Yoo, Yes switch to jk2 is faster!
set parameters in OPT_CATALINA with -server Xmx=? and Xms=? Sorry values depend on your available memory on the server, parameters could be different with your version, check or google for correct parameters, should improve performance... Another option could be your code, have a good look at it and try to optimize... Greetings O. On 5/6/05, Jeffrey <[EMAIL PROTECTED]> wrote: > I use just mod_jk, not jk2 I believe. I do have > connectionTimeout="20000" set to AJP connector in > server.xml > > Is there any performance issues with jk? Should I > switch to jk2? > > Thanks. > > --- e <[EMAIL PROTECTED]> wrote: > > What JK version do you use? To quote Mladen: > > > > "You are probably using prefork mpm, so there is no > > way to > > control the number of connections to Tomcat in any > > way, trough > > mod_jk. You can limit it only by setting MaxClients > > in the httpd.conf > > to the maximum number desired. > > Because of pre-forking mechanism each child process > > will eventually > > establish a single connection to Tomcat, thus the > > number of connections > > will rise from StartServers to MaxClients. > > > > So there are two solutions for prefork. > > 1. Make maxThreads==MaxClients > > 2. Add connectionTimeout="20000" to AJP connector." > > > > On 5/6/05, Jeffrey <[EMAIL PROTECTED]> wrote: > > > I have a apache/tomcat environment that has some > > > problems recently. The environment has the > > following: > > > 1. Apache 1.3 > > > 2. Tomcat 5.0.28 (Max memory 384mb) > > > 3. JDK 1.4.2_06 > > > > > > My apache has MaxClient set to 256 (apache > > default). > > > The maxThread for tomcat is 500. The site is a > > > database driven site. > > > > > > It seems working fine when load is low. But when > > there > > > are more than 150 threads (from the sever status > > view > > > of the tomcat manager), it's response time is very > > > slow (5 - 10 minutes). I have tested the database > > > connections, they seem responding fairly well. > > > > > > Interesting thing is that most of time the slow > > > response time only happens when a user login. Once > > the > > > user login and get the main menu page, the user > > will > > > get a good response time. Is it related to > > KeepAlive > > > connections. > > > > > > Another strange thing is that many threads always > > show > > > up in the server status view on the tomcat html > > > manager page even though I am sure the request has > > > gone (I tested this by making a request, then > > close > > > the browser). > > > > > > My CPU usage is low when the slowdown is > > experienced > > > (Using the top command on this solaris box which > > has > > > old solaris operating system 2.6? with 1GB memory. > > > > > > I set the session timeout time to 5 minutes, but > > in > > > the session view of tomcat manager, I see message > > "30 > > > - <40 minutes:136 sessions". How a session that is > > > more than 30 minutes is still there. Maybe I don't > > > understand this message correctly. > > > > > > Please advice. This is a production machine. Helps > > are > > > greatly appreciated. > > > > > > Thanks. > > > > > > Jeffrey. > > > > > > Discover Yahoo! > > > Get on-the-go sports scores, stock quotes, news > > and more. Check it out! > > > http://discover.yahoo.com/mobile.html > > > > > > > > > --------------------------------------------------------------------- > > > To unsubscribe, e-mail: > > [EMAIL PROTECTED] > > > For additional commands, e-mail: > > [EMAIL PROTECTED] > > > > > > > > > > > --------------------------------------------------------------------- > > To unsubscribe, e-mail: > > [EMAIL PROTECTED] > > For additional commands, e-mail: > > [EMAIL PROTECTED] > > > > > > __________________________________________________ > Do You Yahoo!? > Tired of spam? Yahoo! Mail has the best spam protection around > http://mail.yahoo.com > > --------------------------------------------------------------------- > To unsubscribe, e-mail: [EMAIL PROTECTED] > For additional commands, e-mail: [EMAIL PROTECTED] > > --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
