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https://issues.apache.org/jira/browse/YARN-10593?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17280350#comment-17280350
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Qi Zhu commented on YARN-10593:
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[~pbacsko]
May i take this? I can help to fix.
> Fix incorrect string comparison in GpuDiscoverer
> ------------------------------------------------
>
> Key: YARN-10593
> URL: https://issues.apache.org/jira/browse/YARN-10593
> Project: Hadoop YARN
> Issue Type: Bug
> Components: resourcemanager
> Reporter: Peter Bacsko
> Assignee: Peter Bacsko
> Priority: Major
>
> The following comparison in {{GpuDiscoverer}} is invalid:
> {noformat}
> binaryPath = configuredBinaryFile;
> // If path exists but file name is incorrect don't execute the file
> String fileName = binaryPath.getName();
> if (DEFAULT_BINARY_NAME.equals(fileName)) { <--- inverse condition
> needed
> String msg = String.format("Please check the configuration value of"
> +" %s. It should point to an %s binary.",
> YarnConfiguration.NM_GPU_PATH_TO_EXEC,
> DEFAULT_BINARY_NAME);
> throwIfNecessary(new YarnException(msg), config);
> LOG.warn(msg);
> }{noformat}
> Obviously it should be other way around - we should log a warning or throw an
> exception if the file names *differ*, not when they're equal.
> Consider adding a unit test for this.
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