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https://issues.apache.org/jira/browse/AURORA-560?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Bill Farner reassigned AURORA-560:
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Assignee: Bill Farner
> Scheduler may hang while tearing down due to Quartz thread
> ----------------------------------------------------------
>
> Key: AURORA-560
> URL: https://issues.apache.org/jira/browse/AURORA-560
> Project: Aurora
> Issue Type: Bug
> Components: Scheduler
> Reporter: Bill Farner
> Assignee: Bill Farner
>
> Noticed this in vagrant - scheduler is stuck tearing down, with this thread
> keeping it alive:
> {noformat}
> "aurora-cron-1_QuartzSchedulerThread" prio=10 tid=0x00007f215c98b000
> nid=0x307a in Object.wait() [0x00007f21179b8000]
> java.lang.Thread.State: TIMED_WAITING (on object monitor)
> at java.lang.Object.wait(Native Method)
> at
> org.quartz.core.QuartzSchedulerThread.run(QuartzSchedulerThread.java:253)
> - locked <0x00000000e131f170> (a java.lang.Object)
> {noformat}
> It turns out that construction of the Scheduler ends up creating and starting
> a non-daemon {{QuartzSchedulerThread}} within quartz code. We should be able
> to fix this by registering a shutdown hook upfront rather than doing so when
> we receive {{SchedulerActive}}.
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