[
https://issues.apache.org/jira/browse/CASSANDRA-7915?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14132570#comment-14132570
]
Branimir Lambov commented on CASSANDRA-7915:
--------------------------------------------
You're right, I didn't realize early availability could be a problem.
Maybe we could still prepare the write and delay attaching it to the table, but
that would be much more complicated and most probably not worth the effort.
> Waiting for sync on the commit log could happen after writing to memtable
> -------------------------------------------------------------------------
>
> Key: CASSANDRA-7915
> URL: https://issues.apache.org/jira/browse/CASSANDRA-7915
> Project: Cassandra
> Issue Type: Improvement
> Components: Core
> Reporter: Branimir Lambov
> Priority: Minor
>
> Currently the sync wait is part of CommitLog.add, which is executed in whole
> before any memtable write. The time for executing the latter is thus added on
> top of the time for file sync, which seems unnecessary.
> Moving the wait to a call at the end of Keystore.apply should hide the
> memtable write time and may improve performance, especially for the batch
> sync strategy.
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
