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List:       hadoop-dev
Subject:    [jira] [Resolved] (HADOOP-9782) Datanode daemon cannot be started on OS X
From:       "Arpit Agarwal (JIRA)" <jira () apache ! org>
Date:       2013-07-30 1:57:48
Message-ID: JIRA.12660221.1374958671415.133149.1375149468752 () arcas
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     [ https://issues.apache.org/jira/browse/HADOOP-9782?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel \
]

Arpit Agarwal resolved HADOOP-9782.
-----------------------------------

    Resolution: Fixed
    
> Datanode daemon cannot be started on OS X
> -----------------------------------------
> 
> Key: HADOOP-9782
> URL: https://issues.apache.org/jira/browse/HADOOP-9782
> Project: Hadoop Common
> Issue Type: Bug
> Affects Versions: 3.0.0
> Environment: OS X
> Reporter: Arpit Agarwal
> 
> Datanode fails to start with the following exception on OS X.
> {code}
> java.lang.UnsupportedOperationException: stat is not supported on this platform
> at org.apache.hadoop.fs.Stat.getExecString(Stat.java:91)
> at org.apache.hadoop.util.Shell.runCommand(Shell.java:405)
> at org.apache.hadoop.util.Shell.run(Shell.java:400)
> at org.apache.hadoop.fs.Stat.getFileStatus(Stat.java:65)
> at org.apache.hadoop.fs.RawLocalFileSystem.getFileLinkStatusInternal(RawLocalFileSystem.java:792)
>  at org.apache.hadoop.fs.RawLocalFileSystem.getFileStatus(RawLocalFileSystem.java:523)
>  at org.apache.hadoop.fs.FilterFileSystem.getFileStatus(FilterFileSystem.java:398)
> at org.apache.hadoop.util.DiskChecker.mkdirsWithExistsAndPermissionCheck(DiskChecker.java:129)
>  at org.apache.hadoop.util.DiskChecker.checkDir(DiskChecker.java:146)
> at org.apache.hadoop.hdfs.server.datanode.DataNode$DataNodeDiskChecker.checkDir(DataNode.java:1782)
>  at org.apache.hadoop.hdfs.server.datanode.DataNode.getDataDirsFromURIs(DataNode.java:1829)
>  at org.apache.hadoop.hdfs.server.datanode.DataNode.makeInstance(DataNode.java:1807)
>  at org.apache.hadoop.hdfs.server.datanode.DataNode.instantiateDataNode(DataNode.java:1726)
>  at org.apache.hadoop.hdfs.MiniDFSCluster.startDataNodes(MiniDFSCluster.java:1190)
> at org.apache.hadoop.hdfs.MiniDFSCluster.initMiniDFSCluster(MiniDFSCluster.java:665)
>  at org.apache.hadoop.hdfs.MiniDFSCluster.<init>(MiniDFSCluster.java:334)
> at org.apache.hadoop.hdfs.MiniDFSCluster$Builder.build(MiniDFSCluster.java:316)
> at org.apache.hadoop.mapreduce.v2.TestMRJobs.setup(TestMRJobs.java:112)
> {code}
> It appears to be caused by {{Stat#getExecString}} not supporting OS X.

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