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Posted to commits@cassandra.apache.org by "Sylvain Lebresne (Resolved) (JIRA)" <ji...@apache.org> on 2012/01/04 16:10:40 UTC
[jira] [Resolved] (CASSANDRA-2749) fine-grained control over data
directories
[ https://issues.apache.org/jira/browse/CASSANDRA-2749?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Sylvain Lebresne resolved CASSANDRA-2749.
-----------------------------------------
Resolution: Fixed
Assignee: Sylvain Lebresne
Committed with nits above fixed, thanks Pavel.
> fine-grained control over data directories
> ------------------------------------------
>
> Key: CASSANDRA-2749
> URL: https://issues.apache.org/jira/browse/CASSANDRA-2749
> Project: Cassandra
> Issue Type: New Feature
> Components: Core
> Reporter: Jonathan Ellis
> Assignee: Sylvain Lebresne
> Priority: Minor
> Fix For: 1.1
>
> Attachments: 0001-2749.patch, 0001-Make-it-possible-to-put-column-families-in-subdirect.patch, 0001-non-backwards-compatible-patch-for-2749-putting-cfs-.patch.gz, 0002-fix-unit-tests.patch, 0003-Fixes.patch, 2749.tar.gz, 2749_backwards_compatible_v1.patch, 2749_backwards_compatible_v2.patch, 2749_backwards_compatible_v3.patch, 2749_backwards_compatible_v4.patch, 2749_backwards_compatible_v4_rebase1.patch, 2749_not_backwards.tar.gz, 2749_proper.tar.gz
>
>
> Currently Cassandra supports multiple data directories but no way to control what sstables are placed where. Particularly for systems with mixed SSDs and rotational disks, it would be nice to pin frequently accessed columnfamilies to the SSDs.
> Postgresql does this with tablespaces (http://www.postgresql.org/docs/9.0/static/manage-ag-tablespaces.html) but we should probably avoid using that name because of confusing similarity to "keyspaces."
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