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Date: Sat, 15 Sep 2012 05:34:07 +1100 (NCT)
From: "Alejandro Abdelnur (JIRA)" <jira@apache.org>
To: common-issues@hadoop.apache.org
Message-ID: <206581891.81592.1347647647437.JavaMail.jiratomcat@arcas>
Subject: [jira] [Created] (HADOOP-8810) when building with documentation
 build stops waiting for ENTER on terminal
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Alejandro Abdelnur created HADOOP-8810:
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             Summary: 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


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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