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https://issues.apache.org/jira/browse/YARN-7142?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16429610#comment-16429610
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Weiwei Yang edited comment on YARN-7142 at 4/8/18 3:51 AM:
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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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