[jira] [Resolved] (SOLR-9731) Add jvm-wide JMX statistics for Solr

["Shalin Shekhar Mangar (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/SOLR-9731?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Shalin Shekhar Mangar resolved SOLR-9731.
-----------------------------------------
    Resolution: Implemented

This was implemented by SOLR-4735 and related improvements. JVM wide stats are exposed with both JMX and the /admin/metrics API. Please open issues for specific improvements around metrics.

> Add jvm-wide JMX statistics for Solr
> ------------------------------------
>
>                 Key: SOLR-9731
>                 URL: https://issues.apache.org/jira/browse/SOLR-9731
>             Project: Solr
>          Issue Type: Improvement
>      Security Level: Public(Default Security Level. Issues are Public) 
>            Reporter: Erick Erickson
>
> The statistics that can currently be gathered via JMX tend to be core-specific, making monitoring "how is the Solr node doing" harder than it needs to be. This JIRA is about exploring what it would take for instance-wide statistics to be JMX-enabled.
> I'm imagining cumulative stats like:
> > How many Solr<->Solr communications errors have there been?
> > How many Solr<->ZK communication errors have there been
> > How many full synchronizations have happened across all replicas?
> > Operations people, fill in your favorite health monitoring bit here.
> What do people think? Is JMX even the right thing? We have an admin end-point for gathering information, but that's not as "operations friendly".
> I'm open to any suggestions for how/where to implement this, whether there are any huge "gotchas", bottleneck concerns, etc.



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