IJ46764: GPFS DAEMON LOG ASSERT WHEN ACQUIRE OWNERSHIP OF A REGION

APAR status

• Closed as program error.

Error description

• The GPFS daemon restarted suddently because of
  the mmfsd log assert itself when failed to
  get ownership of a region.
  The assert:
  Assert exp(regP->isOwnerLocal() == 0)
  

Local fix

Problem summary

• Scale daemon assert going off: Assert exp(regP->isOwnerLocal()
  == 0) in file allocR.C, results in Scale mmfsd daemon process
  down.
  

Problem conclusion

• This problem is fixed in 5.1.2.12 
  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:
  Fixed the code to avoid mmfsd daemon side assert going off.
  
  Work Around:
  None
  
  Problem trigger:
  Heavy block space allocation and deallocation in the cluster.
  
  Symptom:
  Abend/Crash
  
  Platforms affected:
  All Operating Systems
  
  Functional Area affected:
  All Scale Users
  
  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