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From "Jonathan Ellis (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (CASSANDRA-2805) Clean up mbeans that return Internal Cassandra types
Date Sat, 02 Jul 2011 23:22:21 GMT

    [ https://issues.apache.org/jira/browse/CASSANDRA-2805?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13059144#comment-13059144
] 

Jonathan Ellis commented on CASSANDRA-2805:
-------------------------------------------

If you can list which methods to clean up, this would be a good ticket for the surprisingly
frequently asked, "What's a good place to get my feet wet in the Cassandra code?"

> Clean up mbeans that return Internal Cassandra types
> ----------------------------------------------------
>
>                 Key: CASSANDRA-2805
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-2805
>             Project: Cassandra
>          Issue Type: Bug
>    Affects Versions: 0.8.1
>            Reporter: Nick Bailey
>            Assignee: Nick Bailey
>            Priority: Minor
>             Fix For: 0.8.2
>
>
> We need to clean up wherever we return internal cassandra objects over jmx. Namely CompactionInfo
objects as well as Tokens. There may be a few other examples.
> This is bad for two reasons
> 1. You have to load the cassandra jar when querying these mbeans, which sucks.
> 2. Stuff breaks between versions when things are moved. For example, CASSANDRA-1610 moves
the compaction related classes around. Any code querying those jmx mbeans in 0.8.0 is now
broken in 0.8.2. (assuming those moves stay in the 0.8 branch)
> For things like CompactionInfo we should just expose more mbean methods or serialize
to something standard like json.
> I'd like to target this for 0.8.2. Since we've already broken compatibility between 0.8.0
and 0.8.1, I'd say just fix this everywhere now.

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