Sudhir Ranjan created PIG-3656:
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Summary: Exception on storing Null value through AvroStorage using
PIG
Key: PIG-3656
URL: https://issues.apache.org/jira/browse/PIG-3656
Project: Pig
Issue Type: Bug
Environment: Hadoop 0.20.2-cdh3u5
Apache Pig version 0.8.1-cdh3u5
java version "1.6.0_27"
Reporter: Sudhir Ranjan
Getting exception on storing null valued record/tupple as avro.
The input file having one column with long values (one of them is null means
nothing) and when I am trying to store the data in avro format ,it throws error.
Please suggest if I am missing any thing some where as per the bellow codebase
or else please provide the patch.
******My code base.
REGISTER /home/hadoop/work/sudhir/AvroAnalysis/Avrojars/snappy-java-1.0.4.1.jar
REGISTER /home/hadoop/work/sudhir/AvroAnalysis/Avrojars/avro-1.7.5.jar
REGISTER /home/hadoop/work/sudhir/AvroAnalysis/Avrojars/json-simple-1.1.jar;
REGISTER /home/hadoop/work/sudhir/AvroAnalysis/Avrojars/piggybank.jar;
REGISTER
/home/hadoop/work/sudhir/AvroAnalysis/Avrojars/jackson-core-asl-1.5.5.jar;
REGISTER
/home/hadoop/work/sudhir/AvroAnalysis/Avrojars/jackson-mapper-asl-1.5.5.jar;
– The input file only have 1 column (normal TEXT data i.e TSV format) and the
file having a null value means nothing
A = load '/home/hadoop/work/sudhir/AvroAnalysis/input/TSV_uncompressed/part*'
using PigStorage('\t') as (USER_ID:long);
– The soutput to be stored in avro data format
STORE A INTO
'/home/hadoop/work/sudhir/AvroAnalysis/output/TSV_uncompressed/part*' USING
org.apache.pig.piggybank.storage.avro.AvroStorage('schema','{"namespace":"com.sudhir.schema.users.avro","type":"long","name":"users_avro","doc":"Avro
storing with schema using Pig.","fields":[
{"name":"USER_ID","type":["null","long"],"default":null}
]}');
*******Getting Error like:
INFO
org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.MapReduceLauncher
- 100% complete
ERROR org.apache.pig.tools.pigstats.PigStats - ERROR 2997: Unable to recreate
exception from backed error:
org.apache.avro.file.DataFileWriter$AppendWriteException:
java.lang.NullPointerException: null of long
ERROR org.apache.pig.tools.pigstats.PigStatsUtil - 1 map reduce job(s) failed!
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