Ok, then let's see whether it reoccurs. What you could do is to revert the fix and check the stack trace again.
Cheers, Till On Sat, Dec 12, 2020, 02:16 Dan Hill <quietgol...@gmail.com> wrote: > Hmm, I don't have a good job I can separate for reproduction. I was using > Table SQL and inserting a long field (which was null) into a table that > sinked out to avro. The exception was being thrown from this Avro > function. I can watch to see if it keeps happening. > > > https://github.com/apache/avro/blob/e982f2e6ee57c362a7fae21ba7373c1cfc964fce/lang/java/avro/src/main/java/org/apache/avro/generic/GenericDatumWriter.java#L127 > > On Fri, Dec 11, 2020 at 3:31 AM Till Rohrmann <trohrm...@apache.org> > wrote: > >> Hi Dan, >> >> Do you have an example job and some sample data to reproduce this >> problem? I couldn't reproduce it locally with a simple example job. >> >> Cheers, >> Till >> >> On Thu, Dec 10, 2020 at 5:51 PM Dan Hill <quietgol...@gmail.com> wrote: >> >>> Yea, the error makes sense and was an easy fix. >>> >>> Any idea what happened with the hidden stacktrace? The hidden >>> stacktrace made this 100x more difficult. >>> >>> On Thu, Dec 10, 2020 at 12:59 AM Flavio Pompermaier < >>> pomperma...@okkam.it> wrote: >>> >>>> It looks like the problem is that there's a problem in reading a null >>>> value in the AvroRowDataDeserializationSchema (see below for the snippet of >>>> code from Flink 1.11.1). >>>> The problem is due to the fact that there's a bad typing of the source >>>> so the call to createConverter() within the createNullableConverter() >>>> returns null, creating a null on fieldConverters[i] and, in the end, a >>>> NullPointer in fieldConverters[i].convert(). Does it make sense? >>>> >>>> static DeserializationRuntimeConverter createRowConverter(RowType >>>> rowType) { >>>> final DeserializationRuntimeConverter[] fieldConverters = >>>> rowType.getFields().stream() >>>> .map(RowType.RowField::getType) >>>> .map(AvroRowDataDeserializationSchema::createNullableConverter) >>>> .toArray(DeserializationRuntimeConverter[]::new); >>>> final int arity = rowType.getFieldCount(); >>>> return avroObject -> { >>>> IndexedRecord record = (IndexedRecord) avroObject; >>>> GenericRowData row = new GenericRowData(arity); >>>> for (int i = 0; i < arity; ++i) { >>>> row.setField(i, fieldConverters[i].convert(record.get(i))); >>>> } >>>> return row; >>>> }; >>>> } >>>> >>>> Best, >>>> Flavio >>>> >>>> On Thu, Dec 10, 2020 at 8:39 AM Dan Hill <quietgol...@gmail.com> wrote: >>>> >>>>> One of the Exception instances finally reported a stacktrace. I'm not >>>>> sure why it's so infrequent. >>>>> >>>>> java.lang.NullPointerException: null >>>>> >>>>> at >>>>> org.apache.flink.table.data.GenericRowData.getLong(GenericRowData.java:154) >>>>> ~[flink-table-blink_2.12-1.11.1.jar:1.11.1] >>>>> >>>>> at >>>>> org.apache.flink.table.data.RowData.lambda$createFieldGetter$245ca7d1$7(RowData.java:338) >>>>> ~[flink-table-blink_2.12-1.11.1.jar:1.11.1] >>>>> >>>>> at >>>>> org.apache.flink.formats.avro.AvroRowDataSerializationSchema.lambda$createRowConverter$6827278$1(AvroRowDataSerializationSchema.java:177) >>>>> ~[blob_p-97afea7f96212938a7f59355af26e877ab52777d-022ef71f40ed0889789b9e942825fbb7:?] >>>>> >>>>> at >>>>> org.apache.flink.formats.avro.AvroFileSystemFormatFactory$RowDataAvroWriterFactory$1.addElement(AvroFileSystemFormatFactory.java:251) >>>>> ~[blob_p-97afea7f96212938a7f59355af26e877ab52777d-022ef71f40ed0889789b9e942825fbb7:?] >>>>> >>>>> at >>>>> org.apache.flink.formats.avro.AvroFileSystemFormatFactory$RowDataAvroWriterFactory$1.addElement(AvroFileSystemFormatFactory.java:247) >>>>> ~[blob_p-97afea7f96212938a7f59355af26e877ab52777d-022ef71f40ed0889789b9e942825fbb7:?] >>>>> >>>>> at >>>>> org.apache.flink.table.filesystem.FileSystemTableSink$ProjectionBulkFactory$1.addElement(FileSystemTableSink.java:498) >>>>> ~[flink-table-blink_2.12-1.11.1.jar:1.11.1] >>>>> >>>>> at >>>>> org.apache.flink.table.filesystem.FileSystemTableSink$ProjectionBulkFactory$1.addElement(FileSystemTableSink.java:494) >>>>> ~[flink-table-blink_2.12-1.11.1.jar:1.11.1] >>>>> >>>>> at >>>>> org.apache.flink.streaming.api.functions.sink.filesystem.BulkPartWriter.write(BulkPartWriter.java:48) >>>>> ~[flink-dist_2.12-1.11.1.jar:1.11.1] >>>>> >>>>> at >>>>> org.apache.flink.streaming.api.functions.sink.filesystem.Bucket.write(Bucket.java:202) >>>>> ~[flink-dist_2.12-1.11.1.jar:1.11.1] >>>>> >>>>> at >>>>> org.apache.flink.streaming.api.functions.sink.filesystem.Buckets.onElement(Buckets.java:282) >>>>> ~[flink-dist_2.12-1.11.1.jar:1.11.1] >>>>> >>>>> at >>>>> org.apache.flink.streaming.api.functions.sink.filesystem.StreamingFileSinkHelper.onElement(StreamingFileSinkHelper.java:104) >>>>> ~[flink-dist_2.12-1.11.1.jar:1.11.1] >>>>> >>>>> at >>>>> org.apache.flink.table.filesystem.stream.StreamingFileWriter.processElement(StreamingFileWriter.java:118) >>>>> ~[flink-table-blink_2.12-1.11.1.jar:1.11.1] >>>>> >>>>> at >>>>> org.apache.flink.streaming.runtime.tasks.OperatorChain$CopyingChainingOutput.pushToOperator(OperatorChain.java:717) >>>>> ~[flink-dist_2.12-1.11.1.jar:1.11.1] >>>>> >>>>> at >>>>> org.apache.flink.streaming.runtime.tasks.OperatorChain$CopyingChainingOutput.collect(OperatorChain.java:692) >>>>> ~[flink-dist_2.12-1.11.1.jar:1.11.1] >>>>> >>>>> at >>>>> org.apache.flink.streaming.runtime.tasks.OperatorChain$CopyingChainingOutput.collect(OperatorChain.java:672) >>>>> ~[flink-dist_2.12-1.11.1.jar:1.11.1] >>>>> >>>>> at >>>>> org.apache.flink.streaming.api.operators.CountingOutput.collect(CountingOutput.java:52) >>>>> ~[flink-dist_2.12-1.11.1.jar:1.11.1] >>>>> >>>>> at >>>>> org.apache.flink.streaming.api.operators.CountingOutput.collect(CountingOutput.java:30) >>>>> ~[flink-dist_2.12-1.11.1.jar:1.11.1] >>>>> >>>>> at StreamExecCalc$793.processElement(Unknown Source) ~[?:?] >>>>> >>>>> at >>>>> org.apache.flink.streaming.runtime.tasks.OperatorChain$CopyingChainingOutput.pushToOperator(OperatorChain.java:717) >>>>> ~[flink-dist_2.12-1.11.1.jar:1.11.1] >>>>> >>>>> at >>>>> org.apache.flink.streaming.runtime.tasks.OperatorChain$CopyingChainingOutput.collect(OperatorChain.java:692) >>>>> ~[flink-dist_2.12-1.11.1.jar:1.11.1] >>>>> >>>>> at >>>>> org.apache.flink.streaming.runtime.tasks.OperatorChain$CopyingChainingOutput.collect(OperatorChain.java:672) >>>>> ~[flink-dist_2.12-1.11.1.jar:1.11.1] >>>>> >>>>> at >>>>> org.apache.flink.streaming.api.operators.CountingOutput.collect(CountingOutput.java:52) >>>>> ~[flink-dist_2.12-1.11.1.jar:1.11.1] >>>>> >>>>> at >>>>> org.apache.flink.streaming.api.operators.CountingOutput.collect(CountingOutput.java:30) >>>>> ~[flink-dist_2.12-1.11.1.jar:1.11.1] >>>>> >>>>> at >>>>> org.apache.flink.streaming.api.operators.TimestampedCollector.collect(TimestampedCollector.java:53) >>>>> ~[flink-dist_2.12-1.11.1.jar:1.11.1] >>>>> >>>>> at >>>>> org.apache.flink.table.runtime.operators.join.interval.EmitAwareCollector.collect(EmitAwareCollector.java:48) >>>>> ~[flink-table-blink_2.12-1.11.1.jar:1.11.1] >>>>> >>>>> at >>>>> org.apache.flink.table.runtime.operators.join.interval.EmitAwareCollector.collect(EmitAwareCollector.java:28) >>>>> ~[flink-table-blink_2.12-1.11.1.jar:1.11.1] >>>>> >>>>> at >>>>> org.apache.flink.table.runtime.operators.join.interval.TimeIntervalJoin.lambda$removeExpiredRows$2(TimeIntervalJoin.java:411) >>>>> ~[flink-table-blink_2.12-1.11.1.jar:1.11.1] >>>>> >>>>> at java.util.ArrayList.forEach(ArrayList.java:1259) >>>>> ~[?:1.8.0_265] >>>>> >>>>> at >>>>> org.apache.flink.table.runtime.operators.join.interval.TimeIntervalJoin.removeExpiredRows(TimeIntervalJoin.java:408) >>>>> ~[flink-table-blink_2.12-1.11.1.jar:1.11.1] >>>>> >>>>> at >>>>> org.apache.flink.table.runtime.operators.join.interval.TimeIntervalJoin.onTimer(TimeIntervalJoin.java:332) >>>>> ~[flink-table-blink_2.12-1.11.1.jar:1.11.1] >>>>> >>>>> at >>>>> org.apache.flink.table.runtime.operators.join.interval.RowTimeIntervalJoin.onTimer(RowTimeIntervalJoin.java:30) >>>>> ~[flink-table-blink_2.12-1.11.1.jar:1.11.1] >>>>> >>>>> at >>>>> org.apache.flink.streaming.api.operators.co.KeyedCoProcessOperator.onEventTime(KeyedCoProcessOperator.java:95) >>>>> ~[flink-dist_2.12-1.11.1.jar:1.11.1] >>>>> >>>>> at >>>>> org.apache.flink.streaming.api.operators.InternalTimerServiceImpl.advanceWatermark(InternalTimerServiceImpl.java:276) >>>>> ~[flink-dist_2.12-1.11.1.jar:1.11.1] >>>>> >>>>> On Wed, Dec 9, 2020 at 4:33 PM Dan Hill <quietgol...@gmail.com> wrote: >>>>> >>>>>> In the Flink dashboard, my job is failing with a NullPointerException >>>>>> but the Exception is not showing a stack trace. I do not see any >>>>>> NullPointerExceptions in any of the flink-jobmanager and >>>>>> flink-taskmanager >>>>>> logs. >>>>>> >>>>>> Is this a normal issue? >>>>>> >>>>>> [image: Screen Shot 2020-12-09 at 4.29.30 PM.png] >>>>>> >>>>>
