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https://issues.apache.org/jira/browse/YARN-6593?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16109921#comment-16109921
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Arun Suresh edited comment on YARN-6593 at 8/1/17 10:38 PM:
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bq. Actually, my comments should apply to YARN-6594 rather this jira.
[~jianhe], I am guessing you are referring to the *AllocationTags* .. then yes,
we should continue that discussion in YARN-6594, since this pertains just to
the *PlacementConstraint* object. (Can you please cross-post it there as well
?)
My opinion though is that the allocation tags should remain a list of string
keys. I understand having it as a map might offload some work from the AM, but
do you see it helping the RM/scheduler in making a scheduling decision ? If it
is just to select a bunch of containers, one can still perform a search like:
select containers where allocationtags contains "env=test" etc. Forcing the
tags to be a map might even make the querying more complicated.
was (Author: asuresh):
bq. Actually, my comments should apply to YARN-6594 rather this jira.
[~jianhe], I am guessing you are referring to the *AllocationTags* .. then yes,
we should continue that discussion in YARN-6594, since this pertains just to
the *PlacementConstraint* object. (Can you please cross-post it there as well
?)
My opinion though is that the allocation tags should remain a list of string
keys. I understand this might offload some work from the AM, but do you see it
helping the RM/scheduler in making a scheduling decision ? If it is just to
select a bunch of containers, one can still perform a search like: select
containers where allocationtags contains "env=test" etc. Forcing the tags to be
a map might even make the querying more complicated.
> [API] Introduce Placement Constraint object
> -------------------------------------------
>
> Key: YARN-6593
> URL: https://issues.apache.org/jira/browse/YARN-6593
> Project: Hadoop YARN
> Issue Type: Sub-task
> Reporter: Konstantinos Karanasos
> Assignee: Konstantinos Karanasos
> Attachments: YARN-6593.001.patch, YARN-6593.002.patch,
> YARN-6593.003.patch, YARN-6593.004.patch, YARN-6593.005.patch,
> YARN-6593.006.patch, YARN-6593.007.patch, YARN-6593.008.patch
>
>
> Just removed Fixed version and moved it to target version as we set fix
> version only after patch is committed.
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