Hi, I'm trying to test out NDFS and I'm having some problems. My set up is straightforward, each of these in their own directory:
namenode: nutch namenode 9100 /tmp/nutch/ndfs/name datanode1: nutch datanode /tmp/nutch/ndfs/data dn1 localhost:9100 datanode2: nutch datanode /tmp/nutch/ndfs/data dn2 localhost:9100 Everything appears to connect properly and running TestClient.java -report shows the datanodes But when I try and write anything to NDFS, even creating a directory, I get the following exception: Exception in thread "main" java.lang.NullPointerException at java.net.Socket.<init>(Socket.java:301) at java.net.Socket.<init>(Socket.java:153) at net.nutch.ndfs.NDFSClient$NDFSOutputStream.nextBlockOutputStream( NDFSClient.java:613) at net.nutch.ndfs.NDFSClient$NDFSOutputStream.<init>(NDFSClient.java:584) at net.nutch.ndfs.NDFSClient.create(NDFSClient.java:72) at net.nutch.fs.NDFSFileSystem.create(NDFSFileSystem.java:48) at net.nutch.fs.NDFSFileSystem.create(NDFSFileSystem.java:43) at net.nutch.io.SequenceFile$Writer.<init>(SequenceFile.java:44) at net.nutch.io.MapFile$Writer.<init>(MapFile.java:75) at net.nutch.db.WebDBWriter.<init>(WebDBWriter.java:1494) at net.nutch.db.WebDBWriter.createWebDB(WebDBWriter.java:1425) >From what I gather, its looking for the datanodes, but is not finding them. Has anyone come across this problem? I'm using Fedora Thanks
