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https://issues.apache.org/jira/browse/YARN-9033?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Zhankun Tang updated YARN-9033:
-------------------------------
    Description: 
The ResourceHandlerChain#bootstrap will always be invoked in NM's 
ContainerScheduler#serviceInit (Involved by YARN-7715)

So if LCE is enabled, the ResourceHandlerChain#bootstrap will be invoked first 
and then invoked again in ContainerScheduler#serviceInit.

But in the other hand, the "updateContainer" invocation in YARN-7715 depend on 
containerId's cgroups path creation in "preStart" method which only happens 
when we use "LinuxContainerExecutor". So the bootstrap of ResourceHandlerChain 
shouldn't happen in ContainerScheduler#serviceInit.

  was:
The ResourceHandlerChain#bootstrap will always be invoked in NM's 
ContainerScheduler#serviceInit (Involved by YARN-7715)

So if LCE is enabled, the ResourceHandlerChain#bootstrap will be invoked first 
and then invoked again in ContainerScheduler#serviceInit.

But in the other hand, the "updateContainer" invocation in YARN-7715 depend on 
containerId's cgroups path creation in "preStart" method which only happens 
when we use "LinuxContainerExecutor". So the bootstrap of ResourceHandlerChain 
shoudn't happen in ContainerScheduler#serviceInit.


> ResourceHandlerChain#bootstrap is invoked twice during NM start if 
> LinuxContainerExecutor enabled
> -------------------------------------------------------------------------------------------------
>
>                 Key: YARN-9033
>                 URL: https://issues.apache.org/jira/browse/YARN-9033
>             Project: Hadoop YARN
>          Issue Type: Bug
>          Components: yarn
>            Reporter: Zhankun Tang
>            Assignee: Zhankun Tang
>            Priority: Major
>
> The ResourceHandlerChain#bootstrap will always be invoked in NM's 
> ContainerScheduler#serviceInit (Involved by YARN-7715)
> So if LCE is enabled, the ResourceHandlerChain#bootstrap will be invoked 
> first and then invoked again in ContainerScheduler#serviceInit.
> But in the other hand, the "updateContainer" invocation in YARN-7715 depend 
> on containerId's cgroups path creation in "preStart" method which only 
> happens when we use "LinuxContainerExecutor". So the bootstrap of 
> ResourceHandlerChain shouldn't happen in ContainerScheduler#serviceInit.



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