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From "Ben Slater (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (CASSANDRA-8460) Make it possible to move non-compacting sstables to slow/big storage in DTCS
Date Tue, 27 Mar 2018 03:42:00 GMT

    [ https://issues.apache.org/jira/browse/CASSANDRA-8460?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16414966#comment-16414966
] 

Ben Slater commented on CASSANDRA-8460:
---------------------------------------

OK. Talking to Lerh, his code his just about at the point where we can do some initial benchmarking
so we'll run some tests to compare the two approaches and report what we get.

> Make it possible to move non-compacting sstables to slow/big storage in DTCS
> ----------------------------------------------------------------------------
>
>                 Key: CASSANDRA-8460
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-8460
>             Project: Cassandra
>          Issue Type: Improvement
>            Reporter: Marcus Eriksson
>            Assignee: Lerh Chuan Low
>            Priority: Major
>              Labels: doc-impacting, dtcs
>             Fix For: 4.x
>
>
> It would be nice if we could configure DTCS to have a set of extra data directories where
we move the sstables once they are older than max_sstable_age_days. 
> This would enable users to have a quick, small SSD for hot, new data, and big spinning
disks for data that is rarely read and never compacted.



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