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Ankur commented on PIG-1273: ---------------------------- Complete stack trace of the error thrown my 3rd M/R job in the pipeline java.lang.RuntimeException: Error in configuring object at org.apache.hadoop.util.ReflectionUtils.setJobConf(ReflectionUtils.java:93) at org.apache.hadoop.util.ReflectionUtils.setConf(ReflectionUtils.java:64) at org.apache.hadoop.util.ReflectionUtils.newInstance(ReflectionUtils.java:117) at org.apache.hadoop.mapred.MapTask$OldOutputCollector.(MapTask.java:448) at org.apache.hadoop.mapred.MapTask.runOldMapper(MapTask.java:358) at org.apache.hadoop.mapred.MapTask.run(MapTask.java:307) at org.apache.hadoop.mapred.Child.main(Child.java:159) Caused by: java.lang.reflect.InvocationTargetException at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at org.apache.hadoop.util.ReflectionUtils.setJobConf(ReflectionUtils.java:88) ... 6 more Caused by: java.lang.RuntimeException: java.lang.RuntimeException: Empty samples file at org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.partitioners.SkewedPartitioner.configure(SkewedPartitioner.java:128) ... 11 more Caused by: java.lang.RuntimeException: Empty samples file at org.apache.pig.backend.hadoop.executionengine.util.MapRedUtil.loadPartitionFile(MapRedUtil.java:128) at org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.partitioners.SkewedPartitioner.configure(SkewedPartitioner.java:125) ... 11 more > Skewed join throws error > ------------------------- > > Key: PIG-1273 > URL: https://issues.apache.org/jira/browse/PIG-1273 > Project: Pig > Issue Type: Bug > Affects Versions: 0.6.0 > Reporter: Ankur > > When the sampled relation is too small or empty then skewed join fails. -- This message is automatically generated by JIRA. - You can reply to this email to add a comment to the issue online.