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https://issues.apache.org/jira/browse/CASSANDRA-4807?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Yuki Morishita updated CASSANDRA-4807:
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Attachment: 4807-1.1.txt
Alexey, Omid,
Thank you both for providing information.
I think this regression comes from CASSANDRA-4587.
compactionstats' bytes compacted comes from
LeveledScanner#getCurrentPosition(https://github.com/apache/cassandra/blob/cassandra-1.1.6/src/java/org/apache/cassandra/db/compaction/LeveledCompactionStrategy.java#L261)
when using LCS.
We need to reset currentScanner to null after scanning through to the end,
otherwise we would add twice for last scanned SSTable.
Patch attached as well as unit test for this.
(github: https://github.com/yukim/cassandra/tree/4807)
> Compaction progress counts more than 100%
> -----------------------------------------
>
> Key: CASSANDRA-4807
> URL: https://issues.apache.org/jira/browse/CASSANDRA-4807
> Project: Cassandra
> Issue Type: Bug
> Components: Core
> Affects Versions: 1.1.6
> Reporter: Omid Aladini
> Assignee: Yuki Morishita
> Priority: Minor
> Attachments: 4807-1.1.txt
>
>
> 'nodetool compactionstats' compaction progress counts more than 100%:
> {code}
> pending tasks: 74
> compaction type keyspace column family bytes compacted
> bytes total progress
> Validation KSP CF1 56192578305
> 84652768917 66.38%
> Compaction KSP CF2 162018591
> 119913592 135.11%
> {code}
> Hadn't experienced this before 1.1.3. Is it due to changes in 1.1.4-1.1.6 ?
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