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Date: Sat, 15 Sep 2012 06:08:07 +1100 (NCT)
From: "Hadoop QA (JIRA)" <jira@apache.org>
To: common-issues@hadoop.apache.org
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Subject: [jira] [Commented] (HADOOP-8810) when building with documentation
 build stops waiting for ENTER on terminal
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    [ https://issues.apache.org/jira/browse/HADOOP-8810?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13456041#comment-13456041 ] 

Hadoop QA commented on HADOOP-8810:
-----------------------------------

-1 overall.  Here are the results of testing the latest attachment 
  http://issues.apache.org/jira/secure/attachment/12545196/HADOOP-8810.patch
  against trunk revision .

    +1 @author.  The patch does not contain any @author tags.

    -1 tests included.  The patch doesn't appear to include any new or modified tests.
                        Please justify why no new tests are needed for this patch.
                        Also please list what manual steps were performed to verify this patch.

    -1 javac.  The patch appears to cause the build to fail.

Console output: https://builds.apache.org/job/PreCommit-HADOOP-Build/1460//console

This message is automatically generated.
                
> when building with documentation build stops waiting for ENTER on terminal
> --------------------------------------------------------------------------
>
>                 Key: HADOOP-8810
>                 URL: https://issues.apache.org/jira/browse/HADOOP-8810
>             Project: Hadoop Common
>          Issue Type: Improvement
>          Components: build
>    Affects Versions: 2.0.3-alpha
>            Reporter: Alejandro Abdelnur
>            Assignee: Alejandro Abdelnur
>             Fix For: 2.0.3-alpha
>
>         Attachments: HADOOP-8810.patch
>
>
> When building the docs {{mvn clean package -Pdocs -DskipTests site site:stage -DstagingDirectory=/tmp/hadoop-site}}, in OSX (and I've seen it a few times in Ubuntu as well), the build stops, if you press ENTER it continues. It happens twice.
> I've traced this down to the exec-maven-plugin invocation of protoc for hadoop-yarn-api module (and other YARN module I don't recall at the moment).
> jstacking the Maven process it seems the exec-maven-plugin has some locking issues consuming the STDOUT/STDERR of the process being executed.
> I've converted the protoc invocation in the hadoop-yarn-api to use the antrun plugin instead and then another module running protoc using exec-maven-puglin hang.

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