hadoop-yarn-issues mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Vinod Kumar Vavilapalli (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-1197) Support changing resources of an allocated container
Date Tue, 16 Jun 2015 23:00:17 GMT

    [ https://issues.apache.org/jira/browse/YARN-1197?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14588965#comment-14588965
] 

Vinod Kumar Vavilapalli commented on YARN-1197:
-----------------------------------------------

bq. I don't think it's possible for the AM to start using the additional allocation till the
NM has updated all it's state - including writing out recovery information for work preserving
restart (Thanks Vinod for pointing this out). Seems like that poll/callback will be required
- unless the plan is to route this information via the RM.
We could just use the existing getContainerStatus() API for doing this polling for now.

> Support changing resources of an allocated container
> ----------------------------------------------------
>
>                 Key: YARN-1197
>                 URL: https://issues.apache.org/jira/browse/YARN-1197
>             Project: Hadoop YARN
>          Issue Type: Task
>          Components: api, nodemanager, resourcemanager
>    Affects Versions: 2.1.0-beta
>            Reporter: Wangda Tan
>         Attachments: YARN-1197 old-design-docs-patches-for-reference.zip, YARN-1197_Design.pdf
>
>
> The current YARN resource management logic assumes resource allocated to a container
is fixed during the lifetime of it. When users want to change a resource 
> of an allocated container the only way is releasing it and allocating a new container
with expected size.
> Allowing run-time changing resources of an allocated container will give us better control
of resource usage in application side



--
This message was sent by Atlassian JIRA
(v6.3.4#6332)

Mime
View raw message