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IT17927: IMS CALLOUT HANDLER MIGHT DELAY SENDING RESPONSE BACK TO IMS CONNECT SERVER.

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APAR status

  • Closed as program error.

Error description

  • While processing IMS Callout transactions, DataPower might delay
    (up to 5 seconds) sending back a response message to the IMS
    Connect server even though the DataPower system and latency logs
    show the transaction has completed in time. The delay is in
    getting a new response connection created when the connection
    pool is empty. This behavior can lead to late delivery of
    response messages triggering a DataPower error message similar
    to the following:
    
    [0x8c800015][ims][error] source-ims-callout(IMS_Callout_FSH):
    Fail to deliver response (length: 1748, correlation token
    0x0028XXXXXXXXXXXXXXXXXXXXXXXXXX). Error: imsConnectReturnCode =
    [16] imsConnectReasonCode = [0] otmaSenseCode        =
    [53]otmaReasonCode       = [1].
    
    If the IMS Callout Handler is configured with a response
    concurrency of 1 and this issue occurs, response messages might
    get queued up and delivered by the IMS Callout Handler one at a
    time with 5 seconds in between each delivery.
    
    This behavior might be triggered upon first late delivery of a
    response message by the IMS Callout Handler due to increased
    latency on DataPower while processing the transaction.
    

Local fix

Problem summary

  • DataPower user who uses IMS Callout Front Side Handler may
    take more time to respond the message, if it fails to deliver
    the response.
    

Problem conclusion

Temporary fix

Comments

APAR Information

  • APAR number

    IT17927

  • Reported component name

    DATAPOWER

  • Reported component ID

    DP1234567

  • Reported release

    751

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt / Xsystem

  • Submitted date

    2016-11-11

  • Closed date

    2017-01-10

  • Last modified date

    2017-01-18

  • 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

  • R720 PSY

       UP

  • R750 PSY

       UP

  • R751 PSY

       UP

  • R752 PSY

       UP



Document information

More support for: IBM DataPower Gateways
General

Software version: 751

Reference #: IT17927

Modified date: 18 January 2017