El 20/10/2013 19:34, "Howard W. Smith, Jr." <smithh032...@gmail.com> escribió: > > so, db server is on a separate machine/server on the network, and each EAR > is referencing the (one) db server via IP address? >
Yes 2 tomee instances each in separete server point to a third server that only serve as db server. Thats why y have clustering only in webapps and not in db. > also, do you have an embedded db server (running inside of tomee and using > tomcat jdbc pooling) or network db server/engine? > > I use tomcat jdbc pooling (tomee with defined connections in tomee.xml) > On Sun, Oct 20, 2013 at 5:32 PM, José Luis Cetina <maxtorz...@gmail.com >wrote: > > > Ear with all my apps in each server (2 server each with their own ear) then > > each server insert/read in another unique db server. > > El 20/10/2013 16:09, "Howard W. Smith, Jr." <smithh032...@gmail.com> > > escribió: > > > > > Hmmm, i thought you said that you have EAR on one server and database on > > > separate server. are you running 2 tomee on same server; one tomee = EAR, > > > another tomee = database? > > > > > > > > > > > > On Sun, Oct 20, 2013 at 11:52 AM, José Luis Cetina < maxtorz...@gmail.com > > > >wrote: > > > > > > > By the way im not using remote calls. All my apps are in the same ear > > > with > > > > this i can inject my ejb local interface for calling methods in ejb. > > > > El 20/10/2013 07:49, "Howard W. Smith, Jr." <smithh032...@gmail.com> > > > > escribió: > > > > > > > > > just remembered-and-revised 2nd question, below... > > > > > > > > > > On Sun, Oct 20, 2013 at 8:35 AM, Howard W. Smith, Jr. < > > > > > smithh032...@gmail.com> wrote: > > > > > > > > > > > > > > > > > On Sun, Oct 20, 2013 at 8:17 AM, Mark Struberg < strub...@yahoo.de> > > > > > wrote: > > > > > > > > > > > >> This can also be very helpful to 'scale out' in case you need > > > > > performance: > > > > > >> > > > > > >> All write stuff is only performed on the master node, but > > expensive > > > > > >> queries/searches might be performed on the n replication nodes. Of > > > > > course > > > > > >> this needs a special handling in your app, but allows to move the > > > > > expensive > > > > > >> queries away from your primary node. > > > > > >> > > > > > > > > > > > > hmmm, had a question or two, or seeking clarification (or a bit > > more > > > > > > details or even a reference to a blog/article/document). > > > > > > > > > > > > 1. scale-out usually mean different physical servers? scaling out > > > > > multiple > > > > > > databases on one physical server, usually (or I would assume) means > > > > that > > > > > > the hard drive becomes the bottleneck, if hard drive contain > > multiple > > > > > > databases. right? > > > > > > > > > > > > 2. this needs special handling in your app? can you please clarify? > > > > > > > > > > > > > > > > > thanks! > > > > > > > > > > > > > >
