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Posted to yarn-issues@hadoop.apache.org by "Bilwa S T (Jira)" <ji...@apache.org> on 2020/07/06 17:25:01 UTC
[jira] [Commented] (YARN-10341) Yarn Service Container Completed
event doesn't get processed
[ https://issues.apache.org/jira/browse/YARN-10341?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17152182#comment-17152182 ]
Bilwa S T commented on YARN-10341:
----------------------------------
cc [~eyang]
> Yarn Service Container Completed event doesn't get processed
> -------------------------------------------------------------
>
> Key: YARN-10341
> URL: https://issues.apache.org/jira/browse/YARN-10341
> Project: Hadoop YARN
> Issue Type: Bug
> Reporter: Bilwa S T
> Assignee: Bilwa S T
> Priority: Critical
> Attachments: YARN-10341.001.patch
>
>
> If there 10 workers running and if containers get killed , after a while we see that there are just 9 workers runnning. This is due to CONTAINER COMPLETED Event is not processed on AM side.
> Issue is in below code:
> {code:java}
> public void onContainersCompleted(List<ContainerStatus> statuses) {
> for (ContainerStatus status : statuses) {
> ContainerId containerId = status.getContainerId();
> ComponentInstance instance = liveInstances.get(status.getContainerId());
> if (instance == null) {
> LOG.warn(
> "Container {} Completed. No component instance exists. exitStatus={}. diagnostics={} ",
> containerId, status.getExitStatus(), status.getDiagnostics());
> return;
> }
> ComponentEvent event =
> new ComponentEvent(instance.getCompName(), CONTAINER_COMPLETED)
> .setStatus(status).setInstance(instance)
> .setContainerId(containerId);
> dispatcher.getEventHandler().handle(event);
> }
> {code}
> If component instance doesnt exist for a container, it doesnt iterate over other containers as its returning from method
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