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PI73950: ISSUING THE PAUSELISTENERS COMMAND IS CAUSING SOME HTTP REQUESTS TO FAIL.

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You can track all active APARs for this component.

 

APAR status

  • Closed as program error.

Error description

  • After issuing the PauseListeners command the Control Region
    logs may show HTTP request failed error messages.  This is
    because the accepted HTTP requests were not processed before
    before the PAUSELISTENERS took affect.
    Control Region Job Log error message:
    SourceId:com.ibm.ws390.xmem.proxy.channel.
    XMemProxyCRInboundConnLink.
    destroyCommonExtendedMessage: Entry;
    com.ibm.ws390.xmem.proxy.channel.
    XMemProxyCRInboundConnLink@33dd5c65,
    com.ibm.wsspi.http.channel.exception.HttpErrorException:
    Internal Server Failure... at
    com.ibm.wsspi.http.channel.
    error.HttpError.getClosingException(HttpError.java:83) at
    com.ibm.ws.http.channel.inbound.impl.
    HttpInboundServiceContextImpl.
    sendError(HttpInboundServiceContextImpl.java:1286) at
    com.ibm.ws390.xmem.proxy.channel.XMemProxyCRInboundConnLink.
    sendFailureResponse(XMemProxyCRInboundConnLink.java:1808) at
    com.ibm.ws390.xmem.proxy.XMemProxyCRCppUtilities.
    requestFailed(XMemProxyCRCppUtilities.java:265) at
    com.ibm.ws390.xmem.proxy.XMemProxyCRCppUtilities.
    queueInboundRequest(Native Method) at
    com.ibm.ws390.xmem.proxy.channel.XMemProxyCRInboundConnLink.
    flattenAndQueueRequest(XMemProxyCRInboundConnLink.java:1153) at
    com.ibm.ws390.xmem.proxy.channel.XMemProxyCRInboundConnLink.
    ready(XMemProxyCRInboundConnLink.java:475) at
    com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.
    handleDiscrimination(HttpInboundLink.java:463) at
    com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.
    handleNewRequest(HttpInboundLink.java:530) at
    com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.
    processRequest(HttpInboundLink.java:316) at
    com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.
    ready(HttpInboundLink.java:287) at
    com.ibm.ws.tcp.channel.impl.ZAioTCPChannel.
    newConnectionCommon(ZAioTCPChannel.java:740) at
    com.ibm.ws.tcp.channel.impl.ZAioTCPChannel.
    readCompletedNewConnection(ZAioTCPChannel.java:562) at
    com.ibm.ws.tcp.channel.impl.ZAioTCPChannelCPPUtilities.
    readCompletedNewConnection(ZAioTCPChannelCPPUtilities.java:160)
    ffdc logs may show:
    FFDC Exception:java.io.IOException
    SourceId:com.ibm.ws390.xmem.proxy.
    XMemProxyConnLink.flattenAndQueueRequest ProbeId:1229
    java.io.IOException: Exception occurred during native method
    call from
    JAVA at
    com.ibm.ws390.xmem.proxy.XMemProxyCRCppUtilities.
    queueInboundRequest(Native Method) at
    com.ibm.ws390.xmem.proxy.channel.XMemProxyCRInboundConnLink.
    flattenAndQueueRequest(XMemProxyCRInboundConnLink.java:1153) at
    com.ibm.ws390.xmem.proxy.channel.XMemProxyCRInboundConnLink.
    ready(XMemProxyCRInboundConnLink.java:475) at
    com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.
    handleDiscrimination(HttpInboundLink.java:463) at
    com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.
    handleNewRequest(HttpInboundLink.java:530) at
    com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.
    processRequest(HttpInboundLink.java:316) at
    com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.
    ready(HttpInboundLink.java:287) at
    com.ibm.ws.tcp.channel.impl.ZAioTCPChannel.
    newConnectionCommon(ZAioTCPChannel.java:740) at
    com.ibm.ws.tcp.channel.impl.ZAioTCPChannel.
    readCompletedNewConnection(ZAioTCPChannel.java:562) at
    com.ibm.ws.tcp.channel.impl.ZAioTCPChannelCPPUtilities.
    readCompletedNewConnection(ZAioTCPChannelCPPUtilities.java:160)
    

