Hi We have an apache server that load balances two types of applications across different stacks of tomcats. We have a tomcat stack for requests that processes very quickly, lets call this stack A and a tomcat stack for slower running request(different type of application) named stack B. We limit connections on the apache to protect the underlying layers eg: ServerLimit 5 ThreadLimit 10 StartServers 5 ThreadsPerChild 10 MinSpareThreads 10 MaxClients 50 MaxSpareThreads 50 However if stack A or B misbehave and eat up all of the available apache connections it can cause a denial of service for the other stack that is on the same apache. My question really is where I should be doing the isolation to protect slow stacks. I am not sure whether I can achieve this in modjk or whether I should rather be running separate apache instances for tomcat stack A and B. I considered using virtual hosts but I believe they would still share the overall amount of threads as defined above. Regards ______________________________________________________________________ This email has been scanned by the MessageLabs Email Security System. For more information please visit http://www.messagelabs.com/email ______________________________________________________________________ --------------------------------------------------------------------- The official User-To-User support forum of the Apache HTTP Server Project. See <URL:http://httpd.apache.org/userslist.html> for more info. To unsubscribe, e-mail: users-unsubscribe@xxxxxxxxxxxxxxxx " from the digest: users-digest-unsubscribe@xxxxxxxxxxxxxxxx For additional commands, e-mail: users-help@xxxxxxxxxxxxxxxx