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IV38381: WATCHDOG PROCESS (KCAWD) NOT START IF CANDLEHOME IS A SUBSET OF KCAWD CANDLEHOME ALREADY RUNNING.

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APAR status

  • Closed as program error.

Error description

  • Watchdog process (kcawd) does not start if CANDLEHOME path is a
    subset of a CANDLEHOME path where kcawd is already running on
    the system
    
    For example, kcawd already running under /opt/IBM/itm__11  then
    when kcawd is to be started in /opt/IBM/itm__1 it will think it
    is already running and not start it.
    

Local fix

Problem summary

  • Watchdog process (kcawd) does not start if another Watchdog
    process is already running on the system with a value for
    CANDLEHOME which is a superset of the first.  For example, it
    determines that kcawd for CANDLEHOME=/opt/IBM/ITM_1 is already
    running if there is a kcawd already running with a
    CANDLEHOME=/opt/IBM/ITM_10, since the first CANDLEHOME name is a
    subset of the second value.  This can occur on the Monitoring
    Agent for Linux or UNIX.
    

Problem conclusion

  • The code was incorrectly comparing the value for CANDLEHOME and
    the process command path for the kcawd process.   The code was
    changed to correctly compare the path names.
    
    
    The fix for this APAR is contained in the following maintenance
    packages:
    
      | fix pack | 6.2.3-TIV-ITM-FP0004
      | fix pack | 6.3.0-TIV-ITM-FP0002
    

Temporary fix

  • Start the OS Agent (which starts the Watchdog kcawd process) on
    the CANDLEHOME which is the shorter name first.  For example if
    there are two CANDLEHOMEs, /opt/IBM/ITM_1 and /opt/IBM/ITM_10,
    start the OS agent under /opt/IBM/ITM_1 first.  Once the
    Watchdog process (kcawd) has started, then start the OS agent
    under the longer CANDLEHOME name.
    

Comments

APAR Information

  • APAR number

    IV38381

  • Reported component name

    ITM AGENT LINUX

  • Reported component ID

    5724C04LN

  • Reported release

    623

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt

  • Submitted date

    2013-03-20

  • Closed date

    2013-07-12

  • Last modified date

    2013-10-15

  • 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

    ITM AGENT LINUX

  • Fixed component ID

    5724C04LN

Applicable component levels

  • R623 PSY

       UP

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Document Information

Modified date:
15 October 2013