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Posted to issues@spark.apache.org by "Sean Owen (JIRA)" <ji...@apache.org> on 2017/07/04 12:07:00 UTC
[jira] [Commented] (SPARK-21303) Web-UI shows some Jobs get stuck
randomly and stays like that. Neither able to kill
[ https://issues.apache.org/jira/browse/SPARK-21303?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16073540#comment-16073540 ]
Sean Owen commented on SPARK-21303:
-----------------------------------
I don't think this narrows it down nearly enough to be a Spark problem. Your app could be stuck in its own code or just running a while.
> Web-UI shows some Jobs get stuck randomly and stays like that. Neither able to kill
> -----------------------------------------------------------------------------------
>
> Key: SPARK-21303
> URL: https://issues.apache.org/jira/browse/SPARK-21303
> Project: Spark
> Issue Type: Bug
> Components: DStreams
> Affects Versions: 2.1.0, 2.1.1
> Environment: Kubernetes 1.4.12 on AWS
> OS Ubuntu
> Spark 2.1.1
> Cassandra 3.9
> Reporter: Arun Achuthan
> Fix For: 2.1.1
>
>
> We are running a streaming application which was running without any issues for long. Last few days we are seeing some jobs randomly getting stuck on the web ui. This doesn't stop the application as the following jobs are successful. The stuck jobs remain in the web-ui as stuck with no progress. These are the observations we made. At the time the first job is shown stuck on UI the driver logs mention this
> 2017-07-04 05:33:20,189 ERROR [dag-scheduler-event-loop] org.apache.spark.scheduler.LiveListenerBus: Dropping SparkListenerEvent because no remaining room in event queue. This likely means one of the SparkListeners is too slow and cannot keep up with the rate at which tasks are being started by the scheduler.
> For every other random stuck job the driver logs mention the below at the same time
> 2017-07-04 05:33:20,194 WARN [dispatcher-event-loop-0] org.apache.spark.scheduler.LiveListenerBus: Dropped 1 SparkListenerEvents since Thu Jan 01 00:00:00 UTC 1970
>
> 2017-07-04 05:49:31,571 WARN [dag-scheduler-event-loop] org.apache.spark.scheduler.LiveListenerBus: Dropped 1 SparkListenerEvents since Tue Jul 04 05:34:20 UTC 2017
> After the jobs starts getting stuck we are experiencing performance drops as well as scheduling delays within the application. We couldn't find any other significant errors in the driver logs.
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