IBM Support

IT35898: CHANGE DEFAULT VALUE OF HTTP LISTENER'S ENABLELOOKUPS PROPERTY TO FALSE.

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APAR status

  • Closed as program error.

Error description

  • The default value of EnableLookups property in integration node
    listener and integration server (embedded) listener is 'true'
    and it results in DNS lookup to populate values like
    X-Remote-Host header for the incoming requests. In some systems
    the DNS lookup take more time which causes poor performance for
    HTTPInput/SOAPInput node  message flows. The default value of
    this property in IBM Integration Bus is 'false' and this APAR
    changes the default value to 'false' in IBM App Connect as well
    to avoid the DNS lookup by the listeners.
    

Local fix

  • Run command 'mqsichangeproperties [IntegrationNode] -e
    [IntegrationServer] -o HTTPConnector -n EnableLookups -v false'
    to set the property value to false.
    

Problem summary

  • ****************************************************************
    USERS AFFECTED:
    All users of IBM App Connect Enterprise V11.0 using the
    HTTPInput/SOAPInput node.
    
    
    Platforms affected:
    z/OS, MultiPlatform
    
    ****************************************************************
    PROBLEM DESCRIPTION:
    The default value of EnableLookups property in integration node
    listener and integration server (embedded) listener is 'true'
    and it results in DNS lookup to populate values like
    X-Remote-Host header for the incoming requests. In some systems
    the DNS lookup take more time which causes poor performance for
    HTTPInput/SOAPInput node  based integration flows. The default
    value of this property in IBM Integration Bus is 'false'.
    

Problem conclusion

  • The default value of EnableLookups property in integration node
    listener and integration server (embedded) listener is now
    changed to 'false' in App Connect Enterprise V11.0
    
    ---------------------------------------------------------------
    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

    IT35898

  • 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

    2021-02-14

  • 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