DFs copyFromLocal fails with NullPointerException for a single file
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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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