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https://issues.apache.org/jira/browse/YARN-727?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13689824#comment-13689824
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Xuan Gong commented on YARN-727:
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bq.appType_opt.setArgs(Option.UNLIMITED_VALUES); Is there a reason to set this?
What happens if this is not set?
This function sets the number of args which the option can have. The default
value is 1, that means the option can only have one arg.
In our case, if we type yarn application -list -appTypes YARN,MAPREDUCE, when
we call cliParser.getOptionValues("appTypes"), we will get an array which
contains one value: {YARN,MAPREDUCE} back. But what we expect is an array which
contains two values {YARN} and {MAPREDUCE}.
Also, we do not know how many appTypes we will give in one command, so
Option.UNLIMITED_VALUES is used here. It means that we can type as many
appTypes as possible in one command and it will parse all of them.
> ClientRMProtocol.getAllApplications should accept ApplicationType as a
> parameter
> --------------------------------------------------------------------------------
>
> Key: YARN-727
> URL: https://issues.apache.org/jira/browse/YARN-727
> Project: Hadoop YARN
> Issue Type: Sub-task
> Affects Versions: 2.1.0-beta
> Reporter: Siddharth Seth
> Assignee: Xuan Gong
> Attachments: YARN-727.10.patch, YARN-727.11.patch, YARN-727.12.patch,
> YARN-727.13.patch, YARN-727.14.patch, YARN-727.15.patch, YARN-727.1.patch,
> YARN-727.2.patch, YARN-727.3.patch, YARN-727.4.patch, YARN-727.5.patch,
> YARN-727.6.patch, YARN-727.7.patch, YARN-727.8.patch, YARN-727.9.patch
>
>
> Now that an ApplicationType is registered on ApplicationSubmission,
> getAllApplications should be able to use this string to query for a specific
> application type.
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