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From "Sanjay Dahiya (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HADOOP-612) DFs copyFromLocal fails with NullPointerException for a single file
Date Mon, 30 Oct 2006 08:46:17 GMT
    [ http://issues.apache.org/jira/browse/HADOOP-612?page=comments#action_12445519 ] 
            
Sanjay Dahiya commented on HADOOP-612:
--------------------------------------

sorry for late response, missed it somehow. 
I will cross check and get back soon. 

> DFs copyFromLocal fails with NullPointerException for a single file
> -------------------------------------------------------------------
>
>                 Key: HADOOP-612
>                 URL: http://issues.apache.org/jira/browse/HADOOP-612
>             Project: Hadoop
>          Issue Type: Bug
>          Components: dfs
>    Affects Versions: 0.7.1
>            Reporter: Sanjay Dahiya
>            Priority: Blocker
>
> DFS copyFromLocal fails with NullPointerException when copying a single file to DFS.
Copying a directory works. 
>   public File getFile(String dirsProp, String path)
>     throws IOException {
>     String[] dirs = getStrings(dirsProp);                     <===== returns null
for a single file
>     int hashCode = path.hashCode();
>     for (int i = 0; i < dirs.length; i++) {  // try each local dir               
     <==== Throws NullPointerException
>       int index = (hashCode+i & Integer.MAX_VALUE) % dirs.length;
>       File file = new File(dirs[index], path);
>       File dir = file.getParentFile();
>       if (dir.exists() || dir.mkdirs()) {
>         return file;
>       }
>     }
>     throw new IOException("No valid local directories in property: "+dirsProp);
>   }
> Exception in thread "main" java.lang.NullPointerException
>         at org.apache.hadoop.conf.Configuration.getFile(Configuration.java:397)
>         at org.apache.hadoop.dfs.DFSClient$DFSOutputStream.newBackupFile(DFSClient.java:913)
>         at org.apache.hadoop.dfs.DFSClient$DFSOutputStream.<init>(DFSClient.java:903)
>         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$Summer.<init>(FSDataOutputStream.java:56)
>         at org.apache.hadoop.fs.FSDataOutputStream$Summer.<init>(FSDataOutputStream.java:45)
>         at org.apache.hadoop.fs.FSDataOutputStream.<init>(FSDataOutputStream.java:146)
>         at org.apache.hadoop.fs.FileSystem.create(FileSystem.java:271)
>         at org.apache.hadoop.fs.FileSystem.create(FileSystem.java:178)
>         at org.apache.hadoop.fs.FileUtil.copy(FileUtil.java:77)
>         at org.apache.hadoop.dfs.DistributedFileSystem.copyFromLocalFile(DistributedFileSystem.java:186)
>         at org.apache.hadoop.dfs.DFSShell.copyFromLocal(DFSShell.java:45)
>         at org.apache.hadoop.dfs.DFSShell.run(DFSShell.java:516)
>         at org.apache.hadoop.util.ToolBase.doMain(ToolBase.java:187)
>         at org.apache.hadoop.dfs.DFSShell.main(DFSShell.java:570)

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