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https://issues.apache.org/jira/browse/YARN-11078?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Gautham Banasandra resolved YARN-11078.
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Resolution: Fixed
Merged PR https://github.com/apache/hadoop/pull/4432 to trunk.
> Set env vars in a cross platform compatible way
> -----------------------------------------------
>
> Key: YARN-11078
> URL: https://issues.apache.org/jira/browse/YARN-11078
> Project: Hadoop YARN
> Issue Type: Improvement
> Components: webapp
> Affects Versions: 3.4.0
> Reporter: Gautham Banasandra
> Assignee: Gautham Banasandra
> Priority: Major
> Labels: pull-request-available
> Time Spent: 40m
> Remaining Estimate: 0h
>
> Prior to running a node.js command, a *TMPDIR* environment variable is set -
> [hadoop/package.json at 11d144d2284be29da1f49e163db0763636dcf058 ยท
> apache/hadoop
> (github.com)|https://github.com/apache/hadoop/blob/11d144d2284be29da1f49e163db0763636dcf058/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-ui/src/main/webapp/package.json#L11-L13]
> {code:json}
> "build:mvn": "TMPDIR=tmp node/node ./node_modules/ember-cli/bin/ember build
> -prod"
> {code}
> This causes the command execution to fail on Windows since environment
> variables are set using the *set* command on Windows. The equivalent command
> on Windows would be -
> {code:json}
> "build:mvn": "set TMPDIR=tmp; node/node ./node_modules/ember-cli/bin/ember
> build -prod"
> {code}
> There's no cross platform way to set the environment variables. Thus, we need
> to be able to chose either of the commands based on the platform where Hadoop
> gets built on.
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