IV43944: DISCOVERY TIME INCREASE AFTER EACH FULL DISCO PROCESS.

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

• ITNM 3.9 FP3
  
  ------------------
  Description:
  
  The
  problem
  is that discovery keeps on taking longer and longer the more
  often it
  runs. Let's have a look at the following example (it happens for
  all the
  domains, the extract is taken from the disco trace file in
  Domain
  
  
  First time, it takes about 2,5 hours:
  
  Standby Phase 0 Completed. Data Collection Phase 1 Starting  Thu
  Dec 13
  18:00:00 2012
  Data Collection Phase 1 Completed. Data Collection Phase 2
  Starting  Thu
  Dec 13 18:36:31 2012
  Data Collection Phase 2 Completed. Data Collection Phase 3
  (Final
  Collection Phase) Starting  Thu Dec 13 19:11:01 2012
  Data Collection Phase 3 (Final Collection Phase)  Completed.
  Data
  Processing Phase -1 Starting  Thu Dec 13 19:21:52 2012
  Discovery Status Update Completed. Working Entities Table
  Population
  Starting  Thu Dec 13 19:21:52 2012
  Working Entities Table Population Completed. Containment
  Building
  Starting  Thu Dec 13 20:01:07 2012
  
  Next time, it takes about 4,5 hours:
  
  Standby Phase 0 Completed. Data Collection Phase 1 Starting  Fri
  Dec 14
  18:00:08 2012
  Data Collection Phase 1 Completed. Data Collection Phase 2
  Starting  Fri
  Dec 14 19:01:52 2012
  Data Collection Phase 2 Completed. Data Collection Phase 3
  (Final
  Collection Phase) Starting  Fri Dec 14 19:34:07 2012
  Data Collection Phase 3 (Final Collection Phase)  Completed.
  Data
  Processing Phase -1 Starting  Fri Dec 14 19:44:02 2012
  Discovery Status Update Completed. Working Entities Table
  Population
  Starting  Fri Dec 14 19:44:02 2012
  Working Entities Table Population Completed. Containment
  Building
  Starting  Fri Dec 14 21:56:21 2012
  
  and this goes on and on (~5,5 hours):
  
  Standby Phase 0 Completed. Data Collection Phase 1 Starting  Sat
  Dec 15
  18:00:14 2012
  Data Collection Phase 1 Completed. Data Collection Phase 2
  Starting  Sat
  Dec 15 18:34:46 2012
  Data Collection Phase 2 Completed. Data Collection Phase 3
  (Final
  Collection Phase) Starting  Sat Dec 15 19:08:55 2012
  Data Collection Phase 3 (Final Collection Phase)  Completed.
  Data
  Processing Phase -1 Starting  Sat Dec 15 19:19:29 2012
  Discovery Status Update Completed. Working Entities Table
  Population
  Starting  Sat Dec 15 19:19:29 2012
  Working Entities Table Population Completed. Containment
  Building
  Starting  Sat Dec 15 22:18:35 2012
  

Local fix

• Customer scripts/stitcher to restart ncp_disco and
  ncp_d_helpserv processes before a new discovery cycle.
  

Problem summary

• ****************************************************************
  * USERS AFFECTED:                                              *
  * All ITNM 3.9 users                                           *
  ****************************************************************
  * PROBLEM DESCRIPTION:                                         *
  * DISCOVERY TIME INCREASE AFTER EACH FULL DISCO PROCESS.       *
  * The problem is that discovery keeps on taking longer and     *
  * longer the more                                              *
  * often it runs.                                               *
  ****************************************************************
  * RECOMMENDATION:                                              *
  * fixpack | 3.9.0-ITNMIP-FP0004                                *
  ****************************************************************
  

Problem conclusion

• Code has been fixed to improve discovery time.
  

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

  TIV NETWK MGR I

• Fixed component ID

  5724S4500

Applicable component levels

• R390 PSN

     UP

• R390 PSY

     UP

• R401 PSN

     UP

• R401 PSY

     UP