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https://issues.apache.org/jira/browse/CASSANDRA-3116?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jonathan Ellis updated CASSANDRA-3116:
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Attachment: 3116.txt
Patch to replace locking in migrations + valid checks in CompactionManager with
isValid checks in DataTracker.
compactionLock is still used but only for major compaction. should we get rid
of that too and say "if you want to be absolutely sure you're compacting
everything, disable minor compactions before invoking major?"
> Compactions can (seriously) delay schema migrations
> ---------------------------------------------------
>
> Key: CASSANDRA-3116
> URL: https://issues.apache.org/jira/browse/CASSANDRA-3116
> Project: Cassandra
> Issue Type: Bug
> Components: Core
> Affects Versions: 0.7.0
> Reporter: Eric Evans
> Assignee: Jonathan Ellis
> Labels: compaction
> Fix For: 1.1
>
> Attachments: 3116.txt
>
>
> A compaction lock is acquired when dropping keyspaces or column families
> which will cause the schema migration to block if a compaction is in progress.
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