When I try to use the following statement explain -brief A; I got the following error 2013-02-06 19:18:34,250 [Low Memory Detector] INFO org.apache.pig.impl.util.SpillableMemoryManager - first memory handler call - Collection threshold init = 526123008(513792K) used = 349984528(341781K) committed = 699072512(682688K) max = 699072512(682688K) 2013-02-06 19:18:34,942 [main] ERROR org.apache.pig.tools.grunt.Grunt - ERROR 2998: Unhandled internal error. Java heap space I tried to increase the heap space size by adding option -Dmapred.child.java.opts=-Xmx4096m but it didn't work. Any idea? Thanks. Dan
