Sergey Shelukhin created HBASE-22347:
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Summary: try to archive WALs when closing a region or when
shutting down RS
Key: HBASE-22347
URL: https://issues.apache.org/jira/browse/HBASE-22347
Project: HBase
Issue Type: Bug
Reporter: Sergey Shelukhin
When RS shuts down in an orderly manner due to an upgrade or decom, even it has
0 regions (discovered when testing HBASE-22254), it still dies with some active
WALs.
WALs are then split by master, and in the 0-region case the recovered edits are
not used for anything.
RS shutdown should archive WALs if possible after flushing/closing regions;
given that the latter can fail, perhaps once before, and once after.
Closing a region via an RPC should also try to archive WAL.
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