IC84743: MEMORY USED IN WSM AGENT STATUS INCREASES OVER TIME FOR MULTI-PROTOCOL GATEWAY SERVICE

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You can track all active APARs for this component.

APAR status

  • Closed as program error.

Error description

  • The DataPower web services management (WSM) component, used for
    data collection with ITCAM SOA, has a configured maximum for
    memory.  When metrics are collected at high volume for many
    services, the memory used for the WSM agent can climb over time,
    until eventually, the maximum memory allowed in the WSM
    configuration is reached.  When the WSM maximum memory is
    reached, metrics are no longer provided to ITCAM SOA.
    This issue is more prevalent with Multi-Protocol Gateway
    services than with Web Service Proxy services.
    This issue also occurs with the fix for APAR IC78913.
    To verify this fix after it has been applied, execute a
    controlled test following these steps:
    1. Arrange to be the only client sending traffic to the
        services in your application domain.
    2. Stop the ITCAM SOA Data Collector so that it is not
        subscribed to your DataPower application domain
    3. In a DataPower SSH session:  show wsm-agent-status,
       or in the DataPower Web GUI review the WSM agent status,
       for the application domain being monitored by ITCAM SOA.
    
       Confirm that Active Subscribers is 0 and the number of
       Pending Records is zero.  Note the Memory Used.
    4.  Send dozens of requests to services in that application
         domain so WSM agent status Memory Used increases.
    5. Review the WSM agent status again.  Note the increase
        In Memory Used and the number of Complete Records.
        Confirm the number of Pending records remains zero.
    6. Start the ITCAM SOA data collector
    7. Review the WSM agent status again.  The Complete Records
        should be zero, the Active Subscribers should be 1, the
        Pending records should be zero.
        When the Memory Used is also zero, the APAR fix is verified.
        The WSM Agent Status should show 0 memory used
        after installation of this APAR fix when there are zero
        Complete Records and zero Pending records.
    

Local fix

Problem summary

  • Affected is data collection with ITCAM SOA.
    
    High volume traffic or many services being monitored might stop
    providing metrics to ITCAM SOA.
    

Problem conclusion

  • A fix is available in 3.8.2.14, 4.0.1.12, 4.0.2.8 and 5.0.0.1
    

Temporary fix

Comments

APAR Information

  • APAR number

    IC84743

  • Reported component name

    DATAPOWER

  • Reported component ID

    DP1234567

  • Reported release

    381

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt

  • Submitted date

    2012-06-20

  • Closed date

    2012-07-18

  • Last modified date

    2012-12-05

  • 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

    DATAPOWER

  • Fixed component ID

    DP1234567

Applicable component levels

  • R382 PSY

       UP

  • R401 PSY

       UP

  • R402 PSY

       UP

  • R500 PSY

       UP



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Document information


More support for:

WebSphere DataPower SOA Appliances
General

Software version:

3.8.1

Reference #:

IC84743

Modified date:

2012-12-05

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