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From "Sunil G (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-7237) Cleanup usages of ResourceProfiles
Date Thu, 05 Oct 2017 15:06:01 GMT

    [ https://issues.apache.org/jira/browse/YARN-7237?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16192986#comment-16192986
] 

Sunil G commented on YARN-7237:
-------------------------------

Thanks [~leftnoteasy]. Committing shortly.

> Cleanup usages of ResourceProfiles
> ----------------------------------
>
>                 Key: YARN-7237
>                 URL: https://issues.apache.org/jira/browse/YARN-7237
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>          Components: nodemanager, resourcemanager
>            Reporter: Wangda Tan
>            Assignee: Wangda Tan
>            Priority: Critical
>         Attachments: YARN-7237.001.patch, YARN-7237.002.patch, YARN-7237.003.patch, YARN-7237.004.patch,
YARN-7237.005.patch
>
>
> While doing tests, there're a couple of issues:
> 1) When use {{ProfileCapability#getProfileCapabilityOverride}}, it does overwrite of
whatever specified in resource-profiles.json when value >= 0. Which is different from javadocs
of {{ProfileCapability}} 
> bq. For example, if you have a resource profile "small" that maps to <4096M, 2 cores,
1 gpu> and you set the capability override to <8192M, 0 cores, 0 gpu>, then the actual
resource allocation on the ResourceManager will be <8192M, 2 cores, 1 gpu>
> To me, the correct behavior should do overwrite when value > 0. The reason is, by
default resource value will be set to 0, For example, assume we have a profile {{"a" = (mem=3,
vcore=5, res_1=7)}}, and create a capability-overwrite (capability = new resource(8). The
final result should be (mem=8, vcore=5, res_1=7), instead of (mem=8, vcore=0, res_1=0).
> 2) ResourceProfileManager now loads minimum/maximum profile from config file (resource-profiles.json),
to me this is not correct because minimum/maximum allocation for each resource types are already
specified inside {{resource-types.xml}}. We should always use {{ResourceUtils#getResourceTypesMinimum/MaximumAllocation}}
to get from resource-types.xml and yarn-site.xml. This value will be added to profiles so
client can get these configs.



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