bshashikant opened a new pull request #1999:
URL: https://github.com/apache/ozone/pull/1999


   
   ## What changes were proposed in this pull request?
   The idea here is to add  an optional config "ozone.scm.primordial.node.id".  
if the config is set, it will cause scm --init to only take effect on
   the specific node and ignore scm --bootstrap cmd. Similarly, scm --init will 
be ignored on the non-primordial scm nodes.
   
   If a cluster is upgraded from non-ratis to ratis based SCM, if the config is 
set , this will be the primary SCM node which will initialise the ratis
   ring.
   
   If the config is not set, scm --init needs to re-run for switching from 
non-ratis based SCM to ratis-based SCM on the primary node.
   
   ## What is the link to the Apache JIRA
   https://issues.apache.org/jira/browse/HDDS-4896
   
   ## How was this patch tested?
   Unit tests added


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