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https://issues.apache.org/jira/browse/OPENJPA-1844?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Michael Dick resolved OPENJPA-1844.
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Resolution: Fixed
If there's more work to be done for this issue please re-open, or open a sub
task for the remaining work.
> Create a JConsole plugin to display DataCache statistics and help tune the
> cache
> --------------------------------------------------------------------------------
>
> Key: OPENJPA-1844
> URL: https://issues.apache.org/jira/browse/OPENJPA-1844
> Project: OpenJPA
> Issue Type: Improvement
> Components: datacache, instrumentation
> Reporter: Rick Curtis
> Assignee: Rick Curtis
> Fix For: 2.1.0
>
> Attachments: screenshot.jpg
>
>
> I have created a simple JConsole plugin that will enable a OpenJPA user to
> view DataCache statistics and it also allows for some runtime interactions
> with the cache. These changes are going to come in two parts. The first part
> will be the plugin side of changes and second part is going to come via
> another JIRA which will feature the OpenJPA core runtime changes.
> The features that I have currently implemented are:
> - A view of cache hits, reads, and writes.
> - A button to evict the entire contents of the cache.
> - A button to reset the statistics.
> - A check box to enable / disable statistics gathering
> - The ability to disable / enable caching specific types.
> I would like to add the following features:
> - Show the current DataCache configuration and show what (if any) changes
> have been made at runtime (ie: Stopped caching a certain type).
> - Allow changing the cache size.
> - Evict only a certain type.
> - Make some cute bar charts for hit/miss ratio.
> This works both in a JSE environment and in a WebSphere environment(sans
> security). I'll add more details on how to run jconsole with the plugin once
> I have some code committed.
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