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From "Sammy Yu (JIRA)" <>
Subject [jira] Created: (CASSANDRA-272) Enhance how metrics are exposed
Date Wed, 01 Jul 2009 17:11:47 GMT
Enhance how metrics are exposed

                 Key: CASSANDRA-272
             Project: Cassandra
          Issue Type: New Feature
    Affects Versions: 0.3
            Reporter: Sammy Yu
            Assignee: Sammy Yu
            Priority: Minor
             Fix For: 0.3

Had discussion on IRC about the metric interfaces that are used in the code today.  There
are two sets one using IAnalyticsSource to send data to Gangalia and another set of interface
using JMX MBeans (ie, ColumnStoreFamily).  

Since FB is not using Gangalia anymore and it looks like the other VMAnalyticsSource is already
available via JMX, we should prefer to expose metrics through JMX.  I will add a new TableMBean
which exposes the metrics in  DBAnalyticsSource.

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