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https://issues.apache.org/jira/browse/CASSANDRA-20081?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=18055072#comment-18055072
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Arvind Kandpal commented on CASSANDRA-20081:
--------------------------------------------
Hi [~dnk] ,
Yes, these failures are related to the changes in this ticket.
I investigated the logs, and it is caused by a compaction strategy mismatch.
The {{CompactionHistoryTest}} expects the output to show
{{{}SizeTieredCompactionStrategy{}}}, but the CI environment defaults to
{{UnifiedCompactionStrategy}} (UCS) in these runs, causing the assertion to
fail.
Since this ticket is already resolved, I have created a follow-up ticket to fix
this regression: https://issues.apache.org/jira/browse/CASSANDRA-21145
> Enhance nodetool compactionhistory to report compaction type and strategy
> -------------------------------------------------------------------------
>
> Key: CASSANDRA-20081
> URL: https://issues.apache.org/jira/browse/CASSANDRA-20081
> Project: Apache Cassandra
> Issue Type: New Feature
> Components: Tool/nodetool
> Reporter: Brad Schoening
> Assignee: Arvind Kandpal
> Priority: Normal
> Fix For: 5.1
>
> Time Spent: 1h 50m
> Remaining Estimate: 0h
>
> It would be useful for compactionhistory to have:
> a) updated documentation for nodetool [compactionhistory
> |https://cassandra.apache.org/doc/5.0/cassandra/managing/tools/nodetool/compactionhistory.html]
> describing the columns *rows_merged* and {*}compaction_properties{*}. This
> StackOverflow article provides a good descriptions of rows_merged: [What
> does rows_merged mean in
> compactionhistory|https://stackoverflow.com/questions/27566558/what-does-rows-merged-mean-in-compactionhistory]
> b) the compaction strategy used: STCS, LCS, TWCS, UCS and sub-properties. For
> example, with level, the from-level and to-level could be reported.
> c) also useful would be to make the bytes in and out human readable by
> default, since there is already an -f option for machine readable output.
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