-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Edwin,
On 3/8/16 11:46 AM, Edwin Quijada wrote: > > > ________________________________________ From: Christopher Schultz > <ch...@christopherschultz.net> Sent: Tuesday, March 8, 2016 3:48 > PM To: Tomcat Users List Subject: Re: Advice on Cluster in one > machine > > -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 > > Edwin, > > On 3/8/16 8:19 AM, Edwin Quijada wrote: >> I am new using Tomcat so I have a question about performance. I >> have installed a cluster with 2 tomcats and apache webserver >> like proxy in front of Tomcat cluster but this whole thing is in >> one server, somebody tell me that is not useful beacuse is in the >> same server that is better give more resources to one tomcat and >> not split the resources in two. > > Performance-wise, your friend is right: a two-node cluster on one > machine is going to use more resources than a single node on that > machin e. > > However, running two cluster nodes on a single server isn't a > completely stupid idea. If you want to have zero-downtime > deployments, you can take one node down, upgrade it, then switch. > So there's value there. As for fault-tolerance, the single point of > failure is the whole machine: if that server isn't available, no > services are available . > > That's why people usually have a hardware load balancer (fairly > simple, fairly reliable) and several web/app servers, just in case > one of them fails. If one node fails, the service is still > available. > >> Somebody here can give any advice about this configuration what >> do you think about this ? In this server I have websockets in >> cluster and I am having problems with websockets in cluster > > Clustering and websockets have little to do with one another, > since the connection goes to one node and the cluster really just > manages things like sessions (which are orthogonal to connections, > protocols, etc.). > > OK, so if I want to run my app like myserver.com I can use apache > like reverse proxy to do this and still working with websockets , > I want to do this something like this > > Apache -> Tomcat -> DB > > but the websocket still works ? I'm not sure how well websockets work through httpd right now. I'm certainly no expert on websocket, so someone else will have to give you better information. Note that the database is also not relevant. But in general, yes, you can use httpd as a reverse proxy for multiple Tomcats. - -chris -----BEGIN PGP SIGNATURE----- Comment: GPGTools - http://gpgtools.org Comment: Using GnuPG with Thunderbird - http://www.enigmail.net/ iEYEARECAAYFAlbfA74ACgkQ9CaO5/Lv0PDVUQCgw6fUafLXMoCKsEGW5ucUxgjx gfEAoKJHYBWtn7MAdhGYlllsgcSZeuah =YX3V -----END PGP SIGNATURE----- --------------------------------------------------------------------- To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
