Sergey created PIG-3357:
---------------------------
Summary: Pig doesn't take case of declared float and converts it
to double
Key: PIG-3357
URL: https://issues.apache.org/jira/browse/PIG-3357
Project: Pig
Issue Type: Bug
Components: piggybank
Affects Versions: 0.11
Environment: cdh 4.3.0
Reporter: Sergey
Here is the script:
{code}
register /usr/lib/pig/lib/avro-1.7.4.jar;
register /usr/lib/pig/lib/json-simple-1.1.jar;
register /usr/lib/pig/piggybank.jar;
register test.py using jython as udf;
table_in = load 'in' as (v: float);
table_out = foreach table_in generate udf.test(v);
store table_out into 'out' using
org.apache.pig.piggybank.storage.avro.AvroStorage('schema', '{"name": "test",
"type": "float"}');
{code}
Here is UDF:
{code=python}
@outputSchema("v: float")
def test(v):
return v
{code}
Here is an input:
{code}
1
{code}
Here is the stacktrace:
java.lang.Exception: org.apache.avro.file.DataFileWriter$AppendWriteException:
java.io.IOException: Cannot convert to float:class java.lang.Double
at
org.apache.hadoop.mapred.LocalJobRunner$Job.run(LocalJobRunner.java:404)
Caused by: org.apache.avro.file.DataFileWriter$AppendWriteException:
java.io.IOException: Cannot convert to float:class java.lang.Double
at org.apache.avro.file.DataFileWriter.append(DataFileWriter.java:260)
at
org.apache.pig.piggybank.storage.avro.PigAvroRecordWriter.write(PigAvroRecordWriter.java:49)
at
org.apache.pig.piggybank.storage.avro.AvroStorage.putNext(AvroStorage.java:722)
at
org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.PigOutputFormat$PigRecordWriter.write(PigOutputFormat.java:139)
at
org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.PigOutputFormat$PigRecordWriter.write(PigOutputFormat.java:98)
at
org.apache.hadoop.mapred.MapTask$NewDirectOutputCollector.write(MapTask.java:558)
at
org.apache.hadoop.mapreduce.task.TaskInputOutputContextImpl.write(TaskInputOutputContextImpl.java:85)
at
org.apache.hadoop.mapreduce.lib.map.WrappedMapper$Context.write(WrappedMapper.java:106)
at
org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.PigMapOnly$Map.collect(PigMapOnly.java:48)
at
org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.PigGenericMapBase.runPipeline(PigGenericMapBase.java:285)
at
org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.PigGenericMapBase.map(PigGenericMapBase.java:278)
at
org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.PigGenericMapBase.map(PigGenericMapBase.java:64)
at org.apache.hadoop.mapreduce.Mapper.run(Mapper.java:140)
at org.apache.hadoop.mapred.MapTask.runNewMapper(MapTask.java:672)
at org.apache.hadoop.mapred.MapTask.run(MapTask.java:330)
at
org.apache.hadoop.mapred.LocalJobRunner$Job$MapTaskRunnable.run(LocalJobRunner.java:266)
at
java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334)
at java.util.concurrent.FutureTask.run(FutureTask.java:166)
at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1146)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
at java.lang.Thread.run(Thread.java:679)
Caused by: java.io.IOException: Cannot convert to float:class java.lang.Double
at
org.apache.pig.piggybank.storage.avro.PigAvroDatumWriter.writeFloat(PigAvroDatumWriter.java:281)
at
org.apache.pig.piggybank.storage.avro.PigAvroDatumWriter.write(PigAvroDatumWriter.java:88)
at
org.apache.avro.generic.GenericDatumWriter.write(GenericDatumWriter.java:58)
at org.apache.avro.file.DataFileWriter.append(DataFileWriter.java:257)
... 21 more
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