[
https://issues.apache.org/jira/browse/FLINK-4540?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Roman Maier reassigned FLINK-4540:
----------------------------------
Assignee: Roman Maier
> Detached job execution may prevent cluster shutdown
> ---------------------------------------------------
>
> Key: FLINK-4540
> URL: https://issues.apache.org/jira/browse/FLINK-4540
> Project: Flink
> Issue Type: Bug
> Components: YARN
> Affects Versions: 1.2.0, 1.1.2
> Reporter: Maximilian Michels
> Assignee: Roman Maier
> Priority: Minor
> Fix For: 1.2.0
>
>
> There is a problem with the detached execution of jobs. This can prevent
> cluster shutdown 1) when eager jobs are executed, i.e. the job calls
> `collect()/count()`, and 2) when the user jar doesn't contain a job.
> 1) For example, {{./flink -d -m yarn-cluster -yn 1
> ../examples/batch/WordCount.jar}} will throw an exception and only disconnect
> the YarnClusterClient afterwards. In detached mode, the code assumes the
> cluster is shutdown through the {{shutdownAfterJob}} method which ensures
> that the YarnJobManager shuts down after the job completes. Due to the
> exception thrown when executing eager jobs, the jobmanager never receives a
> job and thus never shuts down the cluster.
> 2) The same problem also occurs in detached execution when the user jar
> doesn't contain a job.
> A good solution would be to defer cluster startup until the job has been
> fully assembled.
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
