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From "Andrzej Bialecki (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (SOLR-4735) Improve Solr metrics reporting
Date Tue, 20 Dec 2016 11:54:58 GMT

     [ https://issues.apache.org/jira/browse/SOLR-4735?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Andrzej Bialecki  updated SOLR-4735:
------------------------------------
    Attachment: SOLR-4735.patch

Uploaded final diff between the branch and master, for completeness.

> Improve Solr metrics reporting
> ------------------------------
>
>                 Key: SOLR-4735
>                 URL: https://issues.apache.org/jira/browse/SOLR-4735
>             Project: Solr
>          Issue Type: Improvement
>          Components: metrics
>            Reporter: Alan Woodward
>            Assignee: Andrzej Bialecki 
>            Priority: Minor
>             Fix For: master (7.0)
>
>         Attachments: SOLR-4735.patch, SOLR-4735.patch, SOLR-4735.patch, SOLR-4735.patch,
SOLR-4735.patch, SOLR-4735.patch, screenshot-2.png
>
>
> Following on from a discussion on the mailing list:
> http://search-lucene.com/m/IO0EI1qdyJF1/codahale&subj=Solr+metrics+in+Codahale+metrics+and+Graphite+
> It would be good to make Solr play more nicely with existing devops monitoring systems,
such as Graphite or Ganglia.  Stats monitoring at the moment is poll-only, either via JMX
or through the admin stats page.  I'd like to refactor things a bit to make this more pluggable.
> This patch is a start.  It adds a new interface, InstrumentedBean, which extends SolrInfoMBean
to return a [[Metrics|http://metrics.codahale.com/manual/core/]] MetricRegistry, and a couple
of MetricReporters (which basically just duplicate the JMX and admin page reporting that's
there at the moment, but which should be more extensible).  The patch includes a change to
RequestHandlerBase showing how this could work.  The idea would be to eventually replace the
getStatistics() call on SolrInfoMBean with this instead.
> The next step would be to allow more MetricReporters to be defined in solrconfig.xml.
 The Metrics library comes with ganglia and graphite reporting modules, and we can add contrib
plugins for both of those.
> There's some more general cleanup that could be done around SolrInfoMBean (we've got
two plugin handlers at /mbeans and /plugins that basically do the same thing, and the beans
themselves have some weirdly inconsistent data on them - getVersion() returns different things
for different impls, and getSource() seems pretty useless), but maybe that's for another issue.



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