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Posted to commits@cassandra.apache.org by "Jonathan Ellis (JIRA)" <ji...@apache.org> on 2015/07/31 02:57:04 UTC
[jira] [Updated] (CASSANDRA-9946) use ioprio_set on compaction
threads by default instead of manually throttling
[ https://issues.apache.org/jira/browse/CASSANDRA-9946?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Jonathan Ellis updated CASSANDRA-9946:
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Summary: use ioprio_set on compaction threads by default instead of manually throttling (was: use ioprio_set instead of throttling by default)
> use ioprio_set on compaction threads by default instead of manually throttling
> ------------------------------------------------------------------------------
>
> Key: CASSANDRA-9946
> URL: https://issues.apache.org/jira/browse/CASSANDRA-9946
> Project: Cassandra
> Issue Type: New Feature
> Components: Core
> Reporter: Jonathan Ellis
> Assignee: Ariel Weisberg
> Fix For: 3.x
>
>
> Compaction throttling works as designed, but it has two drawbacks:
> * it requires manual tuning to choose the "right" value for a given machine
> * it does not allow compaction to "burst" above its limit if there is additional i/o capacity available while there are less application requests to serve
> Using ioprio_set instead solves both of these problems.
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