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https://issues.apache.org/jira/browse/CASSANDRA-6878?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16287094#comment-16287094
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Jeff Jirsa commented on CASSANDRA-6878:
---------------------------------------
This is going to end up being very data and hardware dependent - what do we do
with the recommendation? We can't build it into a script, because we don't know
what data looks like. Do you feel strongly that this needs to happen? It's been
3 years and no movement, I propose we won't-fix it unless you really believe
it's useful.
> Test different setra values in EC2 to find the best performance
> ---------------------------------------------------------------
>
> Key: CASSANDRA-6878
> URL: https://issues.apache.org/jira/browse/CASSANDRA-6878
> Project: Cassandra
> Issue Type: Test
> Components: Testing
> Reporter: Joaquin Casares
> Priority: Minor
>
> Tests should be run against:
> * Ephemeral devices
> * RAID0 ephemeral devices
> * SSD devices
> * RAID0 SSD devices
> The current recommendation is:
> {CODE}
> sudo blockdev --setra 128 /dev/<device>
> {CODE}
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