Hi, I have some questions about running hadoop on top of Mesos, please help me. 1. when a tasktracker is launched, if n cpu core are allocated to it, it can only launch n-1 map tasks. Could someone tell me why? And, if I want to run map-only job, what should I do to run n map tasks on a n cpu resource offer? 2. After a tasktracker is launched, in what condition it's status will update to FINISHED? In my cluster, sometimes it will never end until I restart the jobtracker. Sometimes it will end if there is no task or job in jobtracker to run. 3. How to use DRF with weight? I run two frameworks on mesos, and I want to give them different proportion of resources.
Please help me! Thank you very much!
