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Posted to yarn-issues@hadoop.apache.org by "Weiwei Yang (JIRA)" <ji...@apache.org> on 2018/04/08 03:52:00 UTC
[jira] [Comment Edited] (YARN-7142) Support placement policy in
yarn native services
[ https://issues.apache.org/jira/browse/YARN-7142?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16429610#comment-16429610 ]
Weiwei Yang edited comment on YARN-7142 at 4/8/18 3:51 AM:
-----------------------------------------------------------
Hi [~gsaha]/[~leftnoteasy]
Thanks for backing port this to branch-3.1. Not related to this task, I have a question about the format of placement policy in yaml file. It looks like it is more like an interpretation of how we specify placement constraints using Java API. I think we should be able to support a simple PC language, by specifying something like:
{code:java}
notin,node,foo
{code}
see more in [^Placement Constraint Expression Syntax Specification.pdf] in YARN-7921. I know this is only used distributed shell as a demo, but I think if we find this more easier to write, maybe we can use such expression here too? Just want to know your opinion.
Thanks
was (Author: cheersyang):
Hi [~gsaha]/[~leftnoteasy]
Thanks for backing port this to branch-3.1. Not related to this task, I have a question about the format of placement policy in yaml file. It looks like it is more like an interpretation of how we specify placement constraints using Java API. I think we should be able to support a simple PC language, by specifying something like:
{code:java}
notin,node,foo
{code}
see more in [this doc|https://issues.apache.org/jira/secure/attachment/12911872/Placement%20Constraint%20Expression%20Syntax%20Specification.pdf] YARN-7921. I know this is only used distributed shell as a demo, but I think if we find this more easier to write, maybe we can use such expression here too? Just want to know your opinion.
Thanks
> Support placement policy in yarn native services
> ------------------------------------------------
>
> Key: YARN-7142
> URL: https://issues.apache.org/jira/browse/YARN-7142
> Project: Hadoop YARN
> Issue Type: Sub-task
> Components: yarn-native-services
> Reporter: Billie Rinaldi
> Assignee: Gour Saha
> Priority: Major
> Fix For: 3.2.0
>
> Attachments: YARN-7142-branch-3.1.004.patch, YARN-7142.001.patch, YARN-7142.002.patch, YARN-7142.003.patch, YARN-7142.004.patch
>
>
> Placement policy exists in the API but is not implemented yet.
> I have filed YARN-8074 to move the composite constraints implementation out of this phase-1 implementation of placement policy.
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