Li Sheng created ZEPPELIN-1941:
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Summary: Zeppelin CronJob with release option result in deadlock
Key: ZEPPELIN-1941
URL: https://issues.apache.org/jira/browse/ZEPPELIN-1941
Project: Zeppelin
Issue Type: Bug
Components: Interpreters
Affects Versions: 0.6.2, 0.6.1, 0.6.0
Reporter: Li Sheng
Fix For: 0.7.0
There is a deadlock in concurrent cron job with release resource option.
Scenario:
Two notebook run with cron job that release resource after job finished.
In Notebook.CronJob.execute() method:
T1. note.runAll(); // locked paragraphs(lock) and wait to
interpreterSettings(lock)
T2. notebook.getInterpreterFactory().restart()
//locked(interpreterSettings) and wait for paragraphs(lock) during jobAbort.
This will trigger a deadlock that cause zeppelin hang.
Detail stack trace please refer `deadlock_cronjob.jstack`
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