IV43870: NCP_POLLER STOPS POLLING AND LOGS OUT-OF-MEMORY WHEN COLLECTION RATE EXCEEDS STORAGE RATE

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

• Env:  ITNM 3.9 FP3
  
  ncp_poller stops polling and logs Out-of-memory when collection
  rate exceeds storage rate
  The poller buffers data in memory when it is unable to store
  due to database connection or collection rates exceed storage
  rates.  The buffer increases until memory is exhausted.
  

Local fix

• Maintain db connection and/or reduce rate of storing of poll
  data
  

Problem summary

• ****************************************************************
  * USERS AFFECTED:                                              *
  * users of ITNM that collect Snmp poll data and store it to a  *
  * database                                                     *
  ****************************************************************
  * PROBLEM DESCRIPTION:                                         *
  * during prolong database outages, or excessive polling load,  *
  * the Poller would continue to collect poll data and store in  *
  * an in memory queue.  This queue would continue to grow until *
  * poller ran out of memory.                                    *
  ****************************************************************
  * RECOMMENDATION:                                              *
  * | fix pack | 3.9.0-ITNMIP-FP0004                             *
  ****************************************************************
  

Problem conclusion

• With this fix the poller will off load poll data to a flat file
  if it is unable keep up with writing the data to a database
  

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

• R410 PSN

     UP

• R410 PSY

     UP