Github user rmetzger commented on the pull request:
https://github.com/apache/incubator-flink/pull/37#issuecomment-48382325
I experienced another error
```
Exception in thread "main" java.io.IOException: An error has occurred.
at
eu.stratosphere.hadoopcompatibility.mapred.StratosphereHadoopJobClient$DummyStratosphereRunningJob.waitForCompletion(StratosphereHadoopJobClient.java:238)
at eu.stratosphere.test.hadoop.Join.run(Join.java:162)
at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:65)
at eu.stratosphere.test.hadoop.Join.main(Join.java:172)
Caused by: eu.stratosphere.nephele.client.JobExecutionException:
java.io.IOException: Type mismatch in key: expected class
org.apache.hadoop.io.BytesWritable, received org.apache.hadoop.io.LongWritable
at
eu.stratosphere.hadoopcompatibility.mapred.wrapper.HadoopOutputCollector.validateExpectedTypes(HadoopOutputCollector.java:78)
at
eu.stratosphere.hadoopcompatibility.mapred.wrapper.HadoopOutputCollector.collect(HadoopOutputCollector.java:48)
at
eu.stratosphere.hadoopcompatibility.mapred.wrapper.HadoopOutputCollector.collect(HadoopOutputCollector.java:1)
at
org.apache.hadoop.mapred.lib.IdentityMapper.map(IdentityMapper.java:38)
at
eu.stratosphere.hadoopcompatibility.mapred.HadoopMapFunction.flatMap(HadoopMapFunction.java:80)
at
eu.stratosphere.hadoopcompatibility.mapred.HadoopMapFunction.flatMap(HadoopMapFunction.java:1)
at
eu.stratosphere.pact.runtime.task.chaining.ChainedFlatMapDriver.collect(ChainedFlatMapDriver.java:71)
at
eu.stratosphere.pact.runtime.task.DataSourceTask.invoke(DataSourceTask.java:215)
at
eu.stratosphere.nephele.execution.RuntimeEnvironment.run(RuntimeEnvironment.java:260)
at java.lang.Thread.run(Thread.java:745)
at
eu.stratosphere.nephele.client.JobClient.submitJobAndWait(JobClient.java:354)
at
eu.stratosphere.client.LocalExecutor.executePlan(LocalExecutor.java:231)
at
eu.stratosphere.api.java.LocalEnvironment.execute(LocalEnvironment.java:55)
at
eu.stratosphere.hadoopcompatibility.mapred.StratosphereHadoopJobClient$DummyStrat
```
I'm not sure what I'm doing wrong.
You can find the code that I'm using for testing here:
https://github.com/rmetzger/testjob/tree/artem
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