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https://issues.apache.org/jira/browse/HADOOP-10538?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Arpit Agarwal resolved HADOOP-10538.
------------------------------------
Resolution: Won't Fix
Hadoop is not supported on Cygwin.
Please see [these instructions|https://wiki.apache.org/hadoop/Hadoop2OnWindows]
for how to run Hadoop 2.2+ on Windows natively.
> NumberFormatException happened when hadoop 1.2.1 running on Cygwin
> -------------------------------------------------------------------
>
> Key: HADOOP-10538
> URL: https://issues.apache.org/jira/browse/HADOOP-10538
> Project: Hadoop Common
> Issue Type: Bug
> Affects Versions: 1.2.1
> Environment: OS: windows 7 / Cygwin
> Reporter: peter xie
>
> The TaskTracker always failed to startup when it running on Cygwin. And the
> error info logged in xxx-tasktracker-xxxx.log is :
> 2014-04-21 22:13:51,439 DEBUG org.apache.hadoop.mapred.TaskRunner: putting
> jobToken file name into environment
> D:/hadoop/mapred/local/taskTracker/pxie/jobcache/job_201404212205_0001/jobToken
> 2014-04-21 22:13:51,439 INFO org.apache.hadoop.mapred.JvmManager: Killing
> JVM: jvm_201404212205_0001_m_1895177159
> 2014-04-21 22:13:51,439 WARN org.apache.hadoop.mapred.TaskRunner:
> attempt_201404212205_0001_m_000000_0 : Child Error
> java.lang.NumberFormatException: For input string: ""
> at
> java.lang.NumberFormatException.forInputString(NumberFormatException.java:65)
> at java.lang.Integer.parseInt(Integer.java:504)
> at java.lang.Integer.parseInt(Integer.java:527)
> at
> org.apache.hadoop.mapred.JvmManager$JvmManagerForType$JvmRunner.kill(JvmManager.java:552)
> at
> org.apache.hadoop.mapred.JvmManager$JvmManagerForType.killJvmRunner(JvmManager.java:314)
> at
> org.apache.hadoop.mapred.JvmManager$JvmManagerForType.reapJvm(JvmManager.java:378)
> at
> org.apache.hadoop.mapred.JvmManager$JvmManagerForType.access$000(JvmManager.java:189)
> at org.apache.hadoop.mapred.JvmManager.launchJvm(JvmManager.java:122)
> at
> org.apache.hadoop.mapred.TaskRunner.launchJvmAndWait(TaskRunner.java:292)
> at org.apache.hadoop.mapred.TaskRunner.run(TaskRunner.java:251)
> 2014-04-21 22:13:51,511 DEBUG org.apache.hadoop.ipc.Server: IPC Server
> listener on 59983: disconnecting client 127.0.0.1:60154. Number of active
> connections: 1
> 2014-04-21 22:13:51,531 WARN org.apache.hadoop.fs.FileUtil: Failed to set
> permissions of path:
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