IT36554: PERFORMANCE COLLECTION NOT STARTED AFTER DATA COLLECTOR AGENT FAILOVER

APAR status

• Closed as program error.

Error description

• Storage Insights performance monitoring jobs have been observed
  to not restart, after monitoring tasks have failed over from
  one data collector agent to another.
  It is normal for jobs to
  be assigned to a different data collector agent when the first
  one is unavailable for any reason; this APAR addresses a
  situation where the jobs transfer to a different data collector
  agent, but the jobs then do not start, which results in gaps in
  data being collected for storage devices.
  Internally, the
  monitoring jobs are shown to time out:
  Caused by:
  com.ibm.tpc.perf.pdc.PdcCollectorReceiveTimeoutException:
  Statistics collection for <device_name> timed out after 300
  seconds because the
  collector agent did send data in the allocated time. (timeout:
  300000)
  ____________________________________________________
  The
  defect is against component: 5608TPCSI
  Server/Manager
  build/release: 5.4.1
  Problem as described by customer:
  Performance collection not started after DC failover
  Initial
  customer impact (low/med/high): high
  

Local fix

• Manually re-start failed performance monitoring job.
  

Problem summary

• ****************************************************************
  * USERS AFFECTED:                                              *
  * IBM Storage Insights users monitoring device performance     *
  * while Data Collector failover occurred                       *
  ****************************************************************
  * PROBLEM DESCRIPTION:                                         *
  * Storage Insights performance monitoring jobs have been       *
  * observed to not restart after monitoring tasks have          *
  * failed-over from one Data Collector agent to another.        *
  *                                                              *
  * It is normal for jobs to be assigned to a different Data     *
  * Collector agent when the first one is unavailable for any    *
  * reason; this APAR addresses a situation where the jobs       *
  * transfer to a different Data Collector agent, but the jobs   *
  * then do not start, which results in gaps in data being       *
  * collected for storage devices.                               *
  *                                                              *
  *                                                              *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  

Problem conclusion

• The fix for this APAR is targeted for the following release:
  
  IBM Storage Insights 1Q21  [ 5.4.1-IBM-SI-Patch ]
  
  ( release target 1Q 2021 / March)
  

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