Just to share experiences, I tried to use VMWare setting up a 2-node cluster. The errors showing up were java.io.* related errors. There was still a 20% chance finishing the job, such as sample Grep, randomwriter, sort.
Best Regards Richard Yang [EMAIL PROTECTED] [EMAIL PROTECTED] -----Original Message----- From: Maximilian Schöfmann [mailto:[EMAIL PROTECTED] Sent: Wednesday, March 21, 2007 8:30 AM To: [email protected] Subject: Re: Grep example won't terminate on "virtual" cluster (using xen) > > I was playing around with the latest hadoop (0.12.1) on a virtual > > "cluster" > > (4 nodes, one as namenode and jobtracker) using Xen. Each node runs the > > current Xen kernel (2.6.16.33-xen) with 192 MB Ram and JDK 1.5.0_11. > > Running the grep example in standalone mode works fine, but it won't > > terminate in distributed mode: > > > > Maybe 192MB of RAM for each nodes is not enough ? Memory usage is well below 110 MB for each node. I've also tried using a completely virtually switched network -- with the same results..
