I would stick to MaaS. We already have service discovery and scaling built into MaaS so we really don't have a need for features that Twill offers. I think had we known that Twill existed a few years ago we would have considered it, but given where we are today I don't see a reason to switch.
Thanks, James 18.04.2017, 12:30, "Nick Allen" <n...@nickallen.org>: >> Can Twill handle long-running applications? > > I did see this mentioned in the slide deck for "Big Data North America > 2016" around slide 33 or so. The deck is referenced from their home page. > If we blindly trust the slide deck, then yes, it does support this. :) > > On Tue, Apr 18, 2017 at 3:12 PM, Casey Stella <ceste...@gmail.com> wrote: > >> Some things to look for that address some of the complexities within MaaS: >> >> - Can Twill handle long-running applications? >> - Does Twill provide any sort of name service abstraction or somesuch >> that lets us communicate with the app master after app deployment? >> - Does Twill provide any mechanism for impersonation (i.e. we can run >> the MaaS twill app as metron, but submit and run models as $user)? >> >> On Tue, Apr 18, 2017 at 1:50 PM, Nick Allen <n...@nickallen.org> wrote: >> >> > I ran across the Apache Twill [1] project recently whose goal is to >> reduce >> > the complexity of developing distributed applications that run on YARN. >> My >> > first thought is that it might offer additional capabilities and/or >> > simplify our current MaaS implementation. >> > >> > Here are a list of features provided by Twill that I think might be >> useful >> > for MaaS. >> > >> > - Service discovery >> > - Elastic scaling >> > - High Availability >> > - Placement policies - Which rack/host should the model run on? >> > - Security - Kerberos ticket refresh? >> > >> > Just wanted to float the thought in the community and see if anyone has >> > experience with Twill. I need to do some more research myself. >> > >> > [1] http://twill.apache.org/ >> > ------------------- Thank you, James Sirota PPMC- Apache Metron (Incubating) jsirota AT apache DOT org
