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From "Sunil Govindan (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-8881) Phase 1 - Add basic pluggable device plugin framework
Date Tue, 13 Nov 2018 14:02:01 GMT

    [ https://issues.apache.org/jira/browse/YARN-8881?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16685247#comment-16685247

Sunil Govindan commented on YARN-8881:

Thanks [~tangzhankun]

Few comments
 # In Device class, any reason why using Boxed type Integer. It may be better to use int
 # DevicePlugin is placed in hadoop-yarn-server-nodemanager package. Is that correct?
 # DevicePlugin: do we need validation interface api to ensure basic sanity is done during
 # Why DeviceRegisterRequest need to serializable?
 # who will really invoke adapter.getNodeResourceHandlerInstance() ?
 # DevicePluginAdapter cleanup is missing? Does it need to be handled by ResourcePluginManager?
 # In below case, do we need to throw exception?

if (pluginMap.containsKey(resourceName)) {

         throw new YarnRuntimeException(resourceName

            + " already registered! Please change resource type name"); 162      


> Phase 1 - Add basic pluggable device plugin framework
> -----------------------------------------------------
>                 Key: YARN-8881
>                 URL: https://issues.apache.org/jira/browse/YARN-8881
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>            Reporter: Zhankun Tang
>            Assignee: Zhankun Tang
>            Priority: Major
>         Attachments: YARN-8881-trunk.001.patch, YARN-8881-trunk.002.patch, YARN-8881-trunk.003.patch,
YARN-8881-trunk.004.patch, YARN-8881-trunk.005.patch, YARN-8881-trunk.006.patch, YARN-8881-trunk.007.patch,
> It includes adding support in "ResourcePluginManager" to load plugin classes based on
configuration, an interface for the vendor to implement and the adapter to decouple plugin
and YARN internals. And the vendor device resource discovery will be ready after this support

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