Could you paste the log ?
Best Regard, Jeff Zhang From: Mark Libucha <[email protected]<mailto:[email protected]>> Reply-To: "[email protected]<mailto:[email protected]>" <[email protected]<mailto:[email protected]>> Date: Friday, October 7, 2016 at 12:11 AM To: "[email protected]<mailto:[email protected]>" <[email protected]<mailto:[email protected]>> Subject: Re: No active SparkContext black hole Actually, it's stuck in the Running state. Trying to cancel it causes the No active SparkContext to appear in the log. Seems like a bug. On Thu, Oct 6, 2016 at 9:06 AM, Mark Libucha <[email protected]<mailto:[email protected]>> wrote: Hello again, On "longer" running jobs (I'm using yarn-client mode), I sometimes get RPC timeouts. Seems like Zeppelin is losing connectivity with the Spark cluster. I can deal with that. But my notebook has sections stuck in the "Cancel" state, and I can't get them out. When I re-click on cancel, I see "No active SparkContext" in the log. But I can't reload a new instance of the notebook, or kill the one that's stuck, without restarting all of zeppelin. Suggestions? Thanks, Mark
