Thank you all for your responses. I look forward to event subscription. :)
-Paul On Wed, Sep 23, 2015 at 2:23 PM, Joris Van Remoortere <[email protected]> wrote: > There is a plan for event subscription, but it is still in the early > design phase. > > In 0.25 we are adding slave exit hooks: MESOS-3015 > > This will allow you to generate whatever events you like based on removal > of a slave. This is your best bet in terms of an immediate solution :-) > @Kapil and @Niklas have worked on this hook. > > On Wed, Sep 23, 2015 at 1:29 PM, Benjamin Mahler < > [email protected]> wrote: > >> I believe some of the contributors from Mesosphere have been thinking >> about it, but not sure on the plans. I'll let them reply here. >> >> On Wed, Sep 16, 2015 at 11:11 AM, Paul Bell <[email protected]> wrote: >> >>> Thank you, Benjamin. >>> >>> So, I could periodically request the metrics endpoint, or stream the >>> logs (maybe via mesos.cli; or SSH)? What, roughly, does the "agent removed" >>> message look like in the logs? >>> >>> Are there plans to offer a mechanism for event subscription? >>> >>> Cordially, >>> >>> Paul >>> >>> >>> >>> On Wed, Sep 16, 2015 at 1:30 PM, Benjamin Mahler < >>> [email protected]> wrote: >>> >>>> You can detect when we remove an agent due to health check failures via >>>> the metrics endpoint, but these are counters that are better used for >>>> alerting / dashboards for visibility. If you need to know which agents, you >>>> can also consume the logs as a stop-gap solution, until we offer a >>>> mechanism for subscribing to cluster events. >>>> >>>> On Wed, Sep 16, 2015 at 10:11 AM, Paul Bell <[email protected]> wrote: >>>> >>>>> Hi All, >>>>> >>>>> I am led to believe that, unlike Marathon, Mesos doesn't (yet?) offer >>>>> a subscribable event bus. >>>>> >>>>> So I am wondering if there's a best practices way of determining if a >>>>> slave node has crashed. By "crashed" I mean something like the power plug >>>>> got yanked, or anything that would cause Mesos to stop talking to the >>>>> slave >>>>> node. >>>>> >>>>> I suppose such information would be recorded in /var/log/mesos. >>>>> >>>>> Interested to learn how best to detect this. >>>>> >>>>> Thank you. >>>>> >>>>> -Paul >>>>> >>>> >>>> >>> >> >
