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IV55502: CLCOMD MAY HANG IF UNDER HIGH LOAD DURING CAA TOPOLOGY CHANGE APPLIES TO AIX 7100-03

A fix is available

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APAR status

  • Closed as program error.

Error description

  • Clcomd may appear to hang if many operations such as clcmd,
    clrcp, or clrsh are performed at a high frequency at the same
    time that a change in the cluster topology is made using
    chcluster or when stopping/starting a node with clctrl
    

Local fix

Problem summary

  • ****************************************************************
    * USERS AFFECTED:
    * Systems running the 7100-03 Technology Level with the
    * bos.cluster.rte fileset below the 7.1.3.15 level.
    ****************************************************************
    * PROBLEM DESCRIPTION:
    * Clcomd may appear to hang if many operations such as clcmd,
    * clrcp, or clrsh are performed at a high frequency at the same
    * time that a change in the cluster topology is made using
    * chcluster or when stopping/starting a node with clctrl
    ****************************************************************
    * RECOMMENDATION:
    * Install APAR IV55502.
    ****************************************************************
    

Problem conclusion

  • Clcomd internal state logic was improved to handle this
    condition.
    

Temporary fix

Comments

  • 6100-07 - use AIX APAR IV58411
    6100-08 - use AIX APAR IV57933
    6100-09 - use AIX APAR IV55487
    6100-09 - use AIX APAR IV55487
    6100-09 - use AIX APAR IV55487
    7100-01 - use AIX APAR IV57717
    7100-02 - use AIX APAR IV57100
    7100-03 - use AIX APAR IV55502
    7100-04 - use AIX APAR IV55689
    

APAR Information

  • APAR number

    IV55502

  • Reported component name

    AIX V7.1

  • Reported component ID

    5765H4000

  • Reported release

    710

  • Status

    CLOSED PER

  • PE

    YesPE

  • HIPER

    NoHIPER

  • Submitted date

    2014-02-14

  • Closed date

    2014-02-14

  • Last modified date

    2016-05-10

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

    IV55487

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

Fix information

  • Fixed component name

    AIX V7.1

  • Fixed component ID

    5765H4000

Applicable component levels

  • R710 PSY U859720

       UP14/05/22 I 1000

PTF to Fileset Mapping



Document information

More support for: AIX Enterprise Edition

Software version: 710

Operating system(s): AIX

Reference #: IV55502

Modified date: 10 May 2016