This is a known, fixed, Hadoop bug:

  http://issues.apache.org/jira/browse/HADOOP-201

I'm going to release Hadoop 0.2.1 with this and one other patch as soon as Subversion is back up, then upgrade Nutch to use 0.2.1.

Doug

Marko Bauhardt wrote:
Hi all,
i start nutch-0.8-dev (Revision 405738) on distributed filesystem.
If i execute "bin/hadoop dfs -report"  an exception occurs.

java.lang.RuntimeException: java.lang.IllegalAccessException: Class org.apache.hadoop.io.WritableFactories can not access a member of class org.apache.hadoop.dfs.DatanodeInfo with modifiers "public" at org.apache.hadoop.io.WritableFactories.newInstance (WritableFactories.java:49) at org.apache.hadoop.io.ObjectWritable.readObject (ObjectWritable.java:226) at org.apache.hadoop.io.ObjectWritable.readObject (ObjectWritable.java:163) at org.apache.hadoop.io.ObjectWritable.readObject (ObjectWritable.java:211) at org.apache.hadoop.io.ObjectWritable.readFields (ObjectWritable.java:60)
        at org.apache.hadoop.ipc.Client$Connection.run(Client.java:170)
Caused by: java.lang.IllegalAccessException: Class org.apache.hadoop.io.WritableFactories can not access a member of class org.apache.hadoop.dfs.DatanodeInfo with modifiers "public"
        at sun.reflect.Reflection.ensureMemberAccess(Reflection.java: 65)
        at java.lang.Class.newInstance0(Class.java:344)
        at java.lang.Class.newInstance(Class.java:303)
at org.apache.hadoop.io.WritableFactories.newInstance (WritableFactories.java:45)
        ... 5 more

What i doing wrong?


Marko

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