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https://issues.apache.org/jira/browse/CASSANDRA-12244?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15389603#comment-15389603
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Sylvain Lebresne commented on CASSANDRA-12244:
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Sounds wrong indeed. Wants to give a short a patch by any chance?
> progress in compactionstats is reported wrongly for view builds
> ---------------------------------------------------------------
>
> Key: CASSANDRA-12244
> URL: https://issues.apache.org/jira/browse/CASSANDRA-12244
> Project: Cassandra
> Issue Type: Bug
> Reporter: Tom van der Woerdt
> Priority: Minor
> Labels: lhf
>
> In the view build progress given by compactionstats, there are several issues
> :
> {code}
> id compaction type keyspace
> table completed total unit progress
> 038d3690-4dbe-11e6-b207-21ec388d48e6 View build mykeyspace
> mytable 844 bytes 967 bytes ranges 87.28%
> Active compaction remaining time : n/a
> {code}
> 1) those are ranges, not bytes
> 2) it's not at 87.28%, it's at ~4%. the method for calculating progress in
> Cassandra is wrong: it neglects to sort the tokens it's iterating through
> (ViewBuilder.java) and thus ends up with a random number.
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