PI49566

  • Reported component name

    WAS LIBERTY COR

  • Reported component ID

    5725L2900

  • Reported release

    855

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt / Xsystem

  • Submitted date

    2015-09-30

  • Closed date

    2016-02-25

  • Last modified date

    2016-02-25

  • 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

    WAS LIBERTY COR

  • Fixed component ID

    5725L2900

Applicable component levels

  • R855 PSY

       UP

[{"Business Unit":{"code":"BU059","label":"IBM Software w\/o TPS"},"Product":{"code":"SSD28V","label":"WebSphere Application Server Liberty Core"},"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"855","Line of Business":{"code":"LOB45","label":"Automation"}}]

Document Information

Modified date:
30 November 2021