> Your local storage should get used for MR. Use Lustre via file:// (LocalFileSystem, iirc)
> instead of HDFS via hdfs:// (DistributedFileSystem, irrc) as the default file system type.
If Lustre has integrated checksums, you'll want to use the
RawLocalFileSystem instead of LocalFileSystem. You'll want to make it
fs.raw.impl = org.apache.hadoop.fs.RawLocalFileSystem
so that urls like raw:///my/path won't go through the Hadoop checksum code.