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From Ted Yu <yuzhih...@gmail.com>
Subject Re: Switching to Java 7
Date Mon, 08 Dec 2014 00:58:28 GMT
Looking at the test failures of
https://builds.apache.org/job/Hadoop-Hdfs-trunk/1963/ which uses jdk 1.7:


java.lang.OutOfMemoryError: Java heap space
	at sun.nio.ch.EPollArrayWrapper.<init>(EPollArrayWrapper.java:120)
	at sun.nio.ch.EPollSelectorImpl.<init>(EPollSelectorImpl.java:68)
	at sun.nio.ch.EPollSelectorProvider.openSelector(EPollSelectorProvider.java:36)
	at io.netty.channel.nio.NioEventLoop.openSelector(NioEventLoop.java:126)
	at io.netty.channel.nio.NioEventLoop.<init>(NioEventLoop.java:120)
	at io.netty.channel.nio.NioEventLoopGroup.newChild(NioEventLoopGroup.java:87)
	at io.netty.util.concurrent.MultithreadEventExecutorGroup.<init>(MultithreadEventExecutorGroup.java:64)

Should more heap be given to the tests ?


On Sun, Dec 7, 2014 at 2:09 PM, Steve Loughran <stevel@hortonworks.com>

> The latest migration status:
>   if the jenkins builds are happy then the patch will go in -I do that
> monday morning 10:00 UTC
> https://builds.apache.org/view/H-L/view/Hadoop/
> Getting jenkins to work has been "surprisingly difficult"...it turns out
> that those builds which we thought were java7 or java8 weren't, as setting
>   export JAVA_HOME=${TOOLS_HOME}/java/latest
> meant that they picked up a java 6 machine
> Now the trunk precommit/postcommit and scheduled branches should have
> export JAVA_HOME=${TOOLS_HOME}/java/jdk1.7.0_55
> the Java 8 builds have more changes
> export JAVA_HOME=${TOOLS_HOME}/java/jdk1.8.0
> export MAVEN_OPTS="-Xmx3072m -XX:MaxPermSize=768m"
> and  -Dmaven.javadoc.skip=true  on the mvn builds
> without these javadocs fails and test runs OOM.
> We need to have something resembling the nightly build env setup again,
> git/Svn stored file with something for java8 alongside the normal env vars.
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