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https://issues.apache.org/jira/browse/CASSANDRA-16844?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17414288#comment-17414288
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Andres de la Peña commented on CASSANDRA-16844:
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Looks good. I was thinking that perhaps we could name the new column "sstables"
instead of "count" if it's easier to understand what are we counting, I'm not
sure about this. Also the column could be immediately to the left of the
"table" column, so the left part of the table indicates what are we compacting
and the right part of the table indicates the progress of the compaction. For
example:
{code:java}
id compaction type keyspace table sstables completed total unit progress
(...) Compaction k t 2 189439592 422339911 bytes 44.85%
{code}
Instead of
{code:java}
id compaction type keyspace table completed total unit progress count
(...) Compaction k t 189439592 422339911 bytes 44.85% 2
{code}
Would it make any sense?
We will also need to update the [doc about
{{compactionstats}}|https://github.com/apache/cassandra/blob/09c89e5f5f8604301c233130dfb6e82a36ae30f3/doc/source/troubleshooting/use_nodetool.rst#compaction-state]
with the new column.
> Add number of sstables in a compaction to compactionstats output
> ----------------------------------------------------------------
>
> Key: CASSANDRA-16844
> URL: https://issues.apache.org/jira/browse/CASSANDRA-16844
> Project: Cassandra
> Issue Type: Improvement
> Components: Tool/nodetool
> Reporter: Brendan Cicchi
> Assignee: Brandon Williams
> Priority: Normal
> Fix For: 4.x
>
>
> It would be helpful to know at a glance how many sstables are involved in any
> running compactions. While this information can certainly be collected now, a
> user has to grab it from the debug logs. I think it would be helpful for some
> use cases to have this information straight from {{nodetool compactionstats}}
> and then if the actual sstables involved in the compactions are desired, dive
> into the debug.log for that. I think it would also be good to have this
> information in the output of {{nodetool compactionhistory}}.
>
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