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https://issues.apache.org/jira/browse/HBASE-1939?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jean-Daniel Cryans updated HBASE-1939:
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Attachment: HBASE-1939.patch
Patch that implements the group commit but that also cleans up HDFS-200 era
code. Passes all tests
- I remove LogFlusher in favor of the LogSyncer thread. This also fixes the
fact that the optional log flush value was never use.
- I use an AtomicBoolean to force sync. This part was tricky because there is
no message passing between the client thread and the LogSyncer.
> HLog group commit
> -----------------
>
> Key: HBASE-1939
> URL: https://issues.apache.org/jira/browse/HBASE-1939
> Project: Hadoop HBase
> Issue Type: New Feature
> Reporter: Jean-Daniel Cryans
> Assignee: Jean-Daniel Cryans
> Fix For: 0.21.0
>
> Attachments: HBASE-1939.patch
>
>
> Currently multiple clients writing to a RS are serialized when sync'ing their
> appends. Implementing group commit can help this by being aware of all the
> clients in that queue.
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