[jira] [Created] (CASSANDRA-21111) Cassandra sstable generation ID's are a signed int which might overflow

["Stefan Miklosovic (Jira)" <ji...@apache.org>]

Stefan Miklosovic created CASSANDRA-21111:
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             Summary: Cassandra sstable generation ID's are a signed int which might overflow
                 Key: CASSANDRA-21111
                 URL: https://issues.apache.org/jira/browse/CASSANDRA-21111
             Project: Apache Cassandra
          Issue Type: Bug
            Reporter: Stefan Miklosovic


We need to triage this but this seems to be legit:

We have hit an issue with a cluster that where sstable generation ID’s for a peer has incremented so high that it has overflowed, which has introduced a 2nd dash into the file name. For example:

nb--2146021117-big-data.db

This caused an issue with our solution which is aimed to consolidate partition statistics in the data set. The current version of the solution does not recognise the possibility of sstable generation ID’s being a negative value - which causes it to fail.

Workaround:

Rename all sstables in the table to “reset” the generation ID.



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