ramkrishna.s.vasudevan created HBASE-21102:
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Summary: ServerCrashProcedure should select target server where no
other replicas exist for the current region
Key: HBASE-21102
URL: https://issues.apache.org/jira/browse/HBASE-21102
Project: HBase
Issue Type: Bug
Reporter: ramkrishna.s.vasudevan
Assignee: ramkrishna.s.vasudevan
Currently when a server with region replica crashes, when the target server is
created for the replica region assignment there is no guarentee that a server
is selected where there is no other replica for the current region getting
assigned. It so happens that currently we do an assignment randomly and later
the LB comes and identifies these cases and again does MOVE for such regions.
It will be better if we can identify target servers at least minimally ensuring
that replicas are not colocated.
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