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https://issues.apache.org/jira/browse/HADOOP-9902?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14105084#comment-14105084
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Jian He commented on HADOOP-9902:
---------------------------------
[~aw], thanks for rewriting the script. I tried a couple of yarn commands and
found a couple of issues.
1. yarn command usage info seems broken. e.g. "yarn application" command
earlier was printing command usage info. Now, it's throwing exception.
{code}
WARN util.NativeCodeLoader: Unable to load native-hadoop library for your
platform... using builtin-java classes where applicable
Invalid Command Usage :
Exception in thread "main" java.lang.IllegalArgumentException: cmdLineSyntax
not provided
at
org.apache.commons.cli.HelpFormatter.printHelp(HelpFormatter.java:472)
at
org.apache.commons.cli.HelpFormatter.printHelp(HelpFormatter.java:418)
at
org.apache.commons.cli.HelpFormatter.printHelp(HelpFormatter.java:334)
at
org.apache.hadoop.yarn.client.cli.ApplicationCLI.printUsage(ApplicationCLI.java:246)
at
org.apache.hadoop.yarn.client.cli.ApplicationCLI.run(ApplicationCLI.java:234)
at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:70)
at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:84)
at
org.apache.hadoop.yarn.client.cli.ApplicationCLI.main(ApplicationCLI.java:76)
{code}
2. Starting/stopping yarn daemon doesn't print anything any more. Earlier it
was printing something like "starting resource manager..", which I think is
useful.
Also, typically for changes big as such, we should open separate jiras in
YARN/MR to track YARN/MR side changes, so that it draws enough attention in
YARN/MR community as well.
> Shell script rewrite
> --------------------
>
> Key: HADOOP-9902
> URL: https://issues.apache.org/jira/browse/HADOOP-9902
> Project: Hadoop Common
> Issue Type: Improvement
> Components: scripts
> Affects Versions: 3.0.0
> Reporter: Allen Wittenauer
> Assignee: Allen Wittenauer
> Labels: releasenotes
> Fix For: 3.0.0
>
> Attachments: HADOOP-9902-10.patch, HADOOP-9902-11.patch,
> HADOOP-9902-12.patch, HADOOP-9902-13-branch-2.patch, HADOOP-9902-13.patch,
> HADOOP-9902-14.patch, HADOOP-9902-15.patch, HADOOP-9902-16.patch,
> HADOOP-9902-2.patch, HADOOP-9902-3.patch, HADOOP-9902-4.patch,
> HADOOP-9902-5.patch, HADOOP-9902-6.patch, HADOOP-9902-7.patch,
> HADOOP-9902-8.patch, HADOOP-9902-9.patch, HADOOP-9902.patch, HADOOP-9902.txt,
> hadoop-9902-1.patch, more-info.txt
>
>
> Umbrella JIRA for shell script rewrite. See more-info.txt for more details.
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