IT34879: NULLPOINTEREXCEPTION IS CAUSING PERFORMANCE COLLECTION TO DISCARD SAMPLES

APAR status

• Closed as program error.

Error description

• Due to de-synchronization of the storage configuration with the
  Storage Insights tables, the performance collection fails.
  
  
  The performance monitor job logs will show messaging such as
  the following:
  HWNPM2133W Performance data could not be
  collected for device xxxxxx (xxxxxxxxx) due to an unknown
  error. The current samples are skipped.
  
  The following
  coresponding error is found in the tracePerfMgr*.log
  files:
  CollThread87 CollectorThread processCollection DEBUG_MIN
  Sample pass failed for device xxxx(xxx) [x.x.x.x].
  
  java.lang.NullPointerException
  at com.ibm.tpc.perf.base.CollLogi
  cSvc.postProcessCacheStats(CollLogicSvc.java:2078)
  at com.ibm.tp
  c.perf.base.CollLogicSvc.processSampPerfData(CollLogicSvc.java:1
  091)
  at com.ibm.tpc.perf.base.CollLogic.performSamplePass(CollLo
  gic.java:1473)
  at com.ibm.tpc.perf.base.CollectorThread.recovera
  bleRun(CollectorThread.java:1553)
  at com.ibm.tpc.perf.base.PmThr
  ead.run(PmThread.java:390)
  _____________________________________
  _______________
  The defect is against component: 5608TPCSI
  Device Server
  Server/Manager build/release: 5.4.0
  Problem as
  described by customer: Missing performance data
  Initial
  customer impact (low/med/high): med
  

Local fix

• In some instances it is possible to resume data collection
  without the ?degraded? status by stopping/restarting the
  monitoring tasks, stopping both the probe and performance
  monitor jobs.
  

Problem summary

• ****************************************************************
  * USERS AFFECTED:                                              *
  * IBM Storage Insights users monitoring performance of storage *
  * devices                                                      *
  ****************************************************************
  * PROBLEM DESCRIPTION:                                         *
  * Due to de-synchronization of the storage configuration with  *
  * the                                                          *
  * Storage Insights tables, the performance collection fails.   *
  *                                                              *
  *                                                              *
  * The performance monitor job logs will show messaging such as *
  * the following:                                               *
  *                                                              *
  * HWNPM2133W Performance data could not be collected for       *
  * device xxxxxx (xxxxxxxxx) due to an unknown error.           *
  * The current samples are skipped.                             *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  

Problem conclusion

• The fix for this APAR is targeted for the following release:
  
  IBM Storage Insights 1Q21 [ IBM-SI-MT ]
  IBM Storage Insights 1Q21 [ 5.4.2-IBM-SI-Patch ]
  
  ( release target 1Q 2021 )
  
  The target dates for future releases do not represent a formal
  commitment by IBM. The dates are subject to change without
  notice.
  

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

  STORAGE INSIGHT

• Fixed component ID

  5608TPCSI

Applicable component levels