Devaraj Das created HBASE-9525:
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Summary: Move region right after a region split is dangerous
Key: HBASE-9525
URL: https://issues.apache.org/jira/browse/HBASE-9525
Project: HBase
Issue Type: Bug
Reporter: Devaraj Das
I ran into a situation where the CM issued a move for a region just after a
region was split. The master went bonkers since the master honored the CM
request, and assigned the split region, but subsequently all the region state
assumptions on this (split)region was messed up. I started seeing log lines
lines like "THIS SHOULD NOT HAPPEN". Also, it created other problems - a
compaction on original region happened on the new assignee, and then the
daughter regions started seeing issues to do with store files missing, etc.,
etc.
I will upload the logs shortly.
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