[PIG-2648] MapReduceLauncher squashes unchecked exceptions

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Duplicate
• Component/s: impl
• Assignee: Unassigned
• Reporter: Alex Levenson
• Created: 11/Apr/12 21:46
• Updated: 24/May/17 16:20
• Resolved: 24/May/17 16:20

Description

in:
org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.MapReduceLauncher.JobControlThreadExceptionHandler

jobControlExceptionStackTrace = getStackStraceStr(throwable);
try {	
    jobControlException = getExceptionFromString(jobControlExceptionStackTrace);
} catch (Exception e) {
    String errMsg = "Could not resolve error that occured when launching map reduce job: "
            + jobControlExceptionStackTrace;
    jobControlException = new RuntimeException(errMsg);
}

The catch clause does not chain the original exception, this made tracking down: https://issues.apache.org/jira/browse/PIG-2645 a lot more difficult.

Issue Links

• is part of: PIG-2699 Reduce the number of instances of Load and Store Funcs down to 2+1. It should be 1 in the front-end and 1 in the backend