Prasad Wagle created ZEPPELIN-1755:
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Summary: CronJob.execute thread hangs because of a race condition
Key: ZEPPELIN-1755
URL: https://issues.apache.org/jira/browse/ZEPPELIN-1755
Project: Zeppelin
Issue Type: Bug
Reporter: Prasad Wagle
Priority: Minor
If paragraph is created while the scheduled report is executing, its status is
READY. This causes CronJob.execute thread to hang in the "while
(!note.isTerminated())" loop.
"QuartzScheduler_Worker-2" #42 prio=5 os_prio=31 tid=0x00007faa9c7b5000
nid=0x6f13 waiting on condition [0x000000012e2aa000]
java.lang.Thread.State: TIMED_WAITING (sleeping)
at java.lang.Thread.sleep(Native Method)
at org.apache.zeppelin.notebook.Notebook$CronJob.execute(Notebook.java:
836)
at org.quartz.core.JobRunShell.run(JobRunShell.java:202)
at org.quartz.simpl.SimpleThreadPool$WorkerThread.run(SimpleThreadPool.
java:573)
- locked <0x0000000780295f10> (a java.lang.Object)
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