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Subject: Re: Switching to Java 7
From: Ted Yu <yuzhihong@gmail.com>
To: "common-dev@hadoop.apache.org" <common-dev@hadoop.apache.org>
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Looks like there was still OutOfMemoryError :

https://builds.apache.org/job/Hadoop-Hdfs-trunk/1964/testReport/junit/org.apache.hadoop.hdfs.server.namenode.snapshot/TestRenameWithSnapshots/testRenameDirAcrossSnapshottableDirs/

FYI

On Mon, Dec 8, 2014 at 2:42 AM, Steve Loughran <stevel@hortonworks.com>
wrote:

> yes, bumped them up to
>
> export MAVEN_OPTS="-Xmx3072m -XX:MaxPermSize=768m"
> export ANT_OPTS=$MAVEN_OPTS
>
> also extended test runs times.
>
>
>
> On 8 December 2014 at 00:58, Ted Yu <yuzhihong@gmail.com> wrote:
>
> > Looking at the test failures of
> > https://builds.apache.org/job/Hadoop-Hdfs-trunk/1963/ which uses jdk
> 1.7:
> >
> > e.g.
> >
> >
> https://builds.apache.org/job/Hadoop-Hdfs-trunk/1963/testReport/junit/org.apache.hadoop.hdfs.server.namenode.snapshot/TestRenameWithSnapshots/testRenameFileAndDeleteSnapshot/
> >
> > java.lang.OutOfMemoryError: Java heap space
> >         at
> sun.nio.ch.EPollArrayWrapper.<init>(EPollArrayWrapper.java:120)
> >         at sun.nio.ch.EPollSelectorImpl.<init>(EPollSelectorImpl.java:68)
> >         at
> >
> sun.nio.ch.EPollSelectorProvider.openSelector(EPollSelectorProvider.java:36)
> >         at
> > io.netty.channel.nio.NioEventLoop.openSelector(NioEventLoop.java:126)
> >         at
> io.netty.channel.nio.NioEventLoop.<init>(NioEventLoop.java:120)
> >         at
> >
> io.netty.channel.nio.NioEventLoopGroup.newChild(NioEventLoopGroup.java:87)
> >         at
> >
> io.netty.util.concurrent.MultithreadEventExecutorGroup.<init>(MultithreadEventExecutorGroup.java:64)
> >
> >
> > Should more heap be given to the tests ?
> >
> >
> > Cheers
> >
> >
> > On Sun, Dec 7, 2014 at 2:09 PM, Steve Loughran <stevel@hortonworks.com>
> > wrote:
> >
> > > The latest migration status:
> > >
> > >   if the jenkins builds are happy then the patch will go in -I do that
> > > monday morning 10:00 UTC
> > >
> > > https://builds.apache.org/view/H-L/view/Hadoop/
> > >
> > > Getting jenkins to work has been "surprisingly difficult"...it turns
> out
> > > that those builds which we thought were java7 or java8 weren't, as
> > setting
> > >   export JAVA_HOME=${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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