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Yarn apps in ApplicationTimelineServer always have the same submit and start time?

Yarn apps in ApplicationTimelineServer always have the same submit and start time?

Contributor

Hello,

I was going to collect metrics on the waiting times for YARN applications and tried to pull this data from the ATS Rest API.

Then I noticed that the waiting time (defined as start time-submit time) was always zero which didn't seem to match what I knew from our cluster. When I looked more it really seems like these times are always the same.

My question is: Is this a bug or am I missing something?

The corresponding fields when pulled from the MapReduce JobHistoryServer seems more correct, with submit time being lesser than the start time.

We are running HDP 2.4.3 which has YARN 2.7.1.

Best Regards

/Thomas

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Re: Yarn apps in ApplicationTimelineServer always have the same submit and start time?

Mentor

My recommendation is to double-check your ATS settings, I've come across many cases where ATS is misconfigured going from version 1.0 in HDP 2.2 to HDP 2.3+. http://docs.hortonworks.com/HDPDocuments/HDP2/HDP-2.4.3/bk_yarn_resource_mgt/content/ch_timeline_ser...