[HIVE-8346] MapRedLocalTask Error Handling

• Type: Bug
• Status: Resolved
• Priority: Minor
• Resolution: Done
• Affects Version/s: 0.14.0
• Fix Version/s: 1.2.0, 2.1.0
• Component/s: Logging
• Labels: newbie

Release Note

HIVE-9860, HIVE-13183 under the fix version #1.2.0, #2.1.0

• Assignee: Mani M Assign to me
• Reporter: Szehon Ho
• Created: 03/Oct/14 23:27
• Updated: 09/Jan/19 10:01
• Resolved: 09/Jan/19 10:01

Description

If there are any exceptions trying to fork a local task, the exception message is logged but not the stack trace. There can be a lot of issues forking a process, so we should log the stack trace for better debuggability.

Code in MapRedLocalTask.executeInChildJVM(DriverContext ctx):

    } catch (Exception e) {
      e.printStackTrace();
      LOG.error("Exception: " + e.getMessage());
      return (1);
    }

Issue Links

• relates to: HIVE-9860 MapredLocalTask/SecureCmdDoAs leaks local files
• relates to: HIVE-13183 More logs in operation logs