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From "Sanjay Dahiya (JIRA)" <j...@apache.org>
Subject [jira] Created: (HADOOP-528) Some hadoop distcp task fails with dfs.client.buffer.dir not found error while the property exists.
Date Wed, 13 Sep 2006 12:19:22 GMT
Some hadoop distcp task fails with dfs.client.buffer.dir not found error while the property
exists.
---------------------------------------------------------------------------------------------------

                 Key: HADOOP-528
                 URL: http://issues.apache.org/jira/browse/HADOOP-528
             Project: Hadoop
          Issue Type: Bug
          Components: mapred
    Affects Versions: 0.6.0
            Reporter: Sanjay Dahiya
             Fix For: 0.7.0


On some nodes hadoop distcp fails with folowing error. The property dfs.client.buffer.dir
is defined in hadoop-site.xml and the corresponding directory is also created on the node
by framework. Same configuration works on all other nodes. 

It could be a timing issue where someone is trying to read the dir before its created on local
disk, I am not sure of the cause. 

java.io.IOException: No valid local directories in property: dfs.client.buffer.dir at org.apache.hadoop.conf.Configuration.getFile(Configuration.java:405)
at org.apache.hadoop.dfs.DFSClient$DFSOutputStream.newBackupFile(DFSClient.java:780) at org.apache.hadoop.dfs.DFSClient$DFSOutputStream.(DFSClient.java:770)
at org.apache.hadoop.dfs.DFSClient.create(DFSClient.java:276) at org.apache.hadoop.dfs.DistributedFileSystem.createRaw(DistributedFileSystem.java:104)
at org.apache.hadoop.fs.FSDataOutputStream$Summer.(FSDataOutputStream.java:56) at org.apache.hadoop.fs.FSDataOutputStream$Summer.(FSDataOutputStream.java:45)
at org.apache.hadoop.fs.FSDataOutputStream.(FSDataOutputStream.java:146) at org.apache.hadoop.fs.FileSystem.create(FileSystem.java:270)
at org.apache.hadoop.fs.FileSystem.create(FileSystem.java:177) at org.apache.hadoop.util.CopyFiles$DFSCopyFilesMapper.copy(CopyFiles.java:186)
at org.apache.hadoop.util.CopyFiles$DFSCopyFilesMapper.map(CopyFiles.java:391) at org.apache.hadoop.mapred.MapRunner.run(MapRunner.java:46)
at org.apache.hadoop.mapred.MapTask.run(MapTask.java:210) at org.apache.hadoop.mapred.TaskTracker$Child.main(TaskTracker.java:1066)

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