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

ITNMIP_Patch_V3.8.0.89_Win32
3.8.0-TIV-ITNMIP-Solaris-REF-FP0007
3.8.0-TIV-ITNMIP-Linux-REF-FP0007
ITNMIP_Patch_V3.8.0.89_AIXPPC32
IBM Tivoli Network Manager IP 3.9.0 Fix Pack 3, 3.9.0-TIV-ITNMIP-FP0003
IBM Tivoli Network Manager IP 3.9.0 Fix Pack 4, 3.9.0-TIV-ITNMIP-FP0004
IBM Tivoli Network Manager IP Edition 3.9.0 Fix Pack 5, 3.9.0-TIV-ITNMIP-FP0005

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 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