I don't think OpenJDK 7 has been as extensively tested as OpenJDK 6
for Hadoop. I'd recommend staying on 1.6-based JVMs if you have a prod
goal for this cluster, but otherwise, you could give OpenJDK 7 a try
and let us know.
On Thu, Nov 8, 2012 at 11:30 AM, [EMAIL PROTECTED] <[EMAIL PROTECTED]> wrote:
> I am planning to use Ubuntu 12.04, from
> http://wiki.apache.org/hadoop/HadoopJavaVersions, about OpenJDK
> "Note*: OpenJDK6 has some open bugs w.r.t handling of generics... so OpenJDK
> cannot be used to compile hadoop mapreduce code in branch-0.23 and beyond,
> please use other JDKs."
> Is it OK to use OpenJDK 7 in Ubuntu 12.04?