Hi! I can see one NullPointerException in the LOG with the following stack trace
java.lang.NullPointerException at java.lang.String.<init>(String.java:556) at org.okkam.flink.hbase.MyTableInputFormat.mapResultToRecord(MyTableInputFormat.java:90) at org.okkam.flink.hbase.MyTableInputFormat.getRecord(MyTableInputFormat.java:32) at org.okkam.flink.maintenance.deduplication.match.SingleMatchFilterFunctionWithFlagMatch.filter(SingleMatchFilterFunctionWithFlagMatch.java:135) at org.okkam.flink.maintenance.deduplication.match.SingleMatchFilterFunctionWithFlagMatch.filter(SingleMatchFilterFunctionWithFlagMatch.java:50) at org.apache.flink.api.java.operators.translation.PlanFilterOperator$FlatMapFilter.flatMap(PlanFilterOperator.java:47) at org.apache.flink.runtime.operators.chaining.ChainedFlatMapDriver.collect(ChainedFlatMapDriver.java:79) at org.apache.flink.api.java.operators.DistinctOperator$DistinctFunction.reduce(DistinctOperator.java:151) at org.apache.flink.runtime.operators.GroupReduceDriver.run(GroupReduceDriver.java:117) at org.apache.flink.runtime.operators.RegularPactTask.run(RegularPactTask.java:484) at org.apache.flink.runtime.operators.RegularPactTask.invoke(RegularPactTask.java:359) at org.apache.flink.runtime.execution.RuntimeEnvironment.run(RuntimeEnvironment.java:246) at java.lang.Thread.run(Thread.java:745) There is another one where the stack trace is missing. I am not sure why. Found this here while I searched: http://stackoverflow.com/questions/2411487/nullpointerexception-in-java-with-no-stacktrace Stephan On Tue, Nov 25, 2014 at 12:31 PM, Stefano Bortoli <s.bort...@gmail.com> wrote: > nope. > > will do. Thanks! :-) > > saluti, > Stefano > > 2014-11-25 12:04 GMT+01:00 Stephan Ewen <se...@apache.org>: > >> Hi! >> >> There is no stack trace beneath that line in the log? >> >> I'll check it out if you send me the log directly (se...@apache.org). >> The mailing list does not support attachments, unfortunately... >> >> Stephan >> >> >> On Tue, Nov 25, 2014 at 12:01 PM, Stefano Bortoli <s.bort...@gmail.com> >> wrote: >> >>> Both, job and task manager do not present any stack trace: >>> >>> JOBMANAGER >>> 07:13:15,231 INFO >>> org.apache.flink.runtime.jobmanager.EventCollector - 11/25/2014 >>> 07:13:15: CHAIN Reduce >>> (org.apache.flink.api.java.operators.DistinctOperator$DistinctFunction) -> >>> Filter >>> (org.okkam.flink.maintenance.deduplication.match.SingleMatchFilterFunctionWithFlagMatch) >>> -> Map >>> (org.okkam.flink.maintenance.deduplication.match.MapToTuple3MapFunction) -> >>> Combine(org.apache.flink.api.java.operators.DistinctOperator$DistinctFunction) >>> (18/24) switched to FAILED >>> java.lang.NullPointerException >>> >>> >>> TASKMANAGER (on the machine that failed) >>> 07:13:15,124 ERROR >>> org.apache.flink.runtime.operators.RegularPactTask - Error in >>> task code: CHAIN Reduce >>> (org.apache.flink.api.java.operators.DistinctOperator$DistinctFunction) -> >>> Filter >>> (org.okkam.flink.maintenance.deduplication.match.SingleMatchFilterFunctionWithFlagMatch) >>> -> Map >>> (org.okkam.flink.maintenance.deduplication.match.MapToTuple3MapFunction) >>> -> >>> Combine(org.apache.flink.api.java.operators.DistinctOperator$DistinctFunction) >>> (18/24) >>> java.lang.NullPointerException >>> >>> >>> do you want me to attach the whole log files? >>> >>> saluti, >>> Stefano >>> >> >> >