Hi Miyakawa, I don't think any tasks that were reassigned to a different node due a node failure would be dynamically assigned back to the original node that failed when that node comes back up again.
I haven't observed this, but take this with a grain of salt as I am a bit of a newbie at Storm myself. Cheers, Kosala. On Mon, Jan 5, 2015 at 9:04 PM, Miyakawa Takeshi <[email protected]> wrote: > Hi, i am new to storm and i met a problem with tasks reassigning when > a worker node downs and recover. > > worker node 1-5 running my cluster. > i submit a topology to my cluster, and nimbus assign some task to node 1. > when node 1 is down (whole machine level), supervisor and all worker > processes down too, > tasks assigned to node 1 are reassign to other nodes. it's OK. > > but, when node 1 reboot and supervisor has start, tasks (reassign to > other nodes) return to node 1! > > i don't want to such returning. > > so, i have two questions, > > Q1. such returning is proper behavior to Apache Storm? > > Q2. if answer of Q1 is yes, does exist some ways to prevent such returning? > > i am a Japanese and poor at English, sorry. > > i use Apache Storm 0.9.1 now. >
