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https://issues.apache.org/jira/browse/YARN-6616?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16751829#comment-16751829
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Prabhu Joseph commented on YARN-6616:
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Thanks [~eepayne] for the review. The submitTime is different from launchTime.
submitTime is the time the job is submitted to RM whereas the launchTime is the
time first attempt (AM) is launched.
{code}
1. SubmitTime is the time submitApplication is received by RM (ClientRMService)
from YarnClient.
ClientRMService sets submitTime to the system time.
// call RMAppManager to submit application directly
rmAppManager.submitApplication(submissionContext,
System.currentTimeMillis(), user);
2. StartTime is the time set by RMAppImpl after ClientRMService validates with
queue SUBMIT_APPLICATIONS. RMAppImpl sets startTime to the system time.
if (startTime <= 0) {
this.startTime = this.systemClock.getTime();
3. LaunchTime is the time set when AM is Launched and the first attempt is
launched. RMAppImpl sets it with event timestamp when AttemptLaunchedTransition.
app.launchTime = event.getTimestamp();
{code}
submitTime <= startTime <= launchTime <= finishTime
> YARN AHS shows submitTime for jobs same as startTime
> ----------------------------------------------------
>
> Key: YARN-6616
> URL: https://issues.apache.org/jira/browse/YARN-6616
> Project: Hadoop YARN
> Issue Type: Bug
> Affects Versions: 2.7.3
> Reporter: Prabhu Joseph
> Assignee: Prabhu Joseph
> Priority: Minor
> Attachments: 0001-YARN-6616.patch, 0002-YARN-6616.patch,
> 0003-YARN-6616.patch, 0004-YARN-6616.patch, 0005-YARN-6616.patch,
> 0006-YARN-6616.patch, 0007-YARN-6616.patch, 0008-YARN-6616.patch,
> ApplicationReport.poc
>
>
> YARN AHS returns startTime value for both submitTime and startTime for the
> jobs. Looks the code sets the submitTime with startTime value.
> https://github.com/apache/hadoop/blob/branch-2.7.3/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-common/src/main/java/org/apache/hadoop/yarn/server/webapp/dao/AppInfo.java#L80
> {code}
> curl --negotiate -u:
> http://prabhuzeppelin3.openstacklocal:8188/ws/v1/applicationhistory/apps
> <submittedTime>1495015537574</submittedTime><startedTime>1495015537574</startedTime><finishedTime>1495016384084</finishedTime>
> {code}
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