[PIG-5078] Script fails with error - POStoreTez only accepts MROutput

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 0.17.0, 0.16.1
• Hadoop Flags: Reviewed
• Assignee: Rohini Palaniswamy
• Reporter: Rohini Palaniswamy
• Created: 16/Dec/16 20:09
• Updated: 21/Jun/17 09:15
• Resolved: 17/Jan/17 17:46

Description

Script with following pattern

a = load 'file:///tmp/input' as (x:int, y:chararray);
b = load 'file:///tmp/input1' as (y:chararray, x:int);
c = union onschema a, b;" +
split c into d if x <= 5, e if x <= 10, f if x >10, g if y == '6';
h = union onschema d, e, f, g;
store h into 'output';

fails with the below exception

Error: Failure while running task:org.apache.pig.backend.executionengine.ExecException: ERROR 0: POStoreTez only accepts MROutput. key = scope-57, outputs = {scope-45=org.apache.tez.mapreduce.output.MROutput@154c3ee2, scope-46=org.apache.tez.mapreduce.output.MROutput@1e986ab0, scope-44=org.apache.tez.mapreduce.output.MROutput@360aaa8a, scope-47=org.apache.tez.mapreduce.output.MROutput@75a0d6b1}
at org.apache.pig.backend.hadoop.executionengine.tez.plan.operator.POStoreTez.attachOutputs(POStoreTez.java:95)
at org.apache.pig.backend.hadoop.executionengine.tez.runtime.PigProcessor.initializeOutputs(PigProcessor.java:372)
at org.apache.pig.backend.hadoop.executionengine.tez.runtime.PigProcessor.run(PigProcessor.java:230)

Issue Links

• incorporates: PIG-5082 Tez UnionOptimizer creates vertex group with one member