HADOOP-7261. Disable IPV6 for junit tests. Contributed by Suresh Srinivas.

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1100278 13f79535-47bb-0310-9956-ffa450edef68

CHANGES.txt

@@ -174,6 +174,8 @@ Trunk (unreleased changes)
 
     HADOOP-7231. Fix synopsis for -count. (Daryn Sharp via eli).
 
+    HADOOP-7261. Disable IPV6 for junit tests. (suresh)
+
 Release 0.22.0 - Unreleased
 
   INCOMPATIBLE CHANGES

build.xml

@@ -742,6 +742,7 @@
              errorProperty="tests.failed"
              failureProperty="tests.failed">
         <jvmarg value="-ea" />
+        <sysproperty key="java.net.preferIPv4Stack" value="true"/>
         <sysproperty key="test.build.data" value="${test.build.data}" />
         <sysproperty key="test.cache.data" value="${test.cache.data}" />
         <sysproperty key="test.debug.data" value="${test.debug.data}" />

src/contrib/build-contrib.xml

@@ -232,7 +232,7 @@
         classpath to use build/contrib/*.jar
       -->
       <sysproperty key="user.dir" value="${build.test}/data"/>
-      
+      <sysproperty key="java.net.preferIPv4Stack" value="true"/>
       <sysproperty key="fs.default.name" value="${fs.default.name}"/>
       <sysproperty key="hadoop.test.localoutputfile" value="${hadoop.test.localoutputfile}"/>
       <sysproperty key="hadoop.log.dir" value="${hadoop.log.dir}"/>