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From "Konstantinos Karanasos (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-5468) Scheduling of long-running applications
Date Wed, 03 Aug 2016 01:30:20 GMT

    [ https://issues.apache.org/jira/browse/YARN-5468?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15405142#comment-15405142

Konstantinos Karanasos commented on YARN-5468:

Thanks for the comment, [~cheersyang]. Yes, I have read YARN-4902.
It is definitely related, but in this JIRA we are focusing in particular on the scheduling
of long running jobs/services.
In that sense, YARN-4902 is more general. On the other hand, unlike YARN-4902, we will be
providing the option of service planning, that is, we will be able to look at multiple services
at once and plan their execution in a more holistic manner than the scheduler can do (given
that the scheduler looks at one resource request at a time). This can be seen as related to
the planning phase of YARN-1051.

> Scheduling of long-running applications
> ---------------------------------------
>                 Key: YARN-5468
>                 URL: https://issues.apache.org/jira/browse/YARN-5468
>             Project: Hadoop YARN
>          Issue Type: New Feature
>          Components: capacityscheduler, fairscheduler
>            Reporter: Konstantinos Karanasos
>            Assignee: Konstantinos Karanasos
>         Attachments: YARN-5468.prototype.patch
> This JIRA is about the scheduling of applications with long-running tasks.
> It will include adding support to the YARN for a richer set of scheduling constraints
(such as affinity, anti-affinity, cardinality and time constraints), and extending the schedulers
to take them into account during placement of containers to nodes.
> We plan to have both an online version that will accommodate such requests as they arrive,
as well as a Long-running Application Planner that will make more global decisions by considering
multiple applications at once.

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