We just upgraded to hadoop 0.20 (from hadoop 0.18), impressively our same hive package kept working against the new hadoop setup.
Since the upgrade every hive starts with only 1 map task though. Even after setting it with eg: set mapred.map.tasks=32; We recompiled our hive setup against hadoop 0.20 and still get the same issue. Any suggestions for something obvious we might have missed? ~Tim.
