Hi there- I don't think this is an HBase question.
On 10/7/11 10:35 AM, "Ta, Le (Clovis)" <[email protected]> wrote: >Hi, > >I am getting the following exception when trying to run the >DBCountPageView example obtained from >http://search-hadoop.com/c/Map/Reduce:/src/examples/org/apache/hadoop/exam >ples/DBCountPageView.java. I am using a PostgreSQL database. Any help >would be greatly appreciated! > >Thanks, >Le > >java.io.IOException: Type mismatch in key from map: expected >org.apache.hadoop.io.Text, recieved org.apache.hadoop.io.LongWritable > at >org.apache.hadoop.mapred.MapTask$MapOutputBuffer.collect(MapTask.java:871) > at >org.apache.hadoop.mapred.MapTask$NewOutputCollector.write(MapTask.java:574 >) > at >org.apache.hadoop.mapreduce.TaskInputOutputContext.write(TaskInputOutputCo >ntext.java:80) > at org.apache.hadoop.mapreduce.Mapper.map(Mapper.java:124) > at org.apache.hadoop.mapreduce.Mapper.run(Mapper.java:144) > at >org.apache.hadoop.mapred.MapTask.runNewMapper(MapTask.java:647) > at org.apache.hadoop.mapred.MapTask.run(MapTask.java:323) > at >org.apache.hadoop.mapred.LocalJobRunner$Job.run(LocalJobRunner.java:210) >11/10/06 08:48:37 INFO mapred.JobClient: map 0% reduce 0% >11/10/06 08:48:37 INFO mapred.JobClient: Job complete: job_local_0001 >11/10/06 08:48:37 INFO mapred.JobClient: Counters: 0 >11/10/06 08:48:37 INFO examples.DBCountPageView: totalPageview=60 >11/10/06 08:48:37 INFO examples.DBCountPageView: sumPageview=0 >java.lang.RuntimeException: Evaluation was not correct! > at >org.apache.hadoop.examples.DBCountPageView.run(DBCountPageView.java:439) > at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:65) > at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:79) > at >org.apache.hadoop.examples.DBCountPageView.main(DBCountPageView.java:452) > >
