I am using Pig 0.11.1 (on CDH4 with MR1) and DBStorage to output aggregated results to MySql2. The job appears to be running fine (finishes successfully and generates an output) but I am getting the warning below. I have done some research but have not been able to understand what the warning means or what impact it may be having. Any information is very appreciated.
2014-06-05 06:42:53,189 [main] INFO org.apache.pig.tools.pigstats.JobStats - using output size reader: org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.FileBasedOutputSizeReader 2014-06-05 06:42:53,192 [main] WARN org.apache.pig.tools.pigstats.JobStats - unable to find the output file java.io.FileNotFoundException: File hdfs://ph-task201.mydomain.com:8020/user/V5/ByContentV2 does not exist. at org.apache.hadoop.hdfs.DistributedFileSystem.listStatus(DistributedFileSystem.java:410) at org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.FileBasedOutputSizeReader.getOutputSize(FileBasedOutputSizeReader.java:65) at org.apache.pig.tools.pigstats.JobStats.getOutputSize(JobStats.java:543) at org.apache.pig.tools.pigstats.JobStats.addOneOutputStats(JobStats.java:567) at org.apache.pig.tools.pigstats.JobStats.addOutputStatistics(JobStats.java:520) at org.apache.pig.tools.pigstats.PigStatsUtil.addSuccessJobStats(PigStatsUtil.java:356) at org.apache.pig.tools.pigstats.PigStatsUtil.accumulateStats(PigStatsUtil.java:257) at org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.MapReduceLauncher.launchPig(MapReduceLauncher.java:324) at org.apache.pig.PigServer.launchPlan(PigServer.java:1266) at org.apache.pig.PigServer.executeCompiledLogicalPlan(PigServer.java:1251) at org.apache.pig.PigServer.execute(PigServer.java:1241) at org.apache.pig.PigServer.executeBatch(PigServer.java:335) at org.apache.pig.tools.grunt.GruntParser.executeBatch(GruntParser.java:137) at org.apache.pig.tools.grunt.GruntParser.parseStopOnError(GruntParser.java:198) at org.apache.pig.tools.grunt.GruntParser.parseStopOnError(GruntParser.java:170) at org.apache.pig.tools.grunt.Grunt.exec(Grunt.java:84) at org.apache.pig.Main.run(Main.java:604) at org.apache.pig.Main.main(Main.java:157) 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.RunJar.main(RunJar.java:208)
