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IT19531: DATAPOWER ODR PROCESSING IS NOT WORKING CORRECTLY FOR CERTAIN DYNAMIC-BACKEND SCENARIOS

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You can track all active APARs for this component.

APAR status

  • Closed as program error.

Error description

  • When using an API collective member (which is running on node js
    for micro service) as part of the API connect platform. In this
     case, the symptom was receiving HTTP 503 errors when ODR tries
    connecting to api collective backend.  The 503 error is because
    ODR incorrectly thinks the maximum number of connections of WAS
    was reached.
    

Local fix

  • 1. Use a log target set with an event target to call CLI to
    reset ODR object. The event target will monitor for the
    "outstanding request count" when it gets close to the failure
    event, "outstanding requests 99999 exceeded maximum 99999
    connections".
    
    
    
    2. Create a MPGW with type "Static Backend" set to handle the
    call (http://ODR-DYN)to the odrlib. client <---> DP/MPGW with
    DynamicBE that calls to loopback <---> MPGW with StaticBE that
    calls odrlib <---> BE(Backend).
    

Problem summary

  • ODR problems with memory leak and getting HTTP 503 errors when
    ODR connects to an API collective backend.
    

Problem conclusion

Temporary fix

Comments

APAR Information

  • APAR number

    IT19531

  • Reported component name

    DATAPOWER

  • Reported component ID

    DP1234567

  • Reported release

    750

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt / Xsystem

  • Submitted date

    2017-03-03

  • Closed date

    2017-03-28

  • Last modified date

    2017-06-14

  • APAR is sysrouted FROM one or more of the following:

  • APAR is sysrouted TO one or more of the following:

Modules/Macros

  • 0
    

Fix information

  • Fixed component name

    DATAPOWER

  • Fixed component ID

    DP1234567

Applicable component levels

  • R752 PSY

       UP



Document information

More support for: IBM DataPower Gateways
General

Software version: 750

Reference #: IT19531

Modified date: 14 June 2017