[jira] [Created] (PIG-4151) Pig Cannot Write Empty Maps to HBase

["Daniel Dai (JIRA)" <ji...@apache.org>]

Daniel Dai created PIG-4151:
-------------------------------

             Summary: Pig Cannot Write Empty Maps to HBase
                 Key: PIG-4151
                 URL: https://issues.apache.org/jira/browse/PIG-4151
             Project: Pig
          Issue Type: Bug
          Components: internal-udfs
            Reporter: Daniel Dai
            Assignee: Daniel Dai
             Fix For: 0.14.0


Pig is unable to write empty maps to HBase. Instruction for reproduce:

input file pig_data_bad.txt:
{code}
row1;Homer;Morrison;[1#Silvia,2#Stacy]
row2;Sheila;Fletcher;[1#Becky,2#Salvador,3#Lois]
row4;Andre;Morton;[1#Nancy]
row3;Sonja;Webb;[]
{code}

Create table in hbase:
create 'test', 'info', 'friends'

Pig script:
{code}
source = LOAD '/pig_data_bad.txt' USING PigStorage(';') AS (row:chararray, first_name:chararray, last_name:chararray, friends:map[]);

STORE source INTO 'hbase://test' USING org.apache.pig.backend.hadoop.hbase.HBaseStorage('info:fname info:lname friends:*');
{code}

Stack:
java.lang.NullPointerException
at org.apache.pig.backend.hadoop.hbase.HBaseStorage.putNext(HBaseStorage.java:880)
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$NewDirectOutputCollector.write(MapTask.java:635)
at org.apache.hadoop.mapreduce.task.TaskInputOutputContextImpl.write(TaskInputOutputContextImpl.java:89)
at org.apache.hadoop.mapreduce.lib.map.WrappedMapper$Context.write(WrappedMapper.java:112)
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:284)
at org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.PigGenericMapBase.map(PigGenericMapBase.java:277)
at org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.PigGenericMapBase.map(PigGenericMapBase.java:64)
at org.apache.hadoop.mapreduce.Mapper.run(Mapper.java:145)
at org.apache.hadoop.mapred.MapTask.runNewMapper(MapTask.java:764)
at org.apache.hadoop.mapred.MapTask.run(MapTask.java:340)
at org.apache.hadoop.mapred.YarnChild$2.run(YarnChild.java:167)
at java.security.AccessController.doPrivileged(Native Method)
at javax.security.auth.Subject.doAs(Subject.java:415)
at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1594)



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