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Posted to yarn-issues@hadoop.apache.org by "Ahmed Hussein (Jira)" <ji...@apache.org> on 2020/12/17 03:36:00 UTC
[jira] [Commented] (YARN-10536) Client in distributedShell swallows
interrupt exceptions
[ https://issues.apache.org/jira/browse/YARN-10536?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17250778#comment-17250778 ]
Ahmed Hussein commented on YARN-10536:
--------------------------------------
The current implementation checks the timeout with reference to {{Client.clientStartTime}}. The latter is the timestamp of the object creation as shown in that [line of code|https://github.com/apache/hadoop/blob/df7f1e5199eed917ff40618708e7641238684d24/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-applications/hadoop-yarn-applications-distributedshell/src/main/java/org/apache/hadoop/yarn/applications/distributedshell/Client.java#L212].
The timeout should be measured when the client gets started (by calling {{run()}}) like in that [line of code|https://github.com/apache/hadoop/blob/df7f1e5199eed917ff40618708e7641238684d24/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-applications/hadoop-yarn-applications-distributedshell/src/main/java/org/apache/hadoop/yarn/applications/distributedshell/Client.java#L671]. I do not think there is a point starting countdown on object creation?
> Client in distributedShell swallows interrupt exceptions
> --------------------------------------------------------
>
> Key: YARN-10536
> URL: https://issues.apache.org/jira/browse/YARN-10536
> Project: Hadoop YARN
> Issue Type: Bug
> Components: client, distributed-shell
> Reporter: Ahmed Hussein
> Assignee: Ahmed Hussein
> Priority: Major
> Labels: pull-request-available
> Time Spent: 10m
> Remaining Estimate: 0h
>
> In {{applications.distributedshell.Client}} , the method {{monitorApplication}} loops waiting for the following conditions:
> * Application fails: reaches {{YarnApplicationState.KILLED}}, or {{YarnApplicationState.FAILED}}
> * Application succeeds: {{FinalApplicationStatus.SUCCEEDED}} or {{YarnApplicationState.FINISHED}}
> * the time spent waiting is longer than {{clientTimeout}} (if it exists in the parameters).
> When the Client thread is interrupted, it ignores the exception:
> {code:java}
> // Check app status every 1 second.
> try {
> Thread.sleep(1000);
> } catch (InterruptedException e) {
> LOG.debug("Thread sleep in monitoring loop interrupted");
> }
> {code}
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