Hi, @Povilas It is possible to dynamic reserve unreserved resources on those agents.
On Fri, Jan 13, 2017 at 2:47 PM, Povilas Versockas <[email protected]> wrote: > Hi, > > Maybe someone can help me with a problem I'm having. Short version of the > question is: > Is it possible to use dynamic reservation on statically reserved Mesos > agents? > > The current situation is that we have Mesos cluster which runs many > frameworks (aurora, spark, cassandra) and we are developing a custom > framework for stateful tasks. Our framework manages stateful tasks for many > users. Currently we statically reserved our hardware which has good disks > only to be used by our framework (via --resources flag on Mesos Agents). > > The problem we are facing is that if one stateful task fails we would like > to relaunch it on the same host with the same port, cpu, disk and memory. > With dynamic reservations we would put a label with task id on a > reservation and on failure would just simply reuse the reserved offer. > On the other hand with statically reserved Mesos agents we cannot put any > labels and so we cannot distinguish offers which should have been reserved > for a task and a new offer. > This leaves us in the situation that if one stateful task fails and there > are new stateful tasks, the new tasks can be scheduled on failed task's > Mesos agent, filling it up and taking it's port, cpu and memory. > > > -- > Regards > Povilas Versockas > -- Best Regards, Haosdent Huang
