IV22788: UNMANAGE/MANAGE ACTION CAUSES BACKUP POLLER TO POLL DEVICE.

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You can track all active APARs for this component.

APAR status

  • Closed as program error.

Error description

  • Unmanage/manage action causes backup poller to poll device.
    Product: Tivoli Network Manager
    Version: 3.8   While the PMR was raised against FP4, this was
    replicated on FP6 (build 75).
    Component: ncp_poller
    Platform: any
    
    Symptom:
    In a failover environment with a Primary and Backup Poller
    running, with the Primary domain healthy and acting primary, if
    the user unmanages, then manages a device, the backup poller
    will begin polling that device, and raising duplicate events.
    
    Replication:
    In a failover architecture, with just the Default Chassis Ping
    policy running, select any device from the network view and open
    the structure viewer.  Then from the Tools menu, set the device
    to Unmanaged.
    Tail the backup poller's SnmpPoller.trace file in debug 4 and
    wait for the update from the Primary poller to be received by
    the backup Poller.  The update message contains the string:
    
    CModelMgr.cc(200): Received an update notification from model
    for entity ID
    
    ... followed by the entity's ID.  Once seen, manage the device
    again.  A packet trace from the backup server shows that the
    backup Poller is now monitoring the altered device, as well as
    the primary Poller.
    
    Note: No failover has occurred, the primary domain should be
    healthy and should be the acting primary throughout the
    replication.
    

Local fix

  • Stop and restart the Backup ITNM domain to reset the backup
    Poller's behaviour.
    

Problem summary

  • ****************************************************************
    * USERS AFFECTED:                                              *
    * ITNM users using failover                                    *
    ****************************************************************
    * PROBLEM DESCRIPTION:                                         *
    * In a failover environment with a Primary and Backup          *
    * running, with the Primary domain healthy and acting primary, *
    * if                                                           *
    * the user unmanages, then manages a device, the backup poller *
    * will begin polling that device, and raising duplicate        *
    * events.                                                      *
    ****************************************************************
    * RECOMMENDATION:                                              *
    * | fix pack | 3.8.0-ITNMIP-FP0007                             *
    * | fix pack | 3.9.0-ITNMIP-FP0004                             *
    ****************************************************************
    

Problem conclusion

  • added verification of failover status
    

Temporary fix

Comments

APAR Information

  • APAR number

    IV22788

  • Reported component name

    NC/PRECISIONIP

  • Reported component ID

    5724O52RC

  • Reported release

    380

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt

  • Submitted date

    2012-06-11

  • Closed date

    2013-02-19

  • Last modified date

    2013-11-05

  • 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

    NC/PRECISIONIP

  • Fixed component ID

    5724O52RC

Applicable component levels

  • R380 PSN

       UP

  • R380 PSY

       UP

  • R390 PSN

       UP

  • R390 PSY

       UP



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Document information


More support for:

Tivoli Network Manager IP Edition
Discovery and RCA

Software version:

380

Reference #:

IV22788

Modified date:

2013-11-05

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