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https://issues.apache.org/jira/browse/YARN-7863?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16589075#comment-16589075
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Naganarasimha G R commented on YARN-7863:
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Hi [~sunilg],
Now i am confused when we have everything in one single expression .
* IIUC we can specify allocation tags, attribute expression and partition
label all in single expression ?
* If its the case then how are we going select the outstanding/ pending
requests for a given queue for a given partition, as there could be OR with
allocation tags or attribute expression right ? I think this issue should be
already existing when we have OR ing involved with allocation tags ?
* Based on the test cases in
TestPlacementConstraintParser.testParseNodeAttributeSpec, Allocation tags are
created even if we want to specify attribute expression ? ex :
"xyz,in,rm.yarn.io/foo=true" xyz is allocation tag ? If so users will be
really confused what to pass and what not !
* if i specify "IN" and have attribute expression as
"xyz,in,rm.yarn.io/foo{color:#d04437}*!=*{color}true" is it valid ? In future
when we come with more operators it would not make sense. I would suggest to go
with "," as separator.
I am not sure how many cases would be there where we want to specify all the
constraints in the same expression but we are making the users life complex
with having such a complex DSL.
> Modify placement constraints to support node attributes
> -------------------------------------------------------
>
> Key: YARN-7863
> URL: https://issues.apache.org/jira/browse/YARN-7863
> Project: Hadoop YARN
> Issue Type: Sub-task
> Reporter: Sunil Govindan
> Assignee: Sunil Govindan
> Priority: Major
> Attachments: YARN-7863-YARN-3409.002.patch,
> YARN-7863-YARN-3409.003.patch, YARN-7863-YARN-3409.004.patch,
> YARN-7863-YARN-3409.005.patch, YARN-7863-YARN-3409.006.patch,
> YARN-7863-YARN-3409.007.patch, YARN-7863-YARN-3409.008.patch,
> YARN-7863.v0.patch
>
>
> This Jira will track to *Modify existing placement constraints to support
> node attributes.*
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