I'm not quite getting it. > org.apache.mahout.math.CardinalityException: Required cardinality > 2147483647 but got 7
In the exception message the 2147483647 = Integer.MAX_VALUE, while the 7 is what has been passed as --numCols to DistributedLanczosSolver. It seems a little strange to pass 2147483647 as numCols. haha. Not to mention the fact that doing so gives a nice OutOfMemoryError.
