node health check script does not display the correct message on timeout
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Key: MAPREDUCE-709
URL: https://issues.apache.org/jira/browse/MAPREDUCE-709
Project: Hadoop Map/Reduce
Issue Type: Bug
Affects Versions: 0.21.0
Reporter: Ramya R
Priority: Minor
Fix For: 0.21.0
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:
{noformat}
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)
{noformat}
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.
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