It seems that, at least in most cases, the main menu page after a login is loaded slow. After that other pages are loaded pretty quick. Does that mean once a connection is established, browser and server communication is ok. If that is the case, maybe I should look more at the connection timeout at the OS level (solaris 5.6) since I see a lot of TIME_WAIT at the machine using the 'netstat -n' command.
--- Jeffrey <[EMAIL