[HADOOP-9102] winutils task isAlive does not return a non-zero exit code if the requested task is not alive

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 1-win
• Fix Version/s: 1-win
• Component/s: util
• Target Version/s: 1-win
• Hadoop Flags: Reviewed
• Assignee: Chris Nauroth
• Reporter: Chris Nauroth
• Created: 29/Nov/12 00:37
• Updated: 05/Dec/12 05:35
• Resolved: 05/Dec/12 05:35

Description

Work on YARN-233 noted that winutils task isAlive does not return a non-zero exit code if the requested task is not alive. This is inconsistent with the equivalent check on Unix, kill -0, which uses a non-zero exit code to communicate status. By changing winutils task isAlive to return a non-zero exit code, we can make the error handling code on the Java side consistent, avoiding the need for additional if (WINDOWS) checks.

Issue Links

• relates to: YARN-233 YARN support for execution of container on Windows