IBM Support

PH56266: AFTER APPLIED PH42468, ALWAYS WAITING 8.5S BEFORE CLOSING WEBSOCKETS

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APAR status

  • Closed as program error.

Error description

  • For web socket app, after applied PH42468, always waiting 8.5
    seconds before closing the connection.
    
    The webSocket application is waiting state for about 8 seconds
    when session.close is executed in the websocket program after
    WAS upgraded from 9.0.5.2 to 9.0.5.15 ( PH42468 applied )
    
    The line below is the Java stack information in the waiting
    state for 8 seconds.
    =================================================
    java.lang.Object.wait(Native Method)
    java.lang.Object.wait(Object.java:218)
    com.ibm.ws.wsoc.WsocConnLink.finishReadBeforeClose(WsocConnLink
    .java:808)
    com.ibm.ws.wsoc.SessionImpl.close(SessionImpl.java:394)
    com.ibm.ws.wsoc.external.SessionExt.close(SessionExt.java:170)
    cbp.quics.conn.websocket.BannerEndpoint.onOpen(BannerEndpoint.j
    ava:98)
    sun.reflect.GeneratedMethodAccessor57.invoke(Unknown Source)
    ...
    =================================================
    

Local fix

Problem summary

  • ****************************************************************
    * USERS AFFECTED:  All users of IBM WebSphere Application      *
    *                  Server                                      *
    *                  9.0 using the Websocket feature.            *
    ****************************************************************
    * PROBLEM DESCRIPTION: After PH42468, there is an 8.5 second   *
    *                      delay in closing a websocket.           *
    ****************************************************************
    * RECOMMENDATION:                                              *
    ****************************************************************
    After PH42468, there is an 8.5 second delay in closing a
    websocket.
    

Problem conclusion

  • The websocket connection is closed as soon as possible, usually
    with no delay.
    
    The fix for this APAR is targeted for inclusion in fix pack
    9.0.5.18 and Liberty 23.0.0.10. For more information, see
    'Recommended Updates for WebSphere Application Server':
    https://www.ibm.com/support/pages/node/715553
    

Temporary fix

Comments

APAR Information

  • APAR number

    PH56266

  • Reported component name

    WEBSPHERE APP S

  • Reported component ID

    5724J0800

  • Reported release

    900

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt / Xsystem

  • Submitted date

    2023-08-08

  • Closed date

    2023-09-11

  • Last modified date

    2023-10-03

  • 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

    WEBSPHERE APP S

  • Fixed component ID

    5724J0800

Applicable component levels

[{"Business Unit":{"code":"BU059","label":"IBM Software w\/o TPS"},"Product":{"code":"SSEQTP","label":"WebSphere Application Server"},"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"9.0","Line of Business":{"code":"LOB45","label":"Automation"}}]

Document Information

Modified date:
04 October 2023