Anubhav Kale created CASSANDRA-11160:
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Summary: Use UUID for SS Table Filenames
Key: CASSANDRA-11160
URL: https://issues.apache.org/jira/browse/CASSANDRA-11160
Project: Cassandra
Issue Type: Improvement
Reporter: Anubhav Kale
Priority: Minor
Today, Cassandra uses monotonically increasing counter to generate SS Table
file names. While this works practically, wouldn't it be safer / better if
UUIDs are used in file names to make them really unique ? AFAIK, no code paths
rely on such counters being part of files.
A specific scenario where this will really help is below:
In backup / restore model, suppose we move files out to some other storage. In
that process, we can optimize by not moving files that were already backed up
using a check on file names (which we can't do easily today because if the node
went down, a file with same name can be generated). Note that using incremental
backups is not a viable option here, because we lose the benefits of compaction
(as discussed in my last comment of CASSANDRA-10960).
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