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https://issues.apache.org/jira/browse/YARN-3484?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14534877#comment-14534877
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Allen Wittenauer commented on YARN-3484:
----------------------------------------
* Some shellcheck errors:
{code}
hadoop-yarn-project/hadoop-yarn/bin/yarn:65:13: warning: Declare and assign
separately to avoid masking return values. [SC2155]
hadoop-yarn-project/hadoop-yarn/bin/yarn:72:13: warning: Declare and assign
separately to avoid masking return values. [SC2155]
{code}
* If the RM isn't up, we throw an exception.
* tput stderr needs to be /dev/null'd
> Fix up yarn top shell code
> --------------------------
>
> Key: YARN-3484
> URL: https://issues.apache.org/jira/browse/YARN-3484
> Project: Hadoop YARN
> Issue Type: Bug
> Components: scripts
> Affects Versions: 3.0.0
> Reporter: Allen Wittenauer
> Assignee: Varun Vasudev
> Labels: BB2015-05-TBR, newbie
> Attachments: YARN-3484.001.patch, YARN-3484.002.patch
>
>
> We need to do some work on yarn top's shell code.
> a) Just checking for TERM isn't good enough. We really need to check the
> return on tput, especially since the output will not be a number but an error
> string which will likely blow up the java code in horrible ways.
> b) All the single bracket tests should be double brackets to force the bash
> built-in.
> c) I'd think I'd rather see the shell portion in a function since it's rather
> large. This will allow for args, etc, to get local'ized and clean up the
> case statement.
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