IBM Support

IT32951: INTERMITTENT ABENDS IN INTEGRATION SERVER REST IPC MANAGER

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APAR status

  • Closed as program error.

Error description

  • Intermittent abends on Windows of integration servers and
    integration node agent processes due to
    EXCEPTION_ACCESS_VIOLATION may be seen with the following call
    stacks information.
    
    
    
    DataFlowEngine process:
    
    
    
    ntdll!RtlCap
    tureContext+0x3c3<NLN:487>
    
    CommonServices!?accept@ImbIPCHTTPSer
    ver@@QEAAPEAVImbCommsInterface@@_J@Z+0x39<NLN:487>
    
    CommonServic
    es!?acceptConnectionLoop@ImbIPCHTTPServer@@QEAAXH@Z+0xd7<NLN:487
    >
    
    AdminServices!?copyWebUserData@ImbBackupToWorkDirWriter@@UEAA
    XPEAVCursor@ImbZipFile@@PEBVImbInitialisationDataInterface@@PEAV
    4@H@Z+0x1b00<NLN:487>
    
    CommonServices!?run@ImbThreadPoolExecutor
    @@AEAAXXZ+0x63<NLN:487>
    
    CommonServices!?unforceAllThreads@ImbTh
    readPool@@QEAAXXZ+0x373d<NLN:487>
    
    CommonServices!?reduceUsageCo
    unts@ImbThreadPool@@AEAAXPEAX@Z+0x200<NLN:487>
    
    CommonServices!?
    threadRun@ImbOsThread@@IEAAKXZ+0x123<NLN:487>
    
    CommonServices!?t
    hreadBootStrap@ImbOsThread@@KAIPEAX@Z+0x9e<NLN:487>
    
    
    
    
    bipbroker process:
    
    
    
    ntdll!RtlCaptureContext+0x3c3<NLN:487>
    
    
    CommonServices!?accept@ImbIPCHTTPServer@@QEAAPEAVImbCommsInterf
    ace@@_J@Z+0x39<NLN:487>
    
    CommonServices!?acceptConnectionLoop@Im
    bIPCHTTPServer@@QEAAXH@Z+0xd7<NLN:487>
    
    bipbroker!??4ImbShared@@
    QEAAAEAV0@AEBV0@@Z+0x19d00<NLN:487>
    
    CommonServices!?run@ImbThre
    adPoolExecutor@@AEAAXXZ+0x63<NLN:487>
    
    CommonServices!?unforceAl
    lThreads@ImbThreadPool@@QEAAXXZ+0x373d<NLN:487>
    
    CommonServices!
    ?reduceUsageCounts@ImbThreadPool@@AEAAXPEAX@Z+0x200<NLN:487>
    
    Co
    mmonServices!?threadRun@ImbOsThread@@IEAAKXZ+0x123<NLN:487>
    
    Com
    monServices!?threadBootStrap@ImbOsThread@@KAIPEAX@Z+0x9e<NLN:487
    >
    

Local fix

Problem summary

  • ****************************************************************
    USERS AFFECTED:
    All users of IBM App Connect Enterprise V11.
    
    
    Platforms affected:
    MultiPlatform
    
    ****************************************************************
    PROBLEM DESCRIPTION:
    Intermittent abends of integration servers and  integration node
    agent processes due to an EXCEPTION_ACCESS_VIOLATION may be
    seen, particularly on the Windows platform. This is due to a
    potential double free of a pointer to a named pipe, used for
    inter process communications (IPC), when handling a previous
    exception. The call stack information reported in the abend
    files will be similar to the following examples.
    
    DataFlowEngine process:
    
    ntdll!RtlCaptureContext
    CommonServices!?accept@ImbIPCHTTPServer
    CommonServices!?acceptConnectionLoop@ImbIPCHTTPServer
    AdminServices!?copyWebUserData@ImbBackupToWorkDirWriter
    CommonServices!?run@ImbThreadPoolExecutor
    CommonServices!?unforceAllThreads@ImbThreadPool
    CommonServices!?reduceUsageCounts@ImbThreadPool
    CommonServices!?threadRun@ImbOsThread
    CommonServices!?threadBootStrap@ImbOsThread
    
    bipbroker process:
    
    ntdll!RtlCaptureContext
    CommonServices!?accept@ImbIPCHTTPServer
    CommonServices!?acceptConnectionLoop@ImbIPCHTTPServer
    bipbroker!??4ImbShared
    CommonServices!?run@ImbThreadPoolExecutor
    CommonServices!?unforceAllThreads@ImbThreadPool
    CommonServices!?reduceUsageCounts@ImbThreadPool
    CommonServices!?threadRun@ImbOsThread
    CommonServices!?threadBootStrap@ImbOsThread
    

Problem conclusion

Temporary fix

Comments

APAR Information

  • APAR number

    IT32951

  • Reported component name

    APP CONNECT ENT

  • Reported component ID

    5724J0550

  • Reported release

    B00

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt / Xsystem

  • Submitted date

    2020-05-21

  • Closed date

    2020-06-10

  • Last modified date

    2020-06-10

  • 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

    APP CONNECT ENT

  • Fixed component ID

    5724J0550

Applicable component levels

[{"Business Unit":{"code":"BU053","label":"Cloud & Data Platform"},"Product":{"code":"SSDR5J","label":"IBM App Connect Enterprise"},"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"B00","Line of Business":{"code":"LOB36","label":"IBM Automation"}}]

Document Information

Modified date:
11 June 2020