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From "Eric Evans (JIRA)" <j...@apache.org>
Subject [jira] Commented: (CASSANDRA-698) ClusterProbe
Date Thu, 14 Jan 2010 21:47:54 GMT

    [ https://issues.apache.org/jira/browse/CASSANDRA-698?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12800374#action_12800374
] 

Eric Evans commented on CASSANDRA-698:
--------------------------------------

Isn't this still technically still a node operation, (i.e. it is the end-points according
to some node)? This doesn't seem much different in scope to the `ring' sub-command of NodeProbe.

Originally, I had intended for NodeProbe to be a class to abstract all of the tedious JMX-related
boilerplate, allowing other applications (be they node or cluster in scope), to be built upon
it. I stuck a main() on it mainly so that we'd have *something*. In retrospect, that was probably
a mistake.

Would it make sense to move the getEndPoints(key) method to NodeProbe, and refactor all of
the other stuff (the stuff there in support of a console application) into another class(es)?

FYI, I think this patch is missing the addition of getLiveNaturalEndpoints(String key) to
StorageServiceMBean.


> ClusterProbe
> ------------
>
>                 Key: CASSANDRA-698
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-698
>             Project: Cassandra
>          Issue Type: New Feature
>    Affects Versions: 0.9
>            Reporter: Chris Goffinet
>            Assignee: Chris Goffinet
>            Priority: Minor
>             Fix For: 0.9
>
>         Attachments: 0001-Added-ClusterProbe.-Supports-get_endpoints-key.patch
>
>
> I'd like to introduce ClusterProbe, for situations where you want to find information
at cluster level. The first operation is get_endpoints, where you can supply a key. I want
to also add support for showing hit ratio for column families at cluster level.

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