[PIG-5349] Log stderr output when shell command fail

• Type: Improvement
• Status: Resolved
• Priority: Trivial
• Resolution: Fixed
• Fix Version/s: 0.18.0
• Hadoop Flags: Reviewed
• Assignee: Koji Noguchi
• Reporter: Koji Noguchi
• Created: 12/Jul/18 17:23
• Updated: 27/Sep/18 18:04
• Resolved: 13/Jul/18 13:39

Description

For a script like 

%declare abc `/bin/bash doesnotexist.sh`

Pig currently fails with the message

2018-07-12 13:21:28,364 [main] INFO  org.apache.pig.tools.parameters.PreprocessorContext - Executing command : /bin/bash doesnotexist.sh
2018-07-12 13:21:28,399 [main] ERROR org.apache.pig.Main - ERROR 2999: Unexpected internal error. Error executing shell command: /bin/bash doesnotexist.sh. Command exit with exit code of 127

It'll be nice if we can show the error message from the script.