Thanks Loannis for the detailed explanation. Ming, can you comment on which approach you planned to take.
Helix supports both jmx as well as REST api's to fetch cluster data. JMX metrics are exposed by the controller. but only the current active controller will have these metrics up to date. So there should be one step to first get the current active controller and then access the right controller. We might need to add more mbeans as needed. REST api is supported by helix-webapp-admin. So we can use the REST api to access the data. Ming, what are you planning to use to retrieve the data. I think REST end point might be a good option. Another question: Since hawt plugins are more of a client side implementation, then we will need some library to parse the data on the client side and also understand what the data means. This brings back the question if its actually better to use play framework that way we can work with Helix model objects directly without having to parse the data? Thoughts ? thanks, Kishore G On Wed, Mar 27, 2013 at 4:48 AM, Ming Fang <[email protected]> wrote: > Kishore > > I planned on sharing the dashboard. > > --ming > > On Mar 25, 2013, at 5:14 PM, kishore g <[email protected]> wrote: > > > Hi Ming/Loannis, > > > > We have some kind of dashboard ( though not great) working with play > > framework and were thinking of generalizing it. Hawt.io seems to be > popular > > as well. I tried reading the website and found that we would have to > write > > a hawt.io plugin which gets data from jmx, rest end point etc. > > > > How ever i have few questions > > 1. Plugin seems to run on the client (javascript), can we write some java > > code on server side to access data from zookeeper ? > > 2. Is JMX the only way to expose data? > > > > > > None of us know much about the UI technologies and play framework is kind > > of appropriate for us since most of us code in java. Can you please share > > your experience on hawt and what benefits would we get if we use > > hawt.ioinstead of play framework. > > > > Also Ming, the dashboard that you planning to build, will be mainly for > > your application or something that can be used by others ? > > > > In the end we want to provide a basic dashboard that shows the cluster > data > > and allow simple admin operations. At the same time, it must be easy for > > users to customize/add additional features without having to rewrite it > > again. I think the latter feature is something that might make us use > hawt > > over play framework. What do you think? > > > > thanks, > > Kishore G > > > > On Fri, Mar 22, 2013 at 10:40 AM, Ioannis Canellos <[email protected] > >wrote: > > > >> +1 for hawtio. It uses angularjs, its pluggable and its hawt! > >> > >> > >> -- > >> *Ioannis Canellos* > >> * > >> > >> ** > >> Blog: http://iocanel.blogspot.com > >> ** > >> Twitter: iocanel > >> * > >> > >
