Hi. I'm running resin 4.0.32 (?) on a couple of virtual hosts at Rackspace on Ubuntu. These are small machines, 512 MB of RAM, but they're pretty much only running their resin (free) instance.
I'm doing some rudimentary load testing with JMeter. I have a script that makes three calls to the REST service implemented in my webapp. When I try to do 1000 simultaneous connections (via round-robin load balancing onto two nodes, so figure ~500 near-simultaneous connections), my app starts throwing exceptions about not being able to open connections to the DB: Caused by: com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException: User gcs already has more than 'max_user_connections' active connections So, clearly I need to expand the DB's capabilities. But JMeter also reports a nunch of these: <httpSample t="1" lt="0" ts="1355286080856" s="false" lb="HTTP Request" rc="Non HTTP response code: java.net.SocketException" rm="Non HTTP response message: Too many open files" tn="Thread Group 1-918" dt="text" by="1436"/> My configuration is basically out-of-the-box resin.xml. I can increase the amount of RAM available, there's no session state being stored. I'm wondering what config settings to look into increasing (number of threads? Connections allowed?) Any guidance on how much RAM one needs for a given number of threads and connections? Sorry for the rudimentary question, but this is the first time I've been responsible for making sure our web app stays up, and I don't have a good idea how many requests we might need to support. Thanks! -- Rick _______________________________________________ resin-interest mailing list resin-interest@caucho.com http://maillist.caucho.com/mailman/listinfo/resin-interest
