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From "Dag H. Wanvik (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (DERBY-5772) Give users a way to monitor more Derby internals.
Date Wed, 26 Mar 2014 14:10:17 GMT

    [ https://issues.apache.org/jira/browse/DERBY-5772?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13947942#comment-13947942
] 

Dag H. Wanvik commented on DERBY-5772:
--------------------------------------

- The prepared statement cache: size, % filled, statement texts on demand
- View current locks
- Current transaction


> Give  users a way to monitor more Derby internals.
> --------------------------------------------------
>
>                 Key: DERBY-5772
>                 URL: https://issues.apache.org/jira/browse/DERBY-5772
>             Project: Derby
>          Issue Type: Improvement
>          Components: JMX, Tools
>    Affects Versions: 10.9.1.0
>            Reporter: Rick Hillegas
>
> We should give users a way to track hits/misses in the page cache. This will help users
tune the size of the page cache. JMX-visible monitors might be a useful solution here. See
the following email thread: http://old.nabble.com/Cache-Hit-Miss-rates-for-Derby-pageCache-to33865646.html#a33865646



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