Turn on auto-commit, else we can get races between task insert and update
Turn on auto-commit, else we can get races between task insert and update

umbrant/dist_test,cloudera/dist_test,cloudera/dist_test,xiao-chen/dist_test,xiao-chen/dist_test,umbrant/dist_test,cloudera/dist_test,xiao-chen/dist_test,umbrant/dist_test,xiao-chen/dist_test,umbrant/dist_test,cloudera/dist_test