Is it true that 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.
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.
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?