it sounds like the problem is caused by a large number of connections dying holding things up.
peter On 5/6/05, [EMAIL PROTECTED] <[EMAIL PROTECTED]> wrote: > > 153 ESTABLISHED connections to port 443 > 553 connections to port 443 in the process of dying. > 1420 connections total (Assuming I'm reading the output of wc correctly;) > > [EMAIL PROTECTED] tony]$ cat netstat.txt |grep ESTABLISHED|wc > 693 4851 55442 > [EMAIL PROTECTED] tony]$ cat netstat.txt |grep CLOSE_WAIT|wc > 101 707 7980 > [EMAIL PROTECTED] tony]$ cat netstat.txt |grep TIME_WAIT|wc > 610 4270 47590 > [EMAIL PROTECTED] tony]$ cat netstat.txt |grep FIN_WAIT|wc > 3 21 237 > [EMAIL PROTECTED] tony]$ cat netstat.txt |wc > 1420 9929 112098 > > [EMAIL PROTECTED] tony]$ cat netstat.txt |grep 127.0.0.1.8009|grep > ESTABLISHED|wc > 512 3584 40960 > [EMAIL PROTECTED] tony]$ cat netstat.txt |grep 127.0.0.1.8009|grep WAIT|wc > 25 175 1950 > [EMAIL PROTECTED] tony]$ cat netstat.txt |grep 129.93.1.146.443|grep WAIT|wc > 553 3871 43222 > [EMAIL PROTECTED] tony]$ cat netstat.txt |grep 129.93.1.146.443|grep > ESTABLISHED|wc > 153 1071 12242 > > -----Original Message----- > From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] > Sent: Friday, May 06, 2005 7:00 PM > To: Tomcat Users List; [EMAIL PROTECTED] > Subject: RE: Tomcat 5 slow, it's in production, please help! > > I think some of the problem is at the OS level.... > > You can set a session time at the tomcat level, but the default solaris TCP > timeouts are hours long. I hope you used the ndd commands to set the TCP > parameters for short web sessions. > > Also, Solaris 2.6 has a bad thread model and there are numerous patches > required to run it with any recent Java 2 distributions. To use the > 1.4.xxx JVM would require about a dozen patches. > > It would be way better to try to get Solaris 10 installed on this box -- It > handles the ndd setting for you and is way faster on the same hardware. > [even solaris 8...] > > -------------- Original message ---------------------- > From: <[EMAIL PROTECTED]> > > What does "netstat -nt" show? > > You may have enough connections going that old ones > > have to time out before you can establish a new one. > > > > -----Original Message----- > > From: Jeffrey [mailto:[EMAIL PROTECTED] > > Sent: Friday, May 06, 2005 2:16 PM > > To: tomcat-user@jakarta.apache.org > > Subject: Tomcat 5 slow, it's in production, please help! > > > > > > 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] > > > > --------------------------------------------------------------------- > 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]
