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From "Yuki Morishita (JIRA)" <>
Subject [jira] [Updated] (CASSANDRA-4009) Increase usage of Metrics and flesh out o.a.c.metrics
Date Mon, 06 Aug 2012 04:15:04 GMT


Yuki Morishita updated CASSANDRA-4009:

    Attachment: 4009-v2.txt

V2 attached.

Major changes:
- "Recent" metrics are removed from new version and replaced with Meter type which provides
1-, 5-, 15-min average. (almost all. recent bloomfilter metrics still remain since I could
not figure out clean way to access metrics from SSTableReader object.)
- Use Timer, RateGauge, Histogram, where possible.
- Add Streaming metrics.
> Increase usage of Metrics and flesh out o.a.c.metrics
> -----------------------------------------------------
>                 Key: CASSANDRA-4009
>                 URL:
>             Project: Cassandra
>          Issue Type: Improvement
>            Reporter: Brandon Williams
>            Assignee: Yuki Morishita
>            Priority: Minor
>             Fix For: 1.2
>         Attachments: 4009-v2.txt, 4009.txt, 4009.txt
> With CASSANDRA-3671 we have begun using the Metrics packages to expose stats in a new
JMX structure, intended to be more user-friendly (for example, you don't need to know what
a StorageProxy is or does.)  This ticket serves as a parent for subtasks to finish fleshing
out the rest of the enhanced metrics.

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