Make sstable filenames contain a UUID instead of increasing integer
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Key: CASSANDRA-1983
URL: https://issues.apache.org/jira/browse/CASSANDRA-1983
Project: Cassandra
Issue Type: Improvement
Components: Core
Affects Versions: 0.7.0
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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