saintstack opened a new pull request #2496:
URL: https://github.com/apache/hbase/pull/2496


   …eplicationsource
   
   warmupRegion called by Master on Region move will instatiate
   the meta WALProvider as part of its action making it so
   it is already created by the time we go to open the
   hbsae:meta Region. Accommodate meta walProvider
   being already up.
   
   
hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/handler/AssignRegionHandler.java
   
hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/handler/UnassignRegionHandler.java
    Pass regionInfo. Needed internally.
   
   
hbase-server/src/main/java/org/apache/hadoop/hbase/replication/regionserver/ReplicationSourceManager.java
    Add handling if meta wal provider already instantiated when
    addCatalogReplicationSource runs.
   
   
hbase-server/src/test/java/org/apache/hadoop/hbase/replication/regionserver/TestMetaRegionReplicaReplicationEndpoint.java
    Add exercising moving meta around between servers. Test replication
    keeps working.


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