* Maybe have a look at the DefaultScheduler there as well, if you're just trying to get things building and off the ground ( https://github.com/mesosphere/dcos-commons/blob/master/sdk/scheduler/src/main/java/com/mesosphere/sdk/scheduler/DefaultScheduler.java#L53 ).
On Wed, Jul 5, 2017 at 9:03 AM Gabriel Hartmann <[email protected]> wrote: > You may register in multiple roles simultaneously. Register with the > MULTI_ROLE capability ( > https://github.com/apache/mesos/blob/master/include/mesos/mesos.proto#L345). > Our frameworks all register with a role, but never the role '*'. We get > Offers from all agents that don't have statically partitioned resources and > do dynamic reservation into one of our registered roles. I don't know the > purpose or goals of your project, but some example Java based frameworks > are available here: https://github.com/mesosphere/dcos-commons. > > We use multiple roles when appropriate here: > https://github.com/mesosphere/dcos-commons/blob/master/sdk/scheduler/src/main/java/com/mesosphere/sdk/specification/DefaultService.java#L200 > > Maybe have a look at the DefaultScheduler for an implementation of a look > at the DefaultScheduler there as well, if you're just trying to get things > building and off the ground ( > https://github.com/mesosphere/dcos-commons/blob/master/sdk/scheduler/src/main/java/com/mesosphere/sdk/scheduler/DefaultScheduler.java#L53 > ). > > > > On Wed, Jul 5, 2017 at 3:13 AM James Peach <[email protected]> wrote: > >> >> > On Jul 5, 2017, at 2:39 AM, Thodoris Zois <[email protected]> wrote: >> > >> > Ok, probably you are right but what you don’t understand is that i am a >> completely newbie and i see such systems for the first time. It’s about a >> university project that i am working on in order to get my bachelor degree. >> I don’t really know the proper way to express what i want to like you do. I >> don’t know how to connect 2 frameworks or something, i don’t even know how >> to make my own framework and compile it with the dependencies that Mesos >> needs. I am just writting on TestFramework.java and TestExecutor.java and >> that’s all. The reason that i want to run everything from the same >> framework (instance) is because keep a TreeMap with some info that i don’t >> want to lose if i terminate the Schedulers driver. So if i start up a new >> framework, TreeMap is gone. Forget about the tasks, i can use the same >> TestExecutor.java for every scheduler. >> >> Note that you can start multiple Scheduler drivers within the same >> server. Each one can register with Mesos as a separate framework. >> >> > What i want to achieve is to get offers from a specific agent with role >> “SB” and run 10 tasks (i give also to my Framework role “SB”), then i store >> those information (which are actually TaskInfo in Schedulers TreeMap). >> After that i would like to change the role of my Framework to “*(default)”. >> Then i will get offer from an agent that has the default role and i will >> still have the info in my TreeMap because scheduler instance didn’t stop. >> >> If you start multiple Scheduler drivers, they can all share a TreeMap >> because they are running in the same Java process. >> >> > That’s all. My problem is that i don’t know how to change the role of >> the Framework without losing that TreeMap, and also how to set it with >> version 1.3.0. >> > >> > Hope that everybody understands now…. >> > Thank you, and i am really sorry for the spam >> > >> > >> >> On 5 Jul 2017, at 12:24, James Peach <[email protected]> wrote: >> >> >> >> >> >>> On Jul 5, 2017, at 12:54 AM, Thodoris Zois <[email protected]> wrote: >> >>> >> >>> Hi, >> >>> >> >>> No, i would like my framework to be offered resources from agent with >> role (e.g: thz) and after running the specific tasks change its role to (*) >> in order to get offers from different agents, but it will run the same >> tasks because i am never terminating the scheduler driver (that’s what i >> want to). >> >> >> >> As I suggested on Slack, I still think the most obvious way to >> implement this is to connect 2 frameworks, 1 for each role. Just >> co-ordinate internally to accept the offers you want in the right sequence. >> From your description, there's no requirement for this to be done in 1 >> framework. >> >> >> >> I don't really follow what you mean by "run the same tasks". You can >> run new instances of the same task (from whatever framework you like); you >> can also send new tasks to an existing executor (from the same framework). >> >> >> >>> Don’t try to find logic, it’s not for a company or something :) >> >> >> >> I think that for people to help you, they need to be able to >> understand the logic of what you want to achieve and why :) >> >> >> >>> >> >>> Thank you, >> >>> Thodoris >> >>> >> >>>> On 5 Jul 2017, at 05:36, Jay Guo <[email protected]> wrote: >> >>>> >> >>>> Hi Thodoris, >> >>>> >> >>>> If I understand correctly, you would like your framework to receive >> offers from both 'role' and '*', so resources reserved to 'role' on >> particular agent could be reliably supplied to the framework? Isn't it >> sufficient to start your framework with multiple roles, 'role' & '*'? You >> need to enable the capability. >> >>>> >> >>>> - J >> >>>> >> >>>> On Wed, Jul 5, 2017 at 7:28 AM, Thodoris Zois <[email protected]> >> wrote: >> >>>> I have built a Framework in Java that is running certain tasks. I >> would like to run those tasks on a specific agent. I have set a role to the >> Framework and used flags upon starting of the agent. Till here everything >> is good. When framework has run tasks successfully i am not terminating it. >> I would like to change its role to default (*) and get offered resources >> from master that correspond to that role and it will run again the same >> amount of tasks (and the same tasks) because i never terminated (and i >> don't want to terminate its instance because i keep some mesos metrics to a >> static TreeMap). That's all.. I just wanted somebody to explain me exactly >> how it works and what i have to do because everything i have tried today >> fails, and seems i can't find useful info on the Internet about this. >> >>>> >> >>>> Thank you! >> >>>> >> >>>> On 4 Jul 2017, at 21:00, Michael Park <[email protected]> wrote: >> >>>> >> >>>>> What is it that you need help with? >> >>>>> >> >>>>> On Tue, Jul 4, 2017 at 11:12 AM Thodoris Zois <[email protected]> >> wrote: >> >>>>> Hello list, >> >>>>> >> >>>>> Is anybody available to help me with the new feature of 1.3.0 >> version, that a framework can modify its role? >> >>>>> >> >>>>> Thank you >> >>>> >> >>> >> >> >> > >> >>
