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https://issues.apache.org/jira/browse/SOLR-1972?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Alan Woodward updated SOLR-1972:
--------------------------------
Attachment: SOLR-1972_forked-metrics.patch
Here's a patch that copies the relevant classes (Counter and Timer and their
supporting utility classes) from the metrics library into a new solr package.
The Counter and Timer objects in RequestHandlerBase are now set at init time
(they could probably be final, actually), and there's no concurrenthashmap or
registry to use up permgen space. All tests pass. There are a bunch of
license headers and javadoc comments to add, but I thought I'd throw this up
here first to make sure that people are happy with this approach.
> Need additional query stats in admin interface - median, 95th and 99th
> percentile
> ---------------------------------------------------------------------------------
>
> Key: SOLR-1972
> URL: https://issues.apache.org/jira/browse/SOLR-1972
> Project: Solr
> Issue Type: Improvement
> Components: web gui
> Affects Versions: 1.4
> Reporter: Shawn Heisey
> Assignee: Alan Woodward
> Priority: Minor
> Fix For: 4.2, 5.0
>
> Attachments: elyograg-1972-3.2.patch, elyograg-1972-3.2.patch,
> elyograg-1972-trunk.patch, elyograg-1972-trunk.patch,
> elyograg-closeable.patch, leak-closeable.patch, leak.patch,
> revert-SOLR-1972.patch, SOLR-1972-branch3x-url_pattern.patch,
> SOLR-1972-branch4x.patch, SOLR-1972-branch4x.patch,
> SOLR-1972_forked-metrics.patch, SOLR-1972_metrics.patch,
> SOLR-1972_metrics.patch, SOLR-1972_metrics.patch, SOLR-1972_metrics.patch,
> SOLR-1972_metrics.patch, SOLR-1972_metrics.patch, SOLR-1972_metrics.patch,
> SOLR-1972_metrics.patch, solr1972-metricsregistry-branch4x-failure.log,
> SOLR-1972.patch, SOLR-1972.patch, SOLR-1972.patch, SOLR-1972.patch,
> SOLR-1972-url_pattern.patch, stacktraces.tar.gz
>
>
> I would like to see more detailed query statistics from the admin GUI. This
> is what you can get now:
> requests : 809
> errors : 0
> timeouts : 0
> totalTime : 70053
> avgTimePerRequest : 86.59209
> avgRequestsPerSecond : 0.8148785
> I'd like to see more data on the time per request - median, 95th percentile,
> 99th percentile, and any other statistical function that makes sense to
> include. In my environment, the first bunch of queries after startup tend to
> take several seconds each. I find that the average value tends to be useless
> until it has several thousand queries under its belt and the caches are
> thoroughly warmed. The statistical functions I have mentioned would quickly
> eliminate the influence of those initial slow queries.
> The system will have to store individual data about each query. I don't know
> if this is something Solr does already. It would be nice to have a
> configurable count of how many of the most recent data points are kept, to
> control the amount of memory the feature uses. The default value could be
> something like 1024 or 4096.
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