IBM Support

IT32065: BIPBROKER AND DATAFLOWENGINE ABENDS IN SOCKET RECVTIMEOUT AND SENDTIMEOUT METHODS

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APAR status

  • Closed as program error.

Error description

  • If many message flows running under load make frequent
    connections to the integration node using the IBM Integration
    API (IAPI), then intermittent abends of the bipbroker and
    DataFlowEngine processes may be seen with the following call
    stacks:
    
    DataFlowEngine:
    recvTimeout__14ImbBasicSocketFPUcilb
    read__13ImbNamedCommsFR15ImbCommonBufferl
    receiveMessage__17ImbLocalCMPClientFlR15ImbCommonBuffer
    Java_com_ibm_broker_config_proxy_LocalCMPReceiver_startLocalCMPN
    ativeReceiverThread
    
    bipbroker:
    recvTimeout__14ImbBasicSocketFPUcilb
    read__13ImbNamedCommsFR15ImbCommonBufferl
    run__Q2_32ImbDeployManagerLocalCMPListener25ImbCMPClientHandlerT
    hreadFP11ImbOsThread
    run__27ImbThreadPoolThreadFunctionFP11ImbOsThread
    
    or
    
    sendTimeout__14ImbBasicSocketFPCUcil
    write__13ImbNamedCommsFR9ImbBufferl
    write__13ImbNamedCommsFR9ImbBuffer
    deliverResponseInner__Q2_32ImbDeployManagerLocalCMPListener25Imb
    CMPClientHandlerThreadFR15ImbCommonBuffer
    deliverResponse__32ImbDeployManagerLocalCMPListenerFRC10ImbWstri
    ngR15ImbCommonBuffer
    sendReplyMessage__21ImbDeployManagerCacheFRC10ImbWstringbR15ImbC
    ommonBuffer
    sendReplyMessage__21ImbDeployManagerCacheFP28ImbDeployManagerPro
    xySessionR15ImbCommonBuffer
    processRequestFromProxy__21ImbDeployManagerCacheFRC21ImbBuffered
    StringBase
    run__43ImbDeployManagerInMemoryQueueListenerThreadFP11ImbOsThrea
    d
    

Local fix

Problem summary

  • ****************************************************************
    USERS AFFECTED:
    All users of IBM Integration Bus V10 and IBM App Connect
    Enterprise V11 using the Integration API from message flows.
    
    
    Platforms affected:
    z/OS, MultiPlatform
    
    ****************************************************************
    PROBLEM DESCRIPTION:
    If many message flows running under load make frequent
    connections to the integration node using the IBM Integration
    API (IAPI), then intermittent abends of the bipbroker and
    DataFlowEngine processes may be seen with the following call
    stacks:
    
    DataFlowEngine:
    recvTimeout__14ImbBasicSocketFPUcilb
    read__13ImbNamedCommsFR15ImbCommonBufferl
    receiveMessage__17ImbLocalCMPClientFlR15ImbCommonBuffer
    Java_com_ibm_broker_config_proxy_LocalCMPReceiver_startLocalCMPN
    ativeReceiverThread
    
    bipbroker:
    recvTimeout__14ImbBasicSocketFPUcilb
    read__13ImbNamedCommsFR15ImbCommonBufferl
    run__Q2_32ImbDeployManagerLocalCMPListener25ImbCMPClientHandlerT
    hreadFP11ImbOsThread
    run__27ImbThreadPoolThreadFunctionFP11ImbOsThread
    
    or
    
    sendTimeout__14ImbBasicSocketFPCUcil
    write__13ImbNamedCommsFR9ImbBufferl
    write__13ImbNamedCommsFR9ImbBuffer
    deliverResponseInner__Q2_32ImbDeployManagerLocalCMPListener25Imb
    CMPClientHandlerThreadFR15ImbCommonBuffer
    deliverResponse__32ImbDeployManagerLocalCMPListenerFRC10ImbWstri
    ngR15ImbCommonBuffer
    sendReplyMessage__21ImbDeployManagerCacheFRC10ImbWstringbR15ImbC
    ommonBuffer
    sendReplyMessage__21ImbDeployManagerCacheFP28ImbDeployManagerPro
    xySessionR15ImbCommonBuffer
    processRequestFromProxy__21ImbDeployManagerCacheFRC21ImbBuffered
    StringBase
    run__43ImbDeployManagerInMemoryQueueListenerThreadFP11ImbOsThrea
    d
    
    The abends are due to a short timing window where one thread may
    be closing the socket whilst another thread is still
    reading/writing.
    

Problem conclusion

  • The product has been modified to ensure both read and write
    locks have been taken when closing or resetting a socket.
    
    ---------------------------------------------------------------
    The fix is targeted for delivery in the following PTFs:
    
    Version    Maintenance Level
    v10.0      10.0.0.21
    v11.0      11.0.0.9
    
    The latest available maintenance can be obtained from:
    http://www-01.ibm.com/support/docview.wss?rs=849&uid=swg27006041
    
    If the maintenance level is not yet available,information on
    its planned availability can be found on:
    http://www-1.ibm.com/support/docview.wss?rs=849&uid=swg27006308
    ---------------------------------------------------------------
    

Temporary fix

Comments

APAR Information

  • APAR number

    IT32065

  • Reported component name

    INTEGRATION BUS

  • Reported component ID

    5724J0540

  • Reported release

    A00

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt / Xsystem

  • Submitted date

    2020-03-04

  • Closed date

    2020-05-26

  • Last modified date

    2020-05-26

  • 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

    INTEGRATION BUS

  • Fixed component ID

    5724J0540

Applicable component levels

[{"Business Unit":{"code":"BU053","label":"Cloud & Data Platform"},"Product":{"code":"SSNQK6","label":"IBM Integration Bus"},"Platform":[{"code":"PF025","label":"Platform Independent"}],"Line of Business":{"code":"LOB36","label":"IBM Automation"}}]

Document Information

Modified date:
27 May 2020