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From "Carsten Ziegeler (JIRA)" <j...@apache.org>
Subject [jira] [Resolved] (SLING-5965) Metrics and a Health-Check for Scheduler to detect long-running Quartz-Jobs
Date Tue, 22 Aug 2017 09:13:00 GMT

     [ https://issues.apache.org/jira/browse/SLING-5965?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Carsten Ziegeler resolved SLING-5965.
-------------------------------------
    Resolution: Fixed

Agreed, setting dependency back to 3.1

> Metrics and a Health-Check for Scheduler to detect long-running Quartz-Jobs
> ---------------------------------------------------------------------------
>
>                 Key: SLING-5965
>                 URL: https://issues.apache.org/jira/browse/SLING-5965
>             Project: Sling
>          Issue Type: New Feature
>          Components: Commons
>    Affects Versions: Commons Scheduler 2.5.0
>            Reporter: Stefan Egli
>            Assignee: Stefan Egli
>             Fix For: Commons Scheduler 2.6.4
>
>         Attachments: numRunningJobs.jpg, oldestRunningJob.jpg, patch.txt, SchedulerHealthCheck.jpg,
SLING-5965.patch, SLING-5965.v2.patch.txt, SLING-5965.v3.patch.txt, SLING-5965.v4.patch.txt,
SLING-5965.v5.patch.txt, timers.jpg
>
>
> Sling Scheduler jobs (aka Quartz-Jobs) should typically be fast running jobs. They are
served from a thread-pool and should occupy that thread only for a short amount of time.
> If there are 'misbehaving' quartz-jobs that run for a very long time, they start to occupy
threads from that thread-pool, thus have an influence on the performance of other scheduled/quartz-jobs.
> We should have metrics (using [sling.commons.metrics|https://sling.apache.org/documentation/bundles/metrics.html])
that provide information about internas of Sling Scheduler, such as average, max etc duration
of scheduled jobs, as well as how many jobs are currently running and since when was the oldest
job running.
> Based on this, a Health-Check can monitor the 'oldest job running' metric and flag {{critical}}
when eg the oldest job is older than {{60'000ms}} (configurable, default).



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