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From "Sangjin Lee (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-3437) convert load test driver to timeline service v.2
Date Thu, 23 Apr 2015 15:49:40 GMT

    [ https://issues.apache.org/jira/browse/YARN-3437?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14509237#comment-14509237
] 

Sangjin Lee commented on YARN-3437:
-----------------------------------

Thanks Junping. I initially went with ConcurrentHashMap when I first created this as that
is my preference as well. But it was really preventing multiple threads from starting their
collector (should that situation arise) that made ConcurrentHashMap not an option. Again,
if we want both, we would need to look at the LoadingCache. But since this is really a low
contention situation, it would be an overkill. The chances of this code running into a lock
contention should be low.

> convert load test driver to timeline service v.2
> ------------------------------------------------
>
>                 Key: YARN-3437
>                 URL: https://issues.apache.org/jira/browse/YARN-3437
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>          Components: timelineserver
>            Reporter: Sangjin Lee
>            Assignee: Sangjin Lee
>         Attachments: YARN-3437.001.patch, YARN-3437.002.patch, YARN-3437.003.patch, YARN-3437.004.patch
>
>
> This subtask covers the work for converting the proposed patch for the load test driver
(YARN-2556) to work with the timeline service v.2.



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