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From "Matteo Mazzucchelli (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-2664) Improve RM webapp to expose info about reservations.
Date Thu, 23 Oct 2014 22:52:34 GMT

    [ https://issues.apache.org/jira/browse/YARN-2664?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14182112#comment-14182112
] 

Matteo Mazzucchelli commented on YARN-2664:
-------------------------------------------

I notice that the data that are sent to the html page are in a cvs format and that most of
them are zero. I think that the best way to handle these data would be to send only the important
(non-zero) values in a json.
{code:java}
[ 
    {
        "key": "reservation_1413792787395_0018",
        "values" : [{"date": "Mon Oct 24 10:13:37 CEST 2014", "value": 0},
                    {"date": "Mon Oct 24 10:14:18 CEST 2014", "value": 5}] 
    },
    ...
]
{code}
Therefore, only the timestamp and the value associated to it will be sent.

> Improve RM webapp to expose info about reservations.
> ----------------------------------------------------
>
>                 Key: YARN-2664
>                 URL: https://issues.apache.org/jira/browse/YARN-2664
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>          Components: resourcemanager
>            Reporter: Carlo Curino
>         Attachments: PlannerPage_screenshot.pdf, YARN-2664.patch
>
>
> YARN-1051 provides a new functionality in the RM to ask for reservation on resources.
Exposing this through the webapp GUI is important.



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