Monthly Archives: December 2009

JBoss MQ Problems with JMS – User: null is NOT authenticated

If you ever come across the pesky error Message “User: null is NOT authenticated”, repeated every 20 sec or so, it’s a sure bet your login.conf does not match your default-ds entries. The two files you’ll want to check are: … Continue reading

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Setting up Hadoop on Windows Vista

Now usually you’ll want to set up hadoop on a UNIX variant like Linux, Solaris or even Mac OS X. For one, hadoop DFS is so close to UNIX type systems in it’s usage, running it on Windows feels a … Continue reading

Posted in Distributed Computing | 9 Comments