[MAPREDUCE-709] node health check script does not display the correct message on timeout

• Type: Bug
• Status: Closed
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 0.21.0
• Fix Version/s: 0.21.0
• Hadoop Flags: Reviewed
• Assignee: Sreekanth Ramakrishnan
• Reporter: Ramya Sunil
• Created: 06/Jul/09 09:39
• Updated: 24/Aug/10 21:14
• Resolved: 07/Jul/09 07:50

Description

When the node health check script takes more than "mapred.healthChecker.script.timeout" to return, it should display a timeout message. Instead it displays the full stacktrace as below:

java.io.IOException: Stream closed at java.io.BufferedInputStream.getBufIfOpen(BufferedInputStream.java:145) 
at java.io.BufferedInputStream.read(BufferedInputStream.java:308) 
at sun.nio.cs.StreamDecoder.readBytes(StreamDecoder.java:264) 
at sun.nio.cs.StreamDecoder.implRead(StreamDecoder.java:306) 
at sun.nio.cs.StreamDecoder.read(StreamDecoder.java:158) 
at java.io.InputStreamReader.read(InputStreamReader.java:167) 
at java.io.BufferedReader.fill(BufferedReader.java:136) 
at java.io.BufferedReader.readLine(BufferedReader.java:299) 
at java.io.BufferedReader.readLine(BufferedReader.java:362) 
at org.apache.hadoop.util.Shell.runCommand(Shell.java:202) 
at org.apache.hadoop.util.Shell.run(Shell.java:145) 
at org.apache.hadoop.util.Shell$ShellCommandExecutor.execute(Shell.java:338) 
at org.apache.hadoop.mapred.NodeHealthCheckerService$NodeHealthMonitorExecutor.run(NodeHealthCheckerService.java:119) 
at java.util.TimerThread.mainLoop(Timer.java:512) 
at java.util.TimerThread.run(Timer.java:462) 

Also the "mapred.healthChecker.script.timeout" is not being reflected in the job.xml. It always picks up the default value. It is just an UI issue.