IJ45537: THE TSAPOLICY COULD HANG DURING DIRECTORY SCANNING PHASE WITH LARGE FILE SYSTEM OR FILESET

APAR status

• Closed as program error.

Error description

• The tsapolicy evaluates each client's workload and rebalance
  them if some clients are overloaded.
  But the workload is sometimes incorrectly calculated and
  tsapolicy tries to rebalance unnecessary andcould get into an
  infinite loop.
  

Local fix

Problem summary

• The tsapolicy evaluates each client's workload and rebalance
  them if some clients are overloaded.
  But the workload is sometimes incorrectly calculated and
  tsapolicy tries to rebalance unnecessary and could get into an
  infinite loop.
  

Problem conclusion

• This problem is fixed in 5.1.2.10
  To see all Spectrum Scale APARs and their respective
  Fix solutions refer to page:
  https://public.dhe.ibm.com/storage/spectrumscale/spectrum_scale_
  apars.html
  
  Benefits of the solution:
  The performance of directory scanning can be improved
  
  Work around:
  None
  
  Problem trigger:
  This problem could occur if number of inodes in the file system
  or fileset is large.
  
  Symptom:
  Component Level Outage
  
  Platforms affected:
  All platforms that support mmapplypolicy
  
  Functional Area affected:
  mmapplypolicy
  
  Customer Impact:
  High Importance
  

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

  SPEC SCALE STD

• Fixed component ID

  5737F33AP

Applicable component levels