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IC92507: DATAPOWER DOES NOT USE NEXT DNS IN THE LIST AFTER RECEIVING "SERVFAIL"

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You can track all active APARs for this component.

APAR status

  • Closed as program error.

Error description

  • When communicating to a DNS server, if DataPower receives a
    server failure
    message, DataPower does not use the next DNS server in the list.
    

Local fix

Problem summary

  • Affected are DNS configurations with multiple
    DNS servers and the round-robin algorithm.
    
    In case a DNS server returns an error response code, Datapower
    might wait up to one second and then retry the query to the same
    server, causing an unnecessary delay before trying the next DNS
    server.
    
    This is due to an incorrect algorithm handling DNS
    error responses. The fixed code generates a query to the next
    DNS server immediately on reception of an error DNS response.
    

Problem conclusion

Temporary fix

Comments

APAR Information

  • APAR number

    IC92507

  • Reported component name

    DATAPOWER BLAD

  • Reported component ID

    DPBLADE01

  • Reported release

    382

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt

  • Submitted date

    2013-05-23

  • Closed date

    2013-06-26

  • Last modified date

    2013-08-09

  • 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 BLAD

  • Fixed component ID

    DPBLADE01

Applicable component levels

  • R402 PSN

       UP

  • R500 PSN

       UP

  • R600 PSN

       UP



Document information

More support for: WebSphere DataPower Integration Blade XI50B

Software version: 3.8.2

Reference #: IC92507

Modified date: 09 August 2013