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https://issues.apache.org/jira/browse/CASSANDRA-1983?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jonathan Ellis updated CASSANDRA-1983:
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Component/s: (was: Core)
Fix Version/s: 0.8
> 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
> Affects Versions: 0.7.0
> Reporter: David King
> Priority: Minor
> Fix For: 0.8
>
>
> 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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