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https://issues.apache.org/jira/browse/YARN-1944?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13969861#comment-13969861
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Billie Rinaldi commented on YARN-1944:
--------------------------------------
Having looked into YARN-1922 recently, I wouldn't have expected to see
processes staying around after containers were killed by Yarn. What OS are you
using? Does the "setsid" command exist? I think Yarn only kills the entire
process group if setsid is available.
> Application Container commands fail to stop when application is killed
> ----------------------------------------------------------------------
>
> Key: YARN-1944
> URL: https://issues.apache.org/jira/browse/YARN-1944
> Project: Hadoop YARN
> Issue Type: Bug
> Components: resourcemanager
> Affects Versions: 2.3.0
> Reporter: Oleg Zhurakousky
>
> When launching Yarn Application with an infinite command (e.g., ping
> google.com), Application Container stops while command(s) continues to run.
> For example:
> Command: ping google.com; 4 containers
> Submit app:
> {code}
> ApplicationId appId = this.yarnClient.submitApplication(appContext);
> {code}
> Kill app:
> {code}
> this.yarnClient.killApplication(appId);
> {code}
> Produces the following output:
> {code}
> 13:10:22,017 ERROR IPC Server handler 48 on 8035
> resourcemanager.ApplicationMasterService:328 - Application doesn't exist in
> cache appattempt_1397581697363_0002_000001
> {code}
> Why is it telling me that it doesn't exist when I am using the same AppId
> that was returned by the YarnClient?
> Also, I can see that after the kill the actual application containers stopped:
> {code}
> 13:10:22,128 WARN ContainersLauncher #6
> nodemanager.DefaultContainerExecutor:207 - Exit code from container
> container_1397581697363_0002_01_000002 is : 143
> 13:10:22,151 WARN ContainersLauncher #7
> nodemanager.DefaultContainerExecutor:207 - Exit code from container
> container_1397581697363_0002_01_000003 is : 143
> 13:10:22,175 WARN ContainersLauncher #8
> nodemanager.DefaultContainerExecutor:207 - Exit code from container
> container_1397581697363_0002_01_000004 is : 143
> 13:10:22,198 WARN ContainersLauncher #9
> nodemanager.DefaultContainerExecutor:207 - Exit code from container
> container_1397581697363_0002_01_000005 is : 143
> {code}
> Meanwhile I have 4 pings running.
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