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https://issues.apache.org/jira/browse/CASSANDRA-6967?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13956471#comment-13956471
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Sylvain Lebresne commented on CASSANDRA-6967:
---------------------------------------------
You can just delete those system-Versions files. The Versions system table is
an old table that has been removed in C* 1.2. Not sure why you still have
sstables around for that old table, but upgradesstables is right to tell that
this table is unknown.
Maybe we can add some cleanup at starting in 1.2 to remove those sstables?
> upgradesstables won't upgrade the system-Versions-hf files
> ----------------------------------------------------------
>
> Key: CASSANDRA-6967
> URL: https://issues.apache.org/jira/browse/CASSANDRA-6967
> Project: Cassandra
> Issue Type: Bug
> Reporter: Nicolas Lalevée
>
> In order to properly upgrade our test cluster from 1.2.11 to 2.0.6, we had to
> perform some upgradesstables, Cassandra 2.0.6 was not starting due to some
> file in version 'hf'.
> To prepare the upgrade on prod, I have looked up for some 'hf' files, and I
> have found some on all nodes, all being
> /var/lib/cassandra/data/system/Versions/system-Versions-hf-*
> And I have tried many upgradesstables command, there are still lying there.
> {noformat}
> # nodetool upgradesstables system Versions
> Exception in thread "main" java.lang.IllegalArgumentException: Unknown
> table/cf pair (system.Versions)
> # nodetool upgradesstables system
> # nodetool upgradesstables
> # nodetool upgradesstables -a system
> # ls /var/lib/cassandra/data/system/Versions/*-hf-* | wc -l
> 15
> {noformat}
> I did not try "nodetool upgradesstables -a" since we have a lot of data.
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