IBM Support

IT36196: MEMORY LEAK WHEN PUBLISHING STATISTICS TO WEB-UI

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APAR status

  • Closed as program error.

Error description

  • When publishing Accounting and Statistics messages for
    consumption in the Web-UI a buffer is created that is
    associated with the lifetime of a node.js object used to
    perform the publication. Because the size of this node.js is
    very small it may be a long time before the object is garbage
    collected and in the meantime the buffer is not released
    resulting in a memory leak.
    
    It is possible to workaround this
    issue by disabling Accounting and Statistics in the
    server.conf.yaml file.
    

Local fix

  • It is possible to workaround this issue by disabling Accounting
    and Statistics in the server.conf.yaml file.
    

Problem summary

  • ****************************************************************
    USERS AFFECTED:
    All users of App Connect Enterprise version 11.
    
    
    Platforms affected:
    MultiPlatform
    
    ****************************************************************
    PROBLEM DESCRIPTION:
    <span style="background-color:rgb(255, 255, 255)">When
    publishing Accounting and Statistics messages for </span><span
    style="background-color:rgb(255, 255, 255)">consumption in the
    Web-UI a buffer is created that is </span><span
    style="background-color:rgb(255, 255, 255)">associated with the
    lifetime of a node.js object used to </span><span
    style="background-color:rgb(255, 255, 255)">perform the
    publication. Because the size of this node.js is </span><span
    style="background-color:rgb(255, 255, 255)">very small it may be
    a long time before the object is garbage </span><span
    style="background-color:rgb(255, 255, 255)">collected and in the
    meantime the buffer is not released </span><span
    style="background-color:rgb(255, 255, 255)">resulting in a
    memory leak.                                    </span>
    <span style="background-color:rgb(255, 255, 255)">
    
    </span>
    <span style="background-color:rgb(255, 255, 255)">It is possible
    to workaround this </span><span style="background-color:rgb(255,
    255, 255)">issue by disabling Accounting and Statistics in the
    </span><span style="background-color:rgb(255, 255,
    255)">server.conf.yaml file.       </span>
    

Problem conclusion

  • App Connect Enterprise has been updated so that it now registers
    the amount of native memory allocated for these buffers with the
    node.js engine. This allows node.js to garbage collect the
    objects in a timely manner.
    
    ---------------------------------------------------------------
    The fix is targeted for delivery in the following PTFs:
    
    Version    Maintenance Level
    v11.0      11.0.0.12
    
    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

    IT36196

  • 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

    2021-03-12

  • Closed date

    2021-03-22

  • Last modified date

    2021-03-22

  • 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

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

Document Information

Modified date:
23 March 2021