IJ44067: Prevent erroneous error messages caused by contacting nodes on remote clusters.

APAR status

• Closed as program error.

Error description

• System monitoring collects all information about a cluster by
  sending it to relevant nodes. It ignores cluster boundaries
  while doing so which does not work and creates spurious error
  messages in the logs.
  
  [I] For remote clusters, this node accepts minimum
  version
  5.0.0.0. [1800]
  [D] Node xxx.xxx.xxx.xxx is at version 5.1.2.2. [2602]
  [D] Node xxx.xxx.xxx.xxx accepts minimum version 5.0.0.0.
  [1800]
  [E] Node xxx.xxx.xxx.xxx is incompatible because its
  version (5.1.2.2) is less than the minimum compatible
  version of this node (5.1.4.0). [2602/2800]
  [E] Killing connection from xxx.xxx.xxx.xxx because
  daemon
   versions were not compatible, err 120
  
  Reported in:
  Spectrum Scale 5.1.4
  

Local fix

• Ensure the nodes in the home cluster are at a level >= code
  level of the remote clusters
  

Problem summary

• System monitoring collects all information about a cluster by
  sending it to relevant nodes. It ignores cluster boundaries
  while doing so which does not work and creates spurious error
  messages in the logs.
  

Problem conclusion

• This problem is fixed in 5.1.6.1
  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:
  No more error log entries like these:
  [E] Killing connection from xx.xx.xx.xx because daemon versions
  were not compatible,err 120
  [D] This node is at version 5.1.4.0. [2800]
  [I]  For the local cluster, this node accepts minimum version
  5.1.4.0. [2800]
  [I]   For remote clusters, this node accepts minimum version
  5.0.0.0. [1800]
  [D] Node 10.28.56.126 is at version 5.1.2.2. [2602]
  [D] Node 10.28.56.126 accepts minimum version 5.0.0.0. [1800]
  [E] Node 10.28.56.126 is incompatible because its version
  (5.1.2.2) is less than the minimum compatible version of this
  node (5.1.4.0). [2602/2800]
  
  Work Around:
  Ensure the nodes in the home cluster are at a level >= code
  level of the remote clusters
  
  Problem trigger:
  Setup with remote cluster integration
  
  Symptom:
  Unexpected Results/Behavior
  Erroneous Log entries
  
  Platforms affected:
  ALL Linux OS environments
  
  Functional Area affected:
  System Health (mmfs.log.latest)
  
  Customer Impact:
  Suggested: has little or no impact on customer operation
  

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 DME

• Fixed component ID

  5737F34AP

Applicable component levels