FAQ

I am trying to run GraphLab distributed using files from HDFS as input. However, I am getting screens full of errors

You may need to set the CLASSPATH environment variable. Instead of running:

mpiexec -n N ... graphlab_program ...

Try running

mpiexec -n N ... env CLASSPATH=`hadoop classpath` graphlab_program ...

I am trying to run GraphLab distributed, but it seems to be failing to find my graph input files. I am not using HDFS.

You need to make sure that all machines have access to the graph files at exactly the same paths. i.e. Either you need to have an NFS file share, or a distributed file system, or you need to copy all graph files to all machines.