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From "Chris Lohfink (JIRA)" <j...@apache.org>
Subject [jira] [Comment Edited] (CASSANDRA-7273) expose global ColumnFamily metrics
Date Sun, 22 Jun 2014 04:26:24 GMT

    [ https://issues.apache.org/jira/browse/CASSANDRA-7273?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14040030#comment-14040030
] 

Chris Lohfink edited comment on CASSANDRA-7273 at 6/22/14 4:24 AM:
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I moved the GCF metrics into bean provided in description and made the keyspace metrics register/cleanup
in similar way.  There is a few provided by GCF that isnt listed in keyspace but they are
mostly the ones that (like yuki mentioned) would have less meaning like bloom filter false
positive ratio so I think its ok to go without them. ([^7273-2_1_branch-v2.txt])


was (Author: cnlwsu):
I moved the GCF metrics into bean provided in description and made the keyspace metrics register/cleanup
in similar way.  There is a few provided by GCF that isnt listed in keyspace but they are
mostly the ones that (like yuki mentioned) would have less meaning like bloom filter false
positive ratio so I think its ok to go without them.

> expose global ColumnFamily metrics
> ----------------------------------
>
>                 Key: CASSANDRA-7273
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-7273
>             Project: Cassandra
>          Issue Type: New Feature
>            Reporter: Richard Wagner
>            Assignee: Brandon Williams
>            Priority: Minor
>              Labels: lhf
>             Fix For: 1.2.17
>
>         Attachments: 7273-2_1_branch-v1.txt, 7273-2_1_branch-v2.txt
>
>
> It would be very useful to have cassandra expose ColumnFamily metrics that span all column
families. A general purpose cassandra monitoring system built up around the current ColumnFamily
metrics really only has a couple of choices right now: publish metrics for all column families
or fetch metrics for all column families, aggregate them and then publish the aggregated metrics.
The first can be quite expensive for the downstream monitoring system and the second is a
piece of work that it seems is better pushed into cassandra itself.
> Perhaps these global ColumnFamily metrics could be published under a name of:
> org.apache.cassandra.metrics:type=(ColumnFamily|IndexColumnFamily),name=(Metric name)
> (Same as existing ColumnFamily metrics, but with no keyspace or scope.)



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