Mark Thomas schrieb: > Roy McMorran wrote: >> Roy McMorran wrote: >>> Despite my misgivings, 1.1.5 seems to have helped. It's run my test >>> script for about 30 minutes now without problems (previously would >>> have hung by minute 3). >>> However! >>> My dev system (which was already running 1.1.15) still exhibits the >>> problem. It also has newer versions of Tomcat (6.0.18), Apache >>> (2.2.10) and mod_jk (1.2.27). >>> >> Correction. The combination of updating libtcnative to 1.1.15 _AND_ >> setting "JkOptions +DisableReuse" prevents both systems from hanging. >> >> I'm concerned about the performance implications of using this directive >> based on what I read at >> http://tomcat.apache.org/connectors-doc/reference/apache.html > > Don't be. With httpd and Tomcat on the same box (or even the same LAN) the > overhead of establishing the TCP connection on every request is minimal. > Whilst theoretically there would be a performance issue in practice you > won't notice it and it is much more stable. I have heard some reports of > people seeing better overall performance. The usual YMMV warning applies. > The only way to know for sure is to test it. > >> and I'm unclear as to why it's necessary. Can anyone educate me on >> this? > > Various causes, usually comes down to one end dropping the connection > without the other one realising. HTTP keep-alive usually plays a part in > this. Can also be related to connection time outs and when each end checks > to see if the time out is expired. > > In short, disabling re-use removes all of these issues. > >> Do I still have a problem with my configuration? > > You could probably tune the time out and keep alive settings to reduce the > issue but just disabling reuse is usually the better option.
Easier vs. better: If you setup sensible timeouts and use CPing/CPong as described on http://tomcat.apache.org/connectors-doc/generic_howto/timeouts.html There should be no such problems, even without DisableReuse. Regards, Rainer --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
