Appy created HBASE-16094:
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Summary: Improve cleaning up of proc wals
Key: HBASE-16094
URL: https://issues.apache.org/jira/browse/HBASE-16094
Project: HBase
Issue Type: Bug
Reporter: Appy
(From Matteo)
Avoid accumulating too many wals.
We remove logs in 3 cases:
No procedures are running. We can remove all the logs.
All procedures are updated/written in the last log. We can remove all the logs,
aside the active one.
Remove log if does not contains “active” procIds (Medium)
https://github.com/apache/hbase/blob/master/hbase-procedure/src/main/java/org/apache/hadoop/hbase/procedure2/store/wal/WALProcedureStore.java#L865
This one requires to be improved, since those procedures can be in earlier
wals. An example that can be unit-tested is:
Insert 10 proc, Roll The Wal, Update the 10 proc
At the end of the 10 updates the removeInactiveLogs() should be able to remove
the first WAL. We can probably do a diff on the updated tracker bitmap between
wals.
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