1) When I cancel hive job with Ctrl C, I noticed that java/hive processes still run on some of my nodes. I shutdown hadfoop, and restarted it, but noticed that 2 or 3 java/hadoop processes were still running on each node. So we went to each node and did a 'killall java' - in some cases I had to do 'killall -9 java'. My question : why is is this happening and what would be recommendations , how to make sure that there is no hadoop / hive processes running after I stopped hadoop with stop-all.sh? PS : The reason that I needed to Ctrl C hive process in a first place was : if I ran hive -e 'select ....", job would finish, result file would be created Iand see 'OK' on a screen for 7 -10 min, before it will actually give me a prompt. Why is this happening ?
