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https://issues.apache.org/jira/browse/CASSANDRA-21111?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Stefan Miklosovic updated CASSANDRA-21111:
------------------------------------------
    Test and Documentation Plan: ci
                         Status: Patch Available  (was: In Progress)

submitting a PR for now for trunk, will wait for an initial feedback before the 
application to lower branches

> 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
>          Components: Local/SSTable
>            Reporter: Stefan Miklosovic
>            Assignee: Stefan Miklosovic
>            Priority: Normal
>             Fix For: 4.0.x, 4.1.x, 5.0.x, 5.x
>
>          Time Spent: 10m
>  Remaining Estimate: 0h
>
> 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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