IJ50373: MMSYSMON.LOG GETTING VERY LARGE

APAR status

• Closed as program error.

Error description

• For certain performance monitoring operations in the case of an
  error the query and response get logged. That response can be
  large and logging it regularly will cause mmsysmon.log to grow
  rapidly.
  

Local fix

• Changing the log level or altering the log line in the python
  code.Alternative would be to eliminate the trigger, either by
  re-doing ?mmperfmon delete ?expiredKeys? or removing all
  collected performance data in /opt/IBM/zimon/data/
  

Problem summary

• For certain performance monitoring operations in the case of an
  error the query and response get logged. That response can be
  large and logging it regularly will cause mmsysmon.log to grow
  rapidly.
  

Problem conclusion

• This problem is fixed in 5.1.9.3
  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:
  Fix only logs a subset of data and also eliminates one of the
  causes that could trigger the situation.
  
  Work Around:
  Changing the log level or altering the log line in the python
  code.Alternative would be to eliminate the trigger, either by
  re-doing ?mmperfmon delete ?expiredKeys? or removing all
  collected performance data in
  /opt/IBM/zimon/data/
  
  Problem trigger:
  Incomplete delete of performance metrics. Some checks are done
  on so called ?measurements? which take several metrics and
  calculate a composite result.If only a subset of the metrics for
  the calculation is available, the error is triggered.
  
  Symptom:
  Unexpected Results/Behavior
  
  Platforms affected:
  ALL Linux OS environments
  
  Functional Area affected:
  System Health / perfmon (Zimon)
  
  Customer Impact:
  Suggested
  

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