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https://issues.apache.org/jira/browse/HBASE-1944?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12771725#action_12771725
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ryan rawson commented on HBASE-1944:
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this is absolutely necessary to achieve high performance and data safety under
the presence of hdfs-265, since the best case scenario will be about 1000
fsync/second.
I am not super fond of the name, since synced suggests perhaps that the data
isnt written to disk or something, which is NOT true.
Perhaps PER_TX_FLUSH :-)
> Add a "is synced" attribute to HTD
> ----------------------------------
>
> Key: HBASE-1944
> URL: https://issues.apache.org/jira/browse/HBASE-1944
> Project: Hadoop HBase
> Issue Type: Improvement
> Reporter: Jean-Daniel Cryans
> Assignee: Jean-Daniel Cryans
> Fix For: 0.21.0
>
> Attachments: HBASE-1944.patch
>
>
> At SU we have a case where we'd like to be able to, by default, sync every
> appended edit but for some tables have the control to disable their sync. You
> could then rely on other tables like .META. to do syncs, the optional log
> syncer timer down in LogSyncer and user tables that are always synced. For
> example, set a 10ms timer on the log syncer so that in the worse case you
> lose 10ms of non-catalog edits.
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