[jira] [Updated] (SOLR-9896) Instrument and collect metrics from thread pools

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

     [ https://issues.apache.org/jira/browse/SOLR-9896?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Shalin Shekhar Mangar updated SOLR-9896:
----------------------------------------
    Attachment: SOLR-9896.patch

Patch which instruments the following thread pools:
# UpdateShardHandler's updateExecutor and recoveryExecutor at the path {{solr.http/updateShardHandler.threadPool.updateExecutor}} and {{solr.http/updateShardHandler.threadPool.recoveryExecutor}}
# HttpShardHandler's httpShardExecutor at {{solr.http/httpShardHandler.threadPool.httpShardExecutor}}
# CoreAdminHandler's parallelCoreAdminExecutor at {{solr.node/QUERYHANDLER./admin/cores.threadPool.parallelCoreAdminExecutor}}
# CoreContainer's coreContainerWorkExecutor and coreLoadExecutor at {{solr.node/threadPool.coreContainerWorkExecutor}} and {{solr.node/coreLoadExecutor}}

There are still other thread pools in IndexFetcher and CDCR components which aren't instrumented but this is a good start. We can add instrumentation if people find them interesting.

> Instrument and collect metrics from thread pools
> ------------------------------------------------
>
>                 Key: SOLR-9896
>                 URL: https://issues.apache.org/jira/browse/SOLR-9896
>             Project: Solr
>          Issue Type: Improvement
>      Security Level: Public(Default Security Level. Issues are Public) 
>          Components: metrics
>            Reporter: Shalin Shekhar Mangar
>            Assignee: Shalin Shekhar Mangar
>             Fix For: master (7.0), 6.4
>
>         Attachments: SOLR-9896.patch
>
>
> The metrics-core library has a InstrumentedExecutorService which collects stats on submitted, running, completed tasks and durations. This issue will expose such stats for all important thread pools in solr.



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