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From "Hudson (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HADOOP-9660) [WINDOWS] Powershell / cmd parses -Dkey=value from command line as [-Dkey, value] which breaks GenericsOptionParser
Date Tue, 02 Jul 2013 22:36:22 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-9660?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13698339#comment-13698339
] 

Hudson commented on HADOOP-9660:
--------------------------------

Integrated in Hadoop-trunk-Commit #4034 (See [https://builds.apache.org/job/Hadoop-trunk-Commit/4034/])
    HADOOP-9660 [WINDOWS] Powershell / cmd parses -Dkey=value from command line as [-Dkey,
value] which breaks GenericsOptionParser (enis) (Revision 1499132)

     Result = SUCCESS
enis : http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1499132
Files : 
* /hadoop/common/trunk/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/util/GenericOptionsParser.java
* /hadoop/common/trunk/hadoop-common-project/hadoop-common/src/test/java/org/apache/hadoop/util/TestGenericOptionsParser.java

                
> [WINDOWS] Powershell / cmd parses -Dkey=value from command line as [-Dkey, value] which
breaks GenericsOptionParser
> -------------------------------------------------------------------------------------------------------------------
>
>                 Key: HADOOP-9660
>                 URL: https://issues.apache.org/jira/browse/HADOOP-9660
>             Project: Hadoop Common
>          Issue Type: Bug
>          Components: scripts, util
>            Reporter: Enis Soztutar
>            Assignee: Enis Soztutar
>             Fix For: 3.0.0, 2.1.0-beta
>
>         Attachments: hadoop-9660-branch1_v1.patch, hadoop-9660-branch1_v2.patch, hadoop-9660-branch1_v3.patch,
hadoop-9660-branch2_v1.patch, hadoop-9660-branch2_v2.patch, hadoop-9660-branch2_v3.patch
>
>
> When parsing parameters to a class implementing Tool, and using ToolRunner, we can pass

> {code}
> bin/hadoop <tool_class> -Dkey=value 
> {code}
> However, powershell parses the '=' sign itself, and sends it to  java as ["-Dkey", "value"]
which breaks GenericOptionsParser. 
> Using "-Dkey=value" or '-Dkey=value' does not fix the problem. The only workaround seems
to trick PS by using: 
> '"-Dkey=value"' (single + double quote)
> In cmd, "-Dkey=value" works, but not '"-Dkey=value"'. 
> http://stackoverflow.com/questions/4940375/how-do-i-pass-an-equal-sign-when-calling-a-batch-script-in-powershell

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