The way it works is as follows: Scheduler launches "tasks". A task has an "executor id" (optional) attached to it. When a slave gets a task, it launches an executor if an executor with that "executor id" is not running. All subsequent tasks tagged with the same "executor id" are just passed on to the running executor.
Typically executors send TASK_STARTING or TASK_RUNNING updates when a task gets launched. This is the signal that could be used by the schedulers to know that a task (and its corresponding executor) has launched. HTH, On Thu, Sep 26, 2013 at 12:03 PM, Vladimir Vivien <[email protected] > wrote: > Hi. New to Mesos and still trying to wrap my head around its concept. > > Question: > When an executor is launched by Mesos, how does the Scheduler know about > the Executor it just launched and vise versa ? It appears that the slave > launches an OS process, but I am unclear how the coordination is done > between the running OS process and mesos. > -- > Vladimir Vivien >
