Hello,
Recently I'm trying to launch some performance tests using Apache tool: 
http://wiki.apache.org/hadoop/Hbase/PerformanceEvaluation, but I'm facing many 
problems. First I have to add that we're using HBase 0.92 with Hadoop 0.22. 
When I'm launching tool I get following error:

mapreduce.JobSubmitter: Cleaning up the staging area 
hdfs://nn.evizone.icsadl.agh.edu.pl/tmp/hadoop-root/mapred/staging/hdfs/.staging/job_201205231343_0004
Exception in thread "main" java.lang.IncompatibleClassChangeError: Found 
interface org.apache.hadoop.mapreduce.JobContext, but class was expected

Maybe there is any posibility to change only required classes in jars? I tried 
to use hadoop-core-1.0.0 but then versions don't match and exceptions are 
thrown...

-- 
Konrad Tendera

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