[HIVE-19204] Detailed errors from some tasks are not displayed to the client because the tasks don't set exception when they fail

• Type: Improvement
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 3.0.0
• Fix Version/s: 4.0.0-alpha-1
• Component/s: Query Processor
• Assignee: Aihua Xu
• Reporter: Aihua Xu
• Created: 13/Apr/18 17:54
• Updated: 17/Nov/22 08:54
• Resolved: 25/Apr/18 23:18

Description

In TaskRunner.java, if the tasks have exception set, then the task result will have such exception set and Driver.java will get such details and display to the client. But some tasks don't set such exceptions so the client won't see such details unless you check the HS2 log.
 

  public void runSequential() {
    int exitVal = -101;
    try {
      exitVal = tsk.executeTask(ss == null ? null : ss.getHiveHistory());
    } catch (Throwable t) {
      if (tsk.getException() == null) {
        tsk.setException(t);
      }
      LOG.error("Error in executeTask", t);
    }
    result.setExitVal(exitVal);
    if (tsk.getException() != null) {
      result.setTaskError(tsk.getException());
    }
  }
 

Issue Links

• links to: code review