IBM Support

LO76487: DERBY.INDEX-STAT-THREAD USES EXCESSIVE CPU

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You can track all active APARs for this component.

 

APAR status

  • Closed as program error.

Error description

  • After updating from older releases of Traveler CPU usage may
    have increased due to a bug in the Derby DB component.  A thread
     named "derby.index-stat-thread" will consume excessive CPU and
    degrade DB and system performance.
    

Local fix

  • Configure derby setting that will prevent index stats from being
     updated automatically (derby.storage.indexStats.auto=false)
          - Create file <domino data>\traveler\derby.properties
          - Add one line to this file:
             derby.storage.indexStats.auto=false
          - Restart Traveler to pick up this configuration change
    Note: remove this file after APAR has been applied
    

Problem summary

  • After multiple upgrades the derby database may use higher than
    normal CPU.  This problem is only seen after upgrade of a stand
    alone Notes Traveler server.
    

Problem conclusion

  • The Notes Traveler server was updated to turn off by default the
    auto storage stats which were driving the high CPU.
    

Temporary fix

Comments

APAR Information

  • APAR number

    LO76487

  • Reported component name

    LOTUS NOTES TRA

  • Reported component ID

    5724E6204

  • Reported release

    900

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt

  • Submitted date

    2013-08-02

  • Closed date

    2013-08-26

  • Last modified date

    2013-08-26

  • 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

    LOTUS NOTES TRA

  • Fixed component ID

    5724E6204

Applicable component levels

  • R900 PSY

       UP

[{"Business Unit":{"code":"BU048","label":"IBM Software"}, "Product":{"code":"SSYRPW","label":"Lotus Notes Traveler"},"Component":"","ARM Category":[],"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"9.0","Edition":""}]

Document Information

Modified date:
26 August 2013