On 01/11/2013 23:15, Mark Thomas wrote: > On 01/11/2013 22:00, Bob DeRemer wrote: >> QUESTION: I'm looking for some advice on what Tomcat NIO connector >> settings to use to support 100K concurrent websocket connections. >> Hopefully I can reach this goal through a combination of Tomcat NIO >> Connector settings, and Server 2008 R2 configuration [if needed]. >> >> BACKGROUND: We're scale testing our websocket application and looking >> to see how many concurrent websocket connections we can get on a >> single Tomcat instance - with the goal being 100K. I've provided the >> test landscape details at the bottom - all VERY BIG EC2 instances >> over 10 GB network, so memory, CPU and network do not appear to be >> the problem when monitoring. >> >> PROBLEM: The problem we are running into is that we can't seem to >> establish even 50K connections into Tomcat. At some point, we start >> getting connect failures, similar to the following: > > OK. Win 2k8 R2, 16GB RAM, bunch of other stuff running, client and > server on same machine, no tuning. I get 16,313 connections before it > falls over. That is consistent with the defaults which should allow a > maximum of 16384 (given I have other stuff running). > > (I'll commit the test to trunk shortly).
http://svn.apache.org/viewvc/tomcat/trunk/test/org/apache/tomcat/websocket/TesterConnectionLimit.java?view=annotate For those that want to play with this themselves. --------------------------------------------------------------------- To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
