mod_jk performance

2005-09-14 Thread marc ratun 

Hi,

I just read an article about webapp benchmarks [1] and they mentioned that
apache+mod_jk+tomcat is about 30% slower than pure tomcat.

This is sad. Until now I believed that the performance decrease with
apache/mod_jk would be marginal.

Putting apache/mod_jk before tomcat is very nice. I don't want to miss
it because it is a good way to integrate other modules.

Is there any way to speed up apache/tomcat cooperation?


Marc

[1] (german only) http://www.heise.de/ix/artikel/2005/10/124/

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Session replication problem

2004-12-06 Thread marc ratun 
Hi,
I'm having problems with the tomcat 5.5 session replication.
I've a cluster with three tomcats, one as central node, two
as peers. The central node works fine, but whenever I
access one of the peers I get the following exception:
06.12.2004 09:51:30 org.apache.catalina.cluster.tcp.ReplicationTransmitter 
sendMessageData
WARNING: Unable to send replicated message, is server down?
java.net.ConnectException: Connection refused: connect
   at java.net.PlainSocketImpl.socketConnect(Native Method)
   at java.net.PlainSocketImpl.doConnect(PlainSocketImpl.java:333)
   at 
java.net.PlainSocketImpl.connectToAddress(PlainSocketImpl.java:195)
   at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:182)
   at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:364)
...

Some things I already tried to solve the problem:
- MCast Addr and Port are the same in every server.xml
- Mcast seems to work, I had a simple Multicast Client
listen on the address and got at least somedata.
- distributable/ in the web.xml of my distributed webapps
Could anyone give me a hint how to solve the problem?
Thank you very much!
Marc
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