I really really need this running. I cannot get hadoop-0.20.2 tarball from apache hadoop project website. Is there any place where I can get it ?
thanks, Tejas Patil On Tue, Jan 29, 2013 at 1:10 PM, aaron morton <aa...@thelastpickle.com>wrote: > Brian, > Could you raise a ticket at > https://issues.apache.org/jira/browse/CASSANDRA ? > > Thanks > > ----------------- > Aaron Morton > Freelance Cassandra Developer > New Zealand > > @aaronmorton > http://www.thelastpickle.com > > On 30/01/2013, at 1:23 AM, Brian Jeltema <brian.jelt...@digitalenvoy.net> > wrote: > > In hadoop-0.20.2, org.apache.hadoop.mapreduce.JobContext is a class. Looks > like in hadoop-0.21+ JobContext has morphed into an interface. > I'd guess that Hadoop support in Cassandra is based on the older Hadoop. > > Brian > > On Jan 29, 2013, at 3:42 AM, Tejas Patil wrote: > > I am trying to run a map-reduce job to read data from Cassandra v1.2.0. > I started off with the code here: > > https://svn.apache.org/repos/asf/cassandra/trunk/examples/hadoop_word_count/src/WordCount.java > > While running it over hadoop-0.22.0, I get this: > > Exception in thread "main" java.lang.IncompatibleClassChangeError: Found > interface org.apache.hadoop.mapreduce.JobContext, but class was expected > at > org.apache.cassandra.hadoop.ColumnFamilyInputFormat.getSplits(ColumnFamilyInputFormat.java:103) > at > org.apache.hadoop.mapreduce.JobSubmitter.writeNewSplits(JobSubmitter.java:445) > at > org.apache.hadoop.mapreduce.JobSubmitter.writeSplits(JobSubmitter.java:462) > at > org.apache.hadoop.mapreduce.JobSubmitter.submitJobInternal(JobSubmitter.java:357) > at org.apache.hadoop.mapreduce.Job$2.run(Job.java:1045) > at org.apache.hadoop.mapreduce.Job$2.run(Job.java:1042) > at java.security.AccessController.doPrivileged(Native Method) > at javax.security.auth.Subject.doAs(Subject.java:415) > at > org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1153) > at org.apache.hadoop.mapreduce.Job.submit(Job.java:1042) > at org.apache.hadoop.mapreduce.Job.waitForCompletion(Job.java:1062) > at MyHadoopApp.run(MyHadoopApp.java:163) > at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:69) > at MyHadoopApp.main(MyHadoopApp.java:82) > at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) > at > sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) > at > sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) > at java.lang.reflect.Method.invoke(Method.java:601) > at org.apache.hadoop.util.RunJar.main(RunJar.java:192) > > Does anyone knows about this ? > > Thanks, > Tejas Patil > > > >
