binlijin commented on issue #930: HBASE-23564 RegionStates may has some expired serverinfo and make reg… URL: https://github.com/apache/hbase/pull/930#issuecomment-565877638 @saintstack The RegionStates list do not gets updated eventually, and has some expired serverinfo. https://issues.apache.org/jira/browse/HBASE-23564 TransitRegionStateProcedure (open a region on a server) may run after the server have done ServerCrashProcedure. The ServerCrashProcedure will remove the ServerName entry from serverMap in RegionStates, but later the TransitRegionStateProcedure open a region on this server will add a entry in serverMap in RegionStates for this ServerName, the open will fail and retry, but serverMap in RegionStates leaves some expired ServerNames and have no chance to clear and it will make balance not correct.
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