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https://issues.apache.org/jira/browse/CASSANDRA-1780?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12965334#action_12965334
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Jonathan Ellis commented on CASSANDRA-1780:
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Peter: I don't think so, since each insert will either be all in one memtable,
or all in another; it won't be spread across multiple memtables, so our
atomicity guarantee is safe. It's definitely a little unintuitive that a
memtable could be flushed before the write to the commitlog, but it's harmless
as far as the semantics are concerned.
> periodic + flush commitlog mode
> -------------------------------
>
> Key: CASSANDRA-1780
> URL: https://issues.apache.org/jira/browse/CASSANDRA-1780
> Project: Cassandra
> Issue Type: New Feature
> Components: Core
> Reporter: Jonathan Ellis
> Assignee: Jonathan Ellis
> Priority: Minor
> Fix For: 0.7.0
>
> Attachments: 1780.txt
>
>
> periodic-sync commitlog mode only flushes before it syncs, which means its
> best case durability is very similar to its worst case. if we had a mode
> that flushed but did not sync then it would only lose data for actual power
> failures.
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