Hello! Using NIO (with channelSendOptions="4", i.e., synchronous), with lightly load, my tests pass 100%. But, on heavy load, not all sessions are replicated on time, and I have about 20% of errors. If I increase maxThreads to 400, I have about 15% of errors.
More information: * I am not performing parallel requests with same session * my cluster has 4 nodes (all in one machine - for test purpose only) * Java 7 64 bits, Tomcat 7.0.52, windows 7 64 bits * using default NIO configuration, but with maxThreads=400 * VM options: -Xms512M - on real environment this value is 1024 -Xmx512M - on real environment this value is 1024 -XX:NewSize=450M -XX:MaxNewSize=450M -XX:PermSize=128M -XX:MaxPermSize=245M -XX:SurvivorRatio=8 -XX:TargetSurvivorRatio=90 -XX:MaxTenuringThreshold=15 -XX:+UseBiasedLocking -XX:CMSInitiatingOccupancyFraction=60 -XX:+UseCMSInitiatingOccupancyOnly -XX:+CMSClassUnloadingEnabled -XX:+UseConcMarkSweepGC -XX:+CMSIncrementalMode -XX:+UseParNewGC -XX:+DisableExplicitGC -XX:+PrintGCDateStamps -XX:+PrintGCDetails -Xloggc:%CATALINA_BASE%/logs/tomcat-gc.log Moreover, I'm trying to attach the logs again. Thanks João
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