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IZ40818: TEPS ABEND WHEN NO NODES ARE PRESENT IN PHYSICAL NAVIGATOR

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You can track all active APARs for this component.

 

APAR status

  • Closed as program error.

Error description

  • Environment:
    TEPS on AIX, but possibly other environments as well.
    This is not a regression, since the failing code has been in
    the product for a long time.
    
    Problem Description:
      If the TEPS is defined with only MQ Configurator agents, then
    there are no visible nodes except the Enterprise node.  If the
    offline entry is done from the managed system status table,
    the TEPS will abend during the destructor of an intermediate
    graph which has a null pointer as part of the graph object.
    This should not abend.
    

Local fix

  • A work around to prevent the abend is to have an MQ agent that
    comes online.  This will circumvent the code in error and the
    TEPS will not abend.
    

Problem summary

  • When offline nodes are cleared and there are no nodes left on
    the Physical Navigator tree except the Enterprise node, the TEPS
    process abends with:
    
    Segmentation fault in
    destroy__22VISResourceImplFactoryFP15VISResourceImpl
    

Problem conclusion

  • When an offline node is cleared, the TEPS navigator is updated
    to remove the node.  When there are no viewable nodes left, a
    graph with no nodes is returned.  When the destructor for this
    graph is called it tries to free the associated nodes.  Since no
    nodes exist, the process abends with:
    
    Segmentation fault in
    destroy__22VISResourceImplFactoryFP15VISResourceImpl
    
    The code was modified such that the method that returns a graph
    with no nodes, returns a null graph instead.  This prevents the
    destructor from attempting to free non-existent nodes.
    
    
    The fix for this APAR is contained in the following maintenance
    packages:
    
       | interim fix | 6.2.0.2-TIV-ITM-IF0001
    

Temporary fix

Comments

APAR Information

  • APAR number

    IZ40818

  • Reported component name

    TEPS

  • Reported component ID

    5724C04PS

  • Reported release

    620

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt

  • Submitted date

    2009-01-05

  • Closed date

    2009-02-17

  • Last modified date

    2009-02-17

  • 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

    TEPS

  • Fixed component ID

    5724C04PS

Applicable component levels

  • R620 PSY

       UP

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Document Information

Modified date:
17 February 2009