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https://issues.apache.org/jira/browse/YARN-2868?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14292798#comment-14292798
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Jian He commented on YARN-2868:
-------------------------------
>From what I understand, both YARN-2802 and this jira are trying to capture the
>time interval among these states.
{code}
SCHEDULED,
ALLOCATED,
LAUNCHED,
RUNNING
{code}
YARN-2802 addresses last three states, and this jira is trying to capture the
time interval between first two. If possible, I think we should make both
implementations consistent.
Even, we may consider a generic solution to capture the time interval between
state-transitions.
> Add metric for initial container launch time to FairScheduler
> -------------------------------------------------------------
>
> Key: YARN-2868
> URL: https://issues.apache.org/jira/browse/YARN-2868
> Project: Hadoop YARN
> Issue Type: Improvement
> Reporter: Ray Chiang
> Assignee: Ray Chiang
> Labels: metrics, supportability
> Attachments: YARN-2868-01.patch, YARN-2868.002.patch,
> YARN-2868.003.patch, YARN-2868.004.patch, YARN-2868.005.patch,
> YARN-2868.006.patch, YARN-2868.007.patch
>
>
> Add a metric to measure the latency between "starting container allocation"
> and "first container actually allocated".
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