[jira] [Created] (YARN-5219) When an export var command fails in launch_container.sh, the full container launch should fail

["Hitesh Shah (JIRA)" <ji...@apache.org>]

Hitesh Shah created YARN-5219:
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             Summary: When an export var command fails in launch_container.sh, the full container launch should fail
                 Key: YARN-5219
                 URL: https://issues.apache.org/jira/browse/YARN-5219
             Project: Hadoop YARN
          Issue Type: Bug
            Reporter: Hitesh Shah


Today, a container fails if certain files fail to localize. However, if certain env vars fail to get setup properly either due to bugs in the yarn application or misconfiguration, the actual process launch still gets triggered. This results in either confusing error messages if the process fails to launch or worse yet the process launches but then starts behaving wrongly if the env var is used to control some behavioral aspects. 

In this scenario, the issue was reproduced by trying to do export abc="${foo.bar}" which is invalid as var names cannot contain "." in bash. 



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