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https://issues.apache.org/jira/browse/CASSANDRA-4537?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13453326#comment-13453326
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Jonathan Ellis commented on CASSANDRA-4537:
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+1, lgtm
nit: getLevelSize call is a little confusing since it handles i >
generations.length, inlining to generations[i].size might be more clear
> We should emit number of sstables in each level from JMX
> --------------------------------------------------------
>
> Key: CASSANDRA-4537
> URL: https://issues.apache.org/jira/browse/CASSANDRA-4537
> Project: Cassandra
> Issue Type: Bug
> Affects Versions: 1.0.0
> Reporter: sankalp kohli
> Assignee: Yuki Morishita
> Priority: Minor
> Labels: compaction, leveled
> Fix For: 1.2.1
>
> Attachments: 4537.txt, 4537-v2.txt
>
> Original Estimate: 12h
> Remaining Estimate: 12h
>
> We should add methods to this Mbean
> org.apache.cassandra.db.ColumnFamilyStoreMBean
> These metrics will be helpful to see how sstables are distributed in
> different levels and how they move to higher level with time.
> Currently we can see this by looking at the json file but with JMX, we can
> monitor the historic values over time using any monitoring tool.
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