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https://issues.apache.org/jira/browse/CASSANDRA-13642?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16065324#comment-16065324
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ASF GitHub Bot commented on CASSANDRA-13642:
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GitHub user clohfink opened a pull request:
https://github.com/apache/cassandra/pull/126
Expose recent histograms for CASSANDRA-13642
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/clohfink/cassandra 13642
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/cassandra/pull/126.patch
To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:
This closes #126
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commit cc429b062d7e30d4e38f3e12c1cf7a35f1fdc119
Author: Chris Lohfink <[email protected]>
Date: 2017-06-27T19:10:50Z
Expose recent histograms for CASSANDRA-13642
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> Expose recent histograms in JmxHistograms
> -----------------------------------------
>
> Key: CASSANDRA-13642
> URL: https://issues.apache.org/jira/browse/CASSANDRA-13642
> Project: Cassandra
> Issue Type: Improvement
> Components: Observability
> Reporter: Chris Lohfink
> Assignee: Chris Lohfink
>
> For monitoring tools that were written for the recent*Histograms the current
> decaying and all time values exposed by the JmxHistograms is not consumable.
> We can add a new attribute (easier with some tooling than operations to read)
> to expose it just like in storage service previously.
> Should additionally make it so this attribute only stores previous values if
> read, so that it does not add any additional memory cost to C* unless used
> since we already storing 2 versions of histogram for the decaying/alltime
> views.
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