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From "Eric Payne (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (YARN-415) Capture aggregate memory allocation at the app-level for chargeback
Date Thu, 21 Aug 2014 23:10:15 GMT

     [ https://issues.apache.org/jira/browse/YARN-415?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Eric Payne updated YARN-415:
----------------------------

    Attachment: YARN-415.201408212033.txt

[~kkambatl], Thanks for your help in reviewing this.

{quote}
A more minor comment: Can we rename ResourceUtilization to AggregateAppResourceUsage for clarity?
{quote}
{quote}
Can we update the title and the corresponding class/field names accordingly? Also, the values
are accumulated for the duration of the app. Can we add aggregate in the required class/field
names? 
{quote}

With this patch, I changed the names of the {{ResourceUtilization}} class to {{AggregateAppResourceUsage}},
and modified appropriate fields, variable names, and method names.

[~jianhe], I appreciate the time you have put in on helping me review this patch and your
comments.
{quote}
we may need a test to test RMAppAttempt metrics is updated when container is finished also
? i.e. to test the code change in RMContainerFinished transition.
{quote}
Doesn't this transition get tested when the container metrics are summed and compared to the
output of RMAppImpl#getRMAppMetrics? For example, as in TestContainerResourceUsage#testUsageWithMultipleContainersAndRMRestart,
and in some of the other tests in TestContainerResourceUsage, each container's resources are
accessed and summed. Then, when RMAppImpl#getRMAppMetrics is called, it takes the total resource
allocation for each attempt, and sums those. Then the 2 are compared. Perhaps there needs
to be an additional Assert to make sure these are never 0, but other than that, I think these
2 calculations are arrived at independently. Is that testing what you suggested?

> Capture aggregate memory allocation at the app-level for chargeback
> -------------------------------------------------------------------
>
>                 Key: YARN-415
>                 URL: https://issues.apache.org/jira/browse/YARN-415
>             Project: Hadoop YARN
>          Issue Type: New Feature
>          Components: resourcemanager
>    Affects Versions: 2.5.0
>            Reporter: Kendall Thrapp
>            Assignee: Andrey Klochkov
>         Attachments: YARN-415--n10.patch, YARN-415--n2.patch, YARN-415--n3.patch, YARN-415--n4.patch,
YARN-415--n5.patch, YARN-415--n6.patch, YARN-415--n7.patch, YARN-415--n8.patch, YARN-415--n9.patch,
YARN-415.201405311749.txt, YARN-415.201406031616.txt, YARN-415.201406262136.txt, YARN-415.201407042037.txt,
YARN-415.201407071542.txt, YARN-415.201407171553.txt, YARN-415.201407172144.txt, YARN-415.201407232237.txt,
YARN-415.201407242148.txt, YARN-415.201407281816.txt, YARN-415.201408062232.txt, YARN-415.201408080204.txt,
YARN-415.201408092006.txt, YARN-415.201408132109.txt, YARN-415.201408150030.txt, YARN-415.201408181938.txt,
YARN-415.201408181938.txt, YARN-415.201408212033.txt, YARN-415.patch
>
>
> For the purpose of chargeback, I'd like to be able to compute the cost of an
> application in terms of cluster resource usage.  To start out, I'd like to get the memory
utilization of an application.  The unit should be MB-seconds or something similar and, from
a chargeback perspective, the memory amount should be the memory reserved for the application,
as even if the app didn't use all that memory, no one else was able to use it.
> (reserved ram for container 1 * lifetime of container 1) + (reserved ram for
> container 2 * lifetime of container 2) + ... + (reserved ram for container n * lifetime
of container n)
> It'd be nice to have this at the app level instead of the job level because:
> 1. We'd still be able to get memory usage for jobs that crashed (and wouldn't appear
on the job history server).
> 2. We'd be able to get memory usage for future non-MR jobs (e.g. Storm).
> This new metric should be available both through the RM UI and RM Web Services REST API.



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