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https://issues.apache.org/jira/browse/CASSANDRA-5137?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13548791#comment-13548791
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Jonathan Ellis commented on CASSANDRA-5137:
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You're right, you don't actually need a marker since if compaction completes
the next step is to remove the ancestors. I think "if ancestors are still
alive, assume compaction didn't finish and delete the descendants" is good
enough.
> Make sure SSTables left over from compaction get deleted and logged
> -------------------------------------------------------------------
>
> Key: CASSANDRA-5137
> URL: https://issues.apache.org/jira/browse/CASSANDRA-5137
> Project: Cassandra
> Issue Type: Bug
> Affects Versions: 1.1.3
> Reporter: Yuki Morishita
> Assignee: Yuki Morishita
> Priority: Minor
> Fix For: 1.1.9, 1.2.1
>
> Attachments: 5137-1.1.txt
>
>
> When opening ColumnFamily, cassandra checks SSTable files' ancestors and
> skips loading already compacted ones. Those files are expected to be deleted,
> but currently that never happens.
> Also, there is no indication of skipping loading file in the log, so it is
> confusing especially doing upgradesstables.
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