[jira] Commented: (CASSANDRA-1007) Make memtable flush thresholds per-CF instead of global

["Jonathan Ellis (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/CASSANDRA-1007?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12885657#action_12885657 ] 

Jonathan Ellis commented on CASSANDRA-1007:
-------------------------------------------

Still working on this, Todd?

> Make memtable flush thresholds per-CF instead of global
> -------------------------------------------------------
>
>                 Key: CASSANDRA-1007
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-1007
>             Project: Cassandra
>          Issue Type: Improvement
>            Reporter: Jonathan Ellis
>            Assignee: Todd Blose
>            Priority: Minor
>             Fix For: 0.7
>
>
> This is particularly useful in the scenario where you have a few CFs with a high volume of overwrite operations; increasing the memtable size/op count means that you can do the overwrite in memory before it ever hits disk.  Once on disk compaction is much more work for the system.
> But, you don't want to give _all_ your CFs that high of a threshold because the memory is better used elsewhere, and because it makes commitlog replay unnecessarily painful.

-- 
This message is automatically generated by JIRA.
-
You can reply to this email to add a comment to the issue online.