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https://issues.apache.org/jira/browse/YARN-2837?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14205768#comment-14205768
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Zhijie Shen commented on YARN-2837:
-----------------------------------
Test the patch on a single node secure cluster:
1. Start and restart the timeline server, and the DT information is recovered
properly.
2. The DT generated in before the timeline server can be renewed properly
afterwards.
Some other issues I've observed while doing test:
At the very early seconds the http server is started, the MR job, which tries
to emit the timeline data, gets a number of 404 error. I guess the server is
not fully ready before it taking the incoming requests.
> Timeline server needs to recover the timeline DT when restarting
> ----------------------------------------------------------------
>
> Key: YARN-2837
> URL: https://issues.apache.org/jira/browse/YARN-2837
> Project: Hadoop YARN
> Issue Type: New Feature
> Components: timelineserver
> Reporter: Zhijie Shen
> Assignee: Zhijie Shen
> Priority: Blocker
> Attachments: YARN-2837.1.patch
>
>
> Timeline server needs to recover the stateful information when restarting as
> RM/NM/JHS does now. So far the stateful information only includes the
> timeline DT. Without recovery, the timeline DT of the existing YARN apps is
> not long valid, and cannot be renewed any more after the timeline server is
> restarted.
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