This has bitten me before, too. I pushed a change to issue an additional warning if the minicluster fails to start and the environment points to Java 7 and Hadoop 3: https://gerrit.cloudera.org/#/c/10222/
Most people will have seen it by now, but maybe it's not too late to safe someone else from the trouble. :) On Thu, Apr 26, 2018 at 9:40 AM, Gabor Kaszab <gaborkas...@cloudera.com> wrote: > Hey Jim, > I got the same error the other day. Moving to Java8 solved it for me. > > Gabor > > On Thu, Apr 26, 2018 at 6:37 PM, Philip Zeyliger <phi...@cloudera.com> > wrote: > > > Hi Jim, > > > > Are you using JDK7? Hadoop3 supports only JDK8+. > > > > -- Philip > > > > On Thu, Apr 26, 2018 at 9:35 AM, Jim Apple <jbap...@cloudera.com> wrote: > > > > > testdata/bin/run-all.sh fails for me with the following error > > > > > > Exception in thread "main" java.lang.UnsupportedClassVersionError: > > > org/apache/hadoop/hdfs/server/namenode/NameNode : Unsupported > > major.minor > > > version 52.0 > > > > > > This is at gerrit HEAD, at tree hash > > > > > > 6e88e1b26423badb4012506c10a98f32f600dbdb IMPALA-6892: > > > CheckHashAndDecrypt() > > > includes file and host > > > > > > aka commit > > > > > > 518bcd3e148caa8b42011de11e971c2978fb6f3b > > > > > > This occurs even after a successful buildall.sh > > > > > >
