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https://issues.apache.org/jira/browse/CASSANDRA-2749?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Marcus Eriksson updated CASSANDRA-2749:
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Attachment: 2749_backwards_compatible_v4.patch
v4 attached
* renamed DatabaseDescriptor method
* made file name checking case sensitive again...
* removed unused rename code (following the renameSSTables call path, it looks
very strange, even in trunk, ill fix this after this patch is merged)
* cant figure out a way to make snapshotExists any better, im looking for a
directory with the snapshot tag in all places, not sure if it could be wrong
here (even if it is quite naive)
* removed dead todos
> 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: Marcus Eriksson
> Priority: Minor
> Fix For: 1.1
>
> Attachments:
> 0001-Make-it-possible-to-put-column-families-in-subdirect.patch,
> 2749_backwards_compatible_v1.patch, 2749_backwards_compatible_v2.patch,
> 2749_backwards_compatible_v3.patch, 2749_backwards_compatible_v4.patch
>
>
> 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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