IT38658: BAD CACHE FOLDER ENTRIES FROM PERFORMANCE MONITOR CAUSE RECURRING TASK EXPIRED IN STORAGE INSIGHTS

APAR status

• Closed as program error.

Error description

• After migration of Storage Insights to new cloud environment,
  there were bad/invalid cached performance data samples in
  a cache folder residing in folders from the previous
  environment, which should have been updated while switching
  over. The same performance data sample is trying to be deleted
  again and again and is failing to get deleted.
  Need to fix the issue that should keep track of the invalid/bad
  cached performance data samples and skip them from
  processing, the data collector should continue to process the
  next set of cached performance data samples.
  
  Data Collector logs show...
  tracemessage_errors_0.log
  [StoreAndForward_CacheUploader] [CacheUploader.run] [ERROR]
  Error reading entry from cache, skipping cache depletion
  
  tracemessage_0.log
  [StoreAndForward_CacheUploader]
  [StoreAndForwardCache.getOldestCacheEntry] [WARNING]
  summary.properties doesn't exist for cache entry:
  <data_collector_installation_path>\cache\<UUID>\run#
  ...
  [StoreAndForward_CacheUploader] [CacheUploader.run] [ERROR]
  Error reading entry from cache, skipping cache depletion
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED:                                              *
  * IBM Storage Insights users who were migrated from the        *
  * previous Storage Insights environment                        *
  ****************************************************************
  * PROBLEM DESCRIPTION:                                         *
  * After migration of Storage Insights to the new cloud         *
  * environment, there were bad / invalid cached                 *
  * performance data samples in a cache folder                   *
  * residing in folders from the previous environment,           *
  * which should have been updated while switching               *
  * over. The same performance data sample is trying to          *
  * be deleted again and again and is failing to get             *
  * deleted.                                                     *
  * Fixing this issue to keep track of the invalid / bad         *
  * cached performance data samples and skip them                *
  * from processing, the data collector should continue          *
  * to process the next set of cached performance data           *
  * samples.                                                     *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  

Problem conclusion

• The fix for this APAR is targeted for the following release:
  
  IBM Storage Insights 4Q21   [ 54X-IBM-SI ]
  ( release target 4Q 2021 / November )
  
  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