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https://issues.apache.org/jira/browse/HBASE-16094?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Matteo Bertozzi updated HBASE-16094:
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Fix Version/s: 2.0.0
> Procedure v2 - Improve cleaning up of proc wals
> -----------------------------------------------
>
> Key: HBASE-16094
> URL: https://issues.apache.org/jira/browse/HBASE-16094
> Project: HBase
> Issue Type: Sub-task
> Components: proc-v2
> Reporter: Appy
> Fix For: 2.0.0
>
>
> 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
> https://github.com/apache/hbase/blob/master/hbase-procedure/src/main/java/org/apache/hadoop/hbase/procedure2/store/wal/WALProcedureStore.java#L865
> Remove log if does not contains “active” procIds 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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