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https://issues.apache.org/jira/browse/MAPREDUCE-4657?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13468817#comment-13468817
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Suresh Srinivas commented on MAPREDUCE-4657:
--------------------------------------------
bq. Thats because I dont want to suppress the log. This would indicate running
with an incompatible version of winutils
I understand that. Why LOG.info and not LOG.warn(). The logs seem like they
should be warning.
bq. There is no log when sysInfo is null. Can you apply the patch to the code
and check again?
I am not sure I understand your comment. Prior to your patch when sysInfo is
null, a null pointer exception happened indicating an error. Now there is no
log? However after closely looking at the code, the method used for getting
sysInfo print LOG.error(). So it should be fine.
> WindowsResourceCalculatorPlugin has NPE
> ---------------------------------------
>
> Key: MAPREDUCE-4657
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-4657
> Project: Hadoop Map/Reduce
> Issue Type: Bug
> Reporter: Bikas Saha
> Assignee: Bikas Saha
> Priority: Minor
> Attachments: MAPREDUCE-4657.branch-1-win.1.patch
>
>
> When Shell command execution is interrupted then
> WindowsResourceCalculatorPlugin has NPE.
> code}
> 2012-08-31 13:01:00,140 ERROR [Thread-771]
> util.WindowsResourceCalculatorPlugin(69): java.io.IOException:
> java.lang.InterruptedException^M
> at org.apache.hadoop.util.Shell.runCommand(Shell.java:424)^M
> at org.apache.hadoop.util.Shell.run(Shell.java:336)^M
> at
> org.apache.hadoop.util.Shell$ShellCommandExecutor.execute(Shell.java:540)^M
> at
> org.apache.hadoop.util.WindowsResourceCalculatorPlugin.getSystemInfoInfoFromShell(WindowsResourceCalculatorPlugin.java:66)^M
> at
> org.apache.hadoop.util.WindowsResourceCalculatorPlugin.refreshIfNeeded(WindowsResourceCalculatorPlugin.java:81)^M
> at
> org.apache.hadoop.util.WindowsResourceCalculatorPlugin.getAvailableVirtualMemorySize(WindowsResourceCalculatorPlugin.java:126)^M
> at
> org.apache.hadoop.mapred.TaskTracker.getAvailableVirtualMemoryOnTT(TaskTracker.java:1933)^M
> at
> org.apache.hadoop.mapred.TaskTracker.transmitHeartBeat(TaskTracker.java:1834)^M
> at
> org.apache.hadoop.mapred.TaskTracker.offerService(TaskTracker.java:1664)^M
> at org.apache.hadoop.mapred.TaskTracker.run(TaskTracker.java:2516)^M
> at
> org.apache.hadoop.mapred.MiniMRCluster$TaskTrackerRunner.run(MiniMRCluster.java:217)^M
> at java.lang.Thread.run(Thread.java:662)^M
> ^M
> 2012-08-31 13:01:00,140 ERROR [Thread-771] mapred.TaskTracker(1766): Caught
> exception: java.lang.NullPointerException^M
> at
> org.apache.hadoop.util.WindowsResourceCalculatorPlugin.refreshIfNeeded(WindowsResourceCalculatorPlugin.java:83)^M
> at
> org.apache.hadoop.util.WindowsResourceCalculatorPlugin.getAvailableVirtualMemorySize(WindowsResourceCalculatorPlugin.java:126)^M
> at
> org.apache.hadoop.mapred.TaskTracker.getAvailableVirtualMemoryOnTT(TaskTracker.java:1933)^M
> at
> org.apache.hadoop.mapred.TaskTracker.transmitHeartBeat(TaskTracker.java:1834)^M
> at
> org.apache.hadoop.mapred.TaskTracker.offerService(TaskTracker.java:1664)^M
> at org.apache.hadoop.mapred.TaskTracker.run(TaskTracker.java:2516)^M
> at
> org.apache.hadoop.mapred.MiniMRCluster$TaskTrackerRunner.run(MiniMRCluster.java:217)^M
> at java.lang.Thread.run(Thread.java:662)^M
> {code}
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