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Posted to commits@cassandra.apache.org by "Jonathan Ellis (JIRA)" <ji...@apache.org> on 2011/04/29 15:54:03 UTC
[jira] [Updated] (CASSANDRA-1983) Make sstable filenames contain a
UUID instead of increasing integer
[ https://issues.apache.org/jira/browse/CASSANDRA-1983?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Jonathan Ellis updated CASSANDRA-1983:
--------------------------------------
Affects Version/s: (was: 0.7.0)
Fix Version/s: (was: 1.0)
> Make sstable filenames contain a UUID instead of increasing integer
> -------------------------------------------------------------------
>
> Key: CASSANDRA-1983
> URL: https://issues.apache.org/jira/browse/CASSANDRA-1983
> Project: Cassandra
> Issue Type: Improvement
> Reporter: David King
> Priority: Minor
>
> sstable filenames look like CFName-1569-Index.db, containing an integer for uniqueness. This makes it possible (however unlikely) that the integer could overflow, which could be a problem. It also makes it difficult to collapse multiple nodes into a single one with rsync. I do this occasionally for testing: I'll copy our 20 node cluster into only 3 nodes by copying all of the data files and running cleanup; at present this requires a manual step of uniqifying the overlapping sstable names. If instead of an incrementing integer, it would be handy if these contained a UUID or somesuch that guarantees uniqueness across the cluster.
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