Lin Yiqun updated YARN-4396:
    Attachment: YARN-4396.002.patch

Modify some debug infos.

> Log the trance information on FSAppAttempt#assignContainer
> ----------------------------------------------------------
>                 Key: YARN-4396
>                 URL: https://issues.apache.org/jira/browse/YARN-4396
>             Project: Hadoop YARN
>          Issue Type: Improvement
>          Components: applications, scheduler
>    Affects Versions: 2.7.1
>            Reporter: Lin Yiqun
>            Assignee: Lin Yiqun
>         Attachments: YARN-4396.001.patch, YARN-4396.002.patch
> When I configure the yarn.scheduler.fair.locality.threshold.node and 
> yarn.scheduler.fair.locality.threshold.rack to open this function, I have no 
> detail info of assigning container's locality. And it's important because it 
> will lead some delay scheduling and will have an influence on my cluster. If 
> I know these info, I can adjust param in cluster.

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