Local fix

  • N/A
    

Problem summary

  • ****************************************************************
    * USERS AFFECTED:  All users of IBM WebSphere Application      *
    *                  Server V8.5 and V9.0                        *
    ****************************************************************
    * PROBLEM DESCRIPTION: WebSphere Application Server for z/OS   *
    *                      produced a java.io.IOException          *
    *                      processing a HTTP request while         *
    *                      paused.                                 *
    ****************************************************************
    * RECOMMENDATION:                                              *
    ****************************************************************
    A "f <server>,pauselisteners" z/OS command was issued to the
    Server.   Internal processing of the Server will immediately
    start to reject certain requests after the pause.  Any
    received HTTP or HTTP SSL request that was received just
    prior to the pauselisteners command may be rejected and receive
    the following exception:
    java.io.IOException: Exception occured during native method
    call from JAVA
    at com.ibm.ws390.xmem.proxy.XMemProxyCRCppUtilities.
    queueInboundRequest(Native Method)
    at com.ibm.ws390.xmem.proxy.channel.
    XMemProxyCRInboundConnLink.flattenAndQueueRequest(
    XMemProxyCRInboundConnLink.java:1153)
    at com.ibm.ws390.xmem.proxy.channel.
    XMemProxyCRInboundConnLink.ready(
    XMemProxyCRInboundConnLink.java:475)
    at com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.
    handleDiscrimination(HttpInboundLink.java:463)
    at com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.
    handleNewRequest(HttpInboundLink.java:530)
    at com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.
    processRequest(HttpInboundLink.java:316)
    at com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.
    ready(HttpInboundLink.java:287)
    at com.ibm.ws.tcp.channel.impl.ZAioTCPChannel.
    newConnectionCommon(ZAioTCPChannel.java:740)
    at com.ibm.ws.tcp.channel.impl.ZAioTCPChannel.
    readCompletedNewConnection(ZAioTCPChannel.java:562)
    at com.ibm.ws.tcp.channel.impl.ZAioTCPChannelCPPUtilities.
    readCompletedNewConnection(
    ZAioTCPChannelCPPUtilities.java:160)
    

Problem conclusion

  • Code has been modified to allow an HTTP request that was
    inflight when the Server was paused to be processed as long as
    a Servant is available.
    
    The connection will be closed and subsequent connect requests
    will fail until the Server is resumed.
    
    
    APAR PI73950 is currently targeted for inclusion in Fix Packs
    8.5.5.12 and 9.0.0.4 of WebSphere Application Server.
    
    Please refer to the Recommended Updates page for delivery
    information:
    http://www.ibm.com/support/docview.wss?rs=180&uid=swg27004980
    
    In addition, please refer to URL:
    http://www.ibm.com/support/docview.wss?rs=404&uid=swg27006970
    for Fix Pack PTF information.
    

Temporary fix

Comments

APAR Information

  • APAR number

    PI73950

  • Reported component name

    WEBSPHERE FOR Z

  • Reported component ID

    5655I3500

  • Reported release

    850

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt / Xsystem

  • Submitted date

    2016-12-17

  • Closed date

    2017-02-20

  • Last modified date

    2017-02-27

  • 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 FOR Z

  • Fixed component ID

    5655I3500

Applicable component levels

  • R850 PSY

       UP

[{"Business Unit":{"code":"BU053","label":"Cloud \u0026 Data Platform"},"Product":{"code":"SS7K4U","label":"WebSphere Application Server for z\/OS"},"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"850","Line of Business":{"code":"LOB36","label":"IBM Automation"}}]

Document Information

Modified date:
18 October 2021