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IV57753: CAA DOES NOT PREVENT ADDING AN EXISTING NODE TO THE CLUSTER APPLIES TO AIX 7100-03

A fix is available

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APAR status

  • Closed as program error.

Error description

  • It can happen that CAA is asked to add an existing
    cluster node to a cluster as a completely new node.
    This leads to the cluster temporary inconsistency as
    repository uuids are duplicated.
    The inconsistent state is resolved next by stopping
    the duplicated cluster node followed by an AIX reboot.
    
    This kind of problem can occur when a hostname change
    has been implemented and managed by PowerHA 7.1.3,
    e.g.
    - When an application server does a temporary hostname
    change and the change is propagated to the CAA cluster
    because the CAA cluster is configured to track hostname
    changes.
    Propagating a hostname change to the CAA cluster can be
    enforced by running the following PowerHA command:
    # clmgr modify cluster TEMP_HOSTNAME=allow
    

Local fix

  • There is no workaround to the problem.
    

Problem summary

  • If an existing node (but hostname specified in a different
    manner) is requested to be added to a cluster, it is possible
    for the ADD_NODE to succeed but the JOIN_NODE to fail.
    

Problem conclusion

  • Add a check such that the ADD_NODE will fail if the target node
    is already in the cluster.
    

Temporary fix

Comments

  • 6100-08 - use AIX APAR IV58672
    6100-09 - use AIX APAR IV57307
    6100-09 - use AIX APAR IV57307
    6100-09 - use AIX APAR IV57307
    6100-09 - use AIX APAR IV57307
    7100-02 - use AIX APAR IV58185
    7100-03 - use AIX APAR IV57753
    7100-04 - use AIX APAR IV58101
    

APAR Information

  • APAR number

    IV57753

  • Reported component name

    AIX V7.1

  • Reported component ID

    5765H4000

  • Reported release

    710

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Submitted date

    2014-03-27

  • Closed date

    2014-03-27

  • Last modified date

    2016-05-10

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

    IV57307

  • 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 #: IV57753

Modified date: 10 May 2016