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https://issues.apache.org/jira/browse/YARN-9923?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16996790#comment-16996790
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Szilard Nemeth commented on YARN-9923:
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[~adam.antal] I can see that affects version is 3.2.1
Do you want to backport this to 3.2?
> Introduce HealthReporter interface to support multiple health checker files
> ---------------------------------------------------------------------------
>
> Key: YARN-9923
> URL: https://issues.apache.org/jira/browse/YARN-9923
> Project: Hadoop YARN
> Issue Type: New Feature
> Components: nodemanager, yarn
> Affects Versions: 3.2.1
> Reporter: Adam Antal
> Assignee: Adam Antal
> Priority: Major
> Attachments: YARN-9923.001.patch, YARN-9923.002.patch,
> YARN-9923.003.patch, YARN-9923.004.patch, YARN-9923.005.patch,
> YARN-9923.006.patch, YARN-9923.007.patch, YARN-9923.008.patch,
> YARN-9923.009.patch, YARN-9923.010.patch
>
>
> Currently if a NodeManager is enabled to allocate Docker containers, but the
> specified binary (docker.binary in the container-executor.cfg) is missing the
> container allocation fails with the following error message:
> {noformat}
> Container launch fails
> Exit code: 29
> Exception message: Launch container failed
> Shell error output: sh: <docker binary path, /usr/bin/docker by default>: No
> such file or directory
> Could not inspect docker network to get type /usr/bin/docker network inspect
> host --format='{{.Driver}}'.
> Error constructing docker command, docker error code=-1, error
> message='Unknown error'
> {noformat}
> I suggest to add a property say "yarn.nodemanager.runtime.linux.docker.check"
> to have the following options:
> - STARTUP: setting this option the NodeManager would not start if Docker
> binaries are missing or the Docker daemon is not running (the exception is
> considered FATAL during startup)
> - RUNTIME: would give a more detailed/user-friendly exception in
> NodeManager's side (NM logs) if Docker binaries are missing or the daemon is
> not working. This would also prevent further Docker container allocation as
> long as the binaries do not exist and the docker daemon is not running.
> - NONE (default): preserving the current behaviour, throwing exception during
> container allocation, carrying on using the default retry procedure.
> ------------------------------------------------------------------------------------------------
> A new interface called {{HealthChecker}} is introduced which is used in the
> {{NodeHealthCheckerService}}. Currently existing implementations like
> {{LocalDirsHandlerService}} are modified to implement this giving a clear
> abstraction to the node's health. The {{DockerHealthChecker}} implements this
> new interface.
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