> run Hama with Hadoop 2.7.x, is that correct ? Yes, right. As Júlio Pires mentioned before, hadoop 2.7.0 works with JDK 7+ only. Since important new feature of this release is supporting YARN and Mesos, I think we have to support latest hadoop.
> I am fine with that as Java 6 has long gone EOL, but let's make a conscious > decision on that (maybe worth a vote). Agree with you. I'll open the vote first. Thanks Tommaso! On Thu, Jun 4, 2015 at 3:39 PM, Tommaso Teofili <[email protected]> wrote: > one important thing is deciding which Java version we support, as far as I > understand Edward wants to drop support for Java 6 to make it possible to > run Hama with Hadoop 2.7.x, is that correct ? > > I am fine with that as Java 6 has long gone EOL, but let's make a conscious > decision on that (maybe worth a vote). > > Regards, > Tommaso > > > 2015-06-04 3:01 GMT+02:00 Edward J. Yoon <[email protected]>: > >> While testing I received a NoSuchMethodError on >> ConcurrentHashMap$KeySetView: >> >> java.lang.NoSuchMethodError: >> >> java.util.concurrent.ConcurrentHashMap.keySet()Ljava/util/concurrent/ConcurrentHashMap$KeySetView >> >> The reason is that Java 1.7 ConcurrentHashMap#keySet() returns a Set<K> >> while >> the 1.8 ConcurrentHashMap#keySet() returns a >> ConcurrentHashMap.KeySetView<K,V>. >> >> I'll create new one using Java 1.7. Also, if you have any good idea for >> this, >> Pls let me know. >> >> -- >> Best Regards, Edward J. Yoon >> >> -----Original Message----- >> From: Edward J. Yoon [mailto:[email protected]] >> Sent: Thursday, June 04, 2015 8:09 AM >> To: [email protected] >> Subject: [VOTE] Apache Hama 0.7 release (RC1) >> >> Hey all, >> >> I just created a first release candidate for the Apache Hama 0.7 >> release. This release includes new features such as Mesos, Yarn >> modules and many improvements/bug fixes. >> >> The RC1 is available at: >> >> http://people.apache.org/~edwardyoon/dist/0.7.0-RC1/ >> >> Tags: >> >> http://svn.apache.org/repos/asf/hama/tags/0.7.0-RC1/ >> >> Please try it, run the tests, verify checksum files, etc. and vote. >> >> Thanks! >> >> -- >> Best Regards, Edward J. Yoon >> >> >> -- Best Regards, Edward J. Yoon
