IBM Support

PI11176: THE HTTP CHANNEL COULD CAUSE THE OPERATING SYSTEM TO SEND AN RST PACKET WHEN THE CONNECTION IS CLOSED

Fixes are available

8.5.5.3: WebSphere Application Server V8.5.5 Fix Pack 3
7.0.0.35: WebSphere Application Server V7.0 Fix Pack 35
8.5.5.4: WebSphere Application Server V8.5.5 Fix Pack 4
8.0.0.10: WebSphere Application Server V8.0 Fix Pack 10
7.0.0.37: WebSphere Application Server V7.0 Fix Pack 37
8.5.5.5: WebSphere Application Server V8.5.5 Fix Pack 5
8.5.5.6: WebSphere Application Server V8.5.5 Fix Pack 6
8.0.0.11: WebSphere Application Server V8.0 Fix Pack 11
8.5.5.7: WebSphere Application Server V8.5.5 Fix Pack 7
7.0.0.39: WebSphere Application Server V7.0 Fix Pack 39
8.5.5.8: WebSphere Application Server V8.5.5 Fix Pack 8
8.0.0.12: WebSphere Application Server V8.0 Fix Pack 12
8.5.5.9: WebSphere Application Server V8.5.5 Fix Pack 9
7.0.0.41: WebSphere Application Server V7.0 Fix Pack 41
8.5.5.10: WebSphere Application Server V8.5.5 Fix Pack 10
8.5.5.11: WebSphere Application Server V8.5.5 Fix Pack 11
8.0.0.13: WebSphere Application Server V8.0 Fix Pack 13
7.0.0.43: WebSphere Application Server V7.0 Fix Pack 43
8.5.5.12: WebSphere Application Server V8.5.5 Fix Pack 12
8.0.0.14: WebSphere Application Server V8.0 Fix Pack 14
8.5.5.13: WebSphere Application Server V8.5.5 Fix Pack 13
7.0.0.45: WebSphere Application Server V7.0 Fix Pack 45
8.0.0.15: WebSphere Application Server V8.0 Fix Pack 15
7.0.0.45: Java SDK 1.6 SR16 FP60 Cumulative Fix for WebSphere Application Server
7.0.0.35: Java SDK 1.6 SR16 FP1 Cumulative Fix for WebSphere Application Server
7.0.0.37: Java SDK 1.6 SR16 FP3 Cumulative Fix for WebSphere Application Server
7.0.0.39: Java SDK 1.6 SR16 FP7 Cumulative Fix for WebSphere Application Server
7.0.0.41: Java SDK 1.6 SR16 FP20 Cumulative Fix for WebSphere Application Server
7.0.0.43: Java SDK 1.6 SR16 FP41 Cumulative Fix for WebSphere Application Server
8.5.5.14: WebSphere Application Server V8.5.5 Fix Pack 14

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APAR status

  • Closed as program error.

Error description

  • A RST packet is sent on a connection if data is left in the OS
    TCP buffers
    

Local fix

Problem summary

  • ****************************************************************
    * USERS AFFECTED:  IBM WebSphere Application Server Version    *
    *                  7.0, 8.0, 8.5.5 users                       *
    ****************************************************************
    * PROBLEM DESCRIPTION: The HTTP Channel could cause the        *
    *                      Operating System to send an RST         *
    *                      packet when the connection is closed    *
    ****************************************************************
    * RECOMMENDATION:                                              *
    ****************************************************************
    When the HTTP Channel closes the connection after a request is
    complete there could be a few bytes left in the Operating
    System TCP buffers. If this happens the connection will be
    closed by the Operating System with a RST packet rather
    than a FIN packet.
    

Problem conclusion

  • A new custom property will have the HTTP Channel read until
    it's told there is no more data when it's going to close the
    connection. The new custom property is:
    
    PurgeDataDuringClose(true/false:default-false)
    
    To set an HTTP Channel custom property please follow these
    instructions:
    
    http://pic.dhe.ibm.com/infocenter/wasinfo/v8r0/index.jsp?topic=%
    2Fcom.ibm.websphere.nd.multiplatform.doc%2Finfo%2Fae%2Fae%2Frrun
    _chain_httpcustom.html
    
    They are the same for all versions of WebSphere Application
    Server.
    
    The fix for this APAR is currently targeted for inclusion in
    fix packs 7.0.0.35, 8.0.0.10, and 8.5.5.3.  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

    PI11176

  • Reported component name

    WEBS APP SERV N

  • Reported component ID

    5724H8800

  • Reported release

    700

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt

  • Submitted date

    2014-02-06

  • Closed date

    2014-05-06

  • Last modified date

    2014-07-17

  • 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

    WEBS APP SERV N

  • Fixed component ID

    5724H8800

Applicable component levels

  • R700 PSY

       UP

  • R800 PSY

       UP

  • R850 PSY

       UP



Document information

More support for: WebSphere Application Server
General

Software version: 7.0

Reference #: PI11176

Modified date: 17 July 2014