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IT40397: MULTIPLE CLIENTS MAKING SIMULTANEOUS REQUEST TO RESOURCE-MANAGERSTATISTICS CAN LEAD TO INTEGRATION SERVER ABEND

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APAR status

  • Closed as program error.

Error description

  • Multiple clients making  simultaneous request to
    resource-manager statistics can lead to  the integration server
    abend.
    
    The typical abend stack seen in such situation is :
    _ZN19ImbOdbcStatsManager16reportStatistics
    
    _ZNK18ImbResourceManager22getLiveStateStatistics
    
    _ZNK18ImbResourceManager12getLiveState
    
    _ZNK18ImbDatabaseManager12getLiveState
    _ZN18ImbAdminRESTHelper43populateConfigObject
    
    The resource manager stats request is of following form :
    curl -X GET
    http://{host:port}/apiv2/servers/{IS}/resource-managers?depth=2
    
    The ACE Toolkit also makes similar REST Admin query when
    establishing connection with Int Node.  So if multiple Toolkits
    try to connect to same Integration Node,  it can lead to
    Integration Server abend.
    

Local fix

Problem summary

  • ****************************************************************
    USERS AFFECTED:
    All users of App Connect Enterprise V12.0 with <span
    style="background-color:rgb(255, 255, 255)">resource-manager
    statistics enabled. </span>
    
    
    Platforms affected:
    MultiPlatform
    
    ****************************************************************
    PROBLEM DESCRIPTION:
    Multiple client threads making simultaneous requests to the
    resource-manager statistics can lead to the integration server
    abend.
    
    The typical abend stack seen in such situation is :
    
    _ZN19ImbOdbcStatsManager16reportStatistics
    _ZNK18ImbResourceManager22getLiveStateStatistics
    _ZNK18ImbResourceManager12getLiveState
    _ZNK18ImbDatabaseManager12getLiveState
    _ZN18ImbAdminRESTHelper43populateConfigObject
    
    OR
    
    ------------------
    prime_pool_mt []
    _Znwm [/usr/lib/libc++.a(cxxabi_64.o)]
    _ZN10ImbMessageC2EPK17ImbNamedLogSource
    _ZNK18ImbResourceManager22getLiveStateStatistics
    _ZNK18ImbResourceManager12getLiveStateEP15
    _ZNK16ImbNodejsManager12getLiveStateEP15ImbConfigObject
    _ZN18ImbAdminRESTHelper43populateConfigObject
    ----------------------
    
    The resource manager statistics request is of following form :
    curl -X GET
    http://{host:port}/apiv2/servers/{IS}/resource-managers?depth=2
    
    The App Connect Toolkit also makes a similar REST Admin query
    when establishing a connection with the integration node. So if
    multiple Toolkits try to connect to the same Integration Node,
     it can also lead to an Integration Server abend.
    

Problem conclusion

Temporary fix

Comments

APAR Information

  • APAR number

    IT40397

  • Reported component name

    APP CONNECT ENT

  • Reported component ID

    5724J0560

  • Reported release

    C00

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt / Xsystem

  • Submitted date

    2022-03-24

  • Closed date

    2022-06-10

  • Last modified date

    2022-06-10

  • 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

    5724J0560

Applicable component levels

[{"Line of Business":{"code":"LOB45","label":"Automation"},"Business Unit":{"code":"BU059","label":"IBM Software w\/o TPS"},"Product":{"code":"SSDR5J","label":"IBM App Connect Enterprise"},"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"C00"}]

Document Information

Modified date:
11 June 2022