Add support for repeating tasks multiple times
Add support for repeating tasks multiple times

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