[HIVE-20162] Do Not Print StackTraces to STDERR in AbstractJoinTaskDispatcher

• Type: Improvement
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 3.0.0, 4.0.0
• Fix Version/s: 4.0.0
• Component/s: Query Planning
• Labels: newbie noob
• Assignee: Anurag Mantripragada
• Reporter: David Mollitor
• Created: 12/Jul/18 22:49
• Updated: 06/Aug/18 02:39
• Resolved: 06/Aug/18 02:39

Description

https://github.com/apache/hive/blob/6d890faf22fd1ede3658a5eed097476eab3c67e9/ql/src/java/org/apache/hadoop/hive/ql/optimizer/physical/AbstractJoinTaskDispatcher.java

    } catch (Exception e) {
      e.printStackTrace();
      throw new SemanticException("Generate Map Join Task Error: " + e.getMessage());
    }

Remove the call to printStackTrace and just throw the error. If the stack trace really is needed (doubtful), then pass it to the SemanticException constructor.