[MAPREDUCE-1640] Node health feature fails to blacklist a node if the health check script times out in some cases

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Incomplete
• Component/s: tasktracker
• Assignee: Unassigned
• Reporter: Vinod Kumar Vavilapalli
• Created: 29/Mar/10 08:33
• Updated: 30/Jul/14 17:19
• Resolved: 30/Jul/14 17:19

Description

Node health check feature fails to blacklist a TT if health check script times out. Below are the values that were set:

• mapred.healthChecker.interval=60000
• mapred.healthChecker.script.timeout=6000

And the script was:

#!/bin/bash
echo "start"
sleep 100000
echo "end"