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Posted to dev@sling.apache.org by "Georg Henzler (JIRA)" <ji...@apache.org> on 2017/03/23 06:24:41 UTC

[jira] [Created] (SLING-6698) Thread Usage Health Check

Georg Henzler created SLING-6698:
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             Summary: Thread Usage Health Check
                 Key: SLING-6698
                 URL: https://issues.apache.org/jira/browse/SLING-6698
             Project: Sling
          Issue Type: New Feature
          Components: Health Check
            Reporter: Georg Henzler
            Assignee: Georg Henzler


This health check should use java.lang.management.ThreadMXBean to provide the following:

* A quick overview what an instance is doing via http (there are many other means of monitoring, but there is nothing easier than using the the HC servlet). This works well as all relevant tasks in sling (requests, jobs, schedulers) set the thread name to a meaningful name
* It should WARN if all threads are highly utilised (but never send CRITICAL as a fully utilised instance is not necessarily a problem)
* It should use the deadlock detection of ThreadMXBean of send CRITICAL





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