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From "Rick Hillegas (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (DERBY-5772) Give users a way to monitor more Derby internals.
Date Wed, 19 Feb 2014 13:30:22 GMT

     [ https://issues.apache.org/jira/browse/DERBY-5772?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

Rick Hillegas updated DERBY-5772:

    Summary: Give  users a way to monitor more Derby internals.  (was: Give  users a way to
monitor hits/misses in the page cache.)

Broadening the scope of this issue from just cache hits/misses to include more monitors in
general. For instance, we also get many requests to provide a way to track the number of open
connections to a database. See http://apache-database.10148.n7.nabble.com/Number-of-connection-to-an-embedded-derby-database-td137214.html

> 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:
>            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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