On Tue, Aug 6, 2013 at 3:22 PM, Bob DeRemer <bob.dere...@thingworx.com>wrote:
> > > > -----Original Message----- > > From: Mark Thomas [mailto:ma...@apache.org] > > Sent: Tuesday, August 06, 2013 3:59 AM > > To: Tomcat Users List > > Subject: Re: Is the current Tomcat 7 servlet websocket implementation > being > > deprecated? > > > > On 06/08/2013 03:54, Bob DeRemer wrote: > > > I've seen some mention on the user and dev mailing lists that the > > > current servlet-based websocket implementation will be deprecated due > > > to the implementation of the JSR-356. We are currently implementing a > > > Tomcat 7-based websocket server implementation that we hoped could > > > scale up to at least 50K concurrent connections [or more], but are > > > concerned if there are any known issues and/or limitations with the > > > websocket implementation in Tomcat 7. > > > > No known issues or limitations but the JSR-356 will be ported to 7.0.x > and the > > current WebSocket implementation deprecated shortly (hopefully in the > next > > few weeks). > > > > > We are currently trying to test how high Tomcat 7 will scale with > > > regards to the maximum number of concurrent websocket connections, but > > > have already hit some problems with only 200+ concurrent connections. > > > Perhaps it's our multi-threaded client, or Tomcat configuration - not > > > sure at this point. We have the Tomcat Connector configured with > > > maxConnections=50000 and maxThreads=1000, so 200 concurrent > > > connections shouldn't be a problem. > > > > It should scale but won't scale as well as the JSR-356 implementation is > the > > current Tomcat 7 implementation is blocking within a frame. > > > > > If anyone could elaborate on the Tomcat 7 servlet websocket > > > implementation stability from a highly concurrent aspect that would be > > > great. Additionally, if anyone has achieved 10(s) of 1000(s) of > > > concurrent websocket connections with Tomcat 7, can you share how > > > Tomcat was configured, what OS it was running on, and what client > > > library you used in testing this? > > > > I don't have any references for that but will be adding something to the > unit > > tests. > > > > Mark > > > > Thanks for the information. If you have an reference examples for > server-side code based on JSR356, as well as a drop of Tomcat that supports > it, that would be a good place to start. > > There are several resources you can check: 1. Check Java EE 7 samples and documentation related to JSR 356. The jsr is part of Java EE 7 soecs (included in Web Profile as well). 2. Checkout Tomcat 8 source tree and check junit tests under org.apache.tomcat.websocket packages 3. Google it and check some of the blogs currently written on the subject. > > > --------------------------------------------------------------------- > > To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org > > For additional commands, e-mail: users-h...@tomcat.apache.org > > > --------------------------------------------------------------------- > To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org > For additional commands, e-mail: users-h...@tomcat.apache.org > >
