Setting container on task is the right thing to do for your use case. Each task is run under a different executor and hence isolated.
@vinodkone > On Aug 4, 2017, at 6:10 AM, Jan Schlicht <[email protected]> wrote: > > It depends on the executor how the `TaskInfo` is used. The default executor > (i.e. `TaskInfo.executor` isn't set) will start a container per task -- as > documented here: > http://mesos.apache.org/documentation/latest/app-framework-development-guide/. > > Cheers, > Jan > >> On Fri, Aug 4, 2017 at 2:55 PM, Thodoris Zois <[email protected]> wrote: >> Hello Jan, >> >> You are completely right.. If i set the docker image at taskInfo it is >> running properly. The reason that i wanted to add the docker image as an >> executor is because i would like to have one task per container. If i >> setContainer at taskInfo every task is going to run under the same >> container? Or each task will have its own container? I would like to provide >> an isolation between docker containers and tasks to my framework. >> >> Thank you, >> Thodoris >> >>> On 4 Aug 2017, at 15:50, Jan Schlicht <[email protected]> wrote: >>> >>> Hey Thodoris, >>> >>> when you set a container for the executor (the `ExecutorInfo.container` >>> field), this container is expected to provide an executor, i.e. connects >>> and communicates with the Mesos agent that started the executor to run a >>> task. `echo hello world` doesn't do this, that's why you see the >>> EXECUTOR_TERMINATED message. >>> >>> Cheers >>> Jan >>> >>>> On Fri, Aug 4, 2017 at 1:44 PM, Thodoris Zois <[email protected]> wrote: >>>> Hello list, >>>> >>>> I am developing my own framework and i got a problem with docker images. >>>> >>>> I am creating a task that will have assigned a docker image as executor. >>>> The purpose of doing this is because i want to have one task per docker >>>> container. I have set a TaskInfo with executor a `docker image`. In the >>>> image i am just running `echo hello world!`. Every task that uses >>>> `Executor docker image` is in state `TASK_FAILED with reason >>>> EXECUTOR_TERMINATED -> Container terminated`. I don't get any status >>>> update message `TASK_RUNNING` and the image is running properly. Even at >>>> the output of stdout i get the message `Hello world!`. I think that the >>>> task is not getting in my container. But it gets the proper executorID. >>>> >>>> This is my master log: https://pastebin.com/5yB7KR28 >>>> <https://pastebin.com/5yB7KR28> >>>> >>>> This is my slave log: https://pastebin.com/sKPz949J >>>> <https://pastebin.com/sKPz949J> >>>> >>>> And this is my protobuf: https://pastebin.com/YG3J7Fi0 >>>> <https://pastebin.com/YG3J7Fi0> >>>> >>>> >>>> Any help would be appreciated! >>>> >>>> Thank you, >>>> Thodoris >>>> >>>> >>> >>> >>> >>> -- >>> Jan Schlicht >>> Distributed Systems Engineer, Mesosphere >> > > > > -- > Jan Schlicht > Distributed Systems Engineer, Mesosphere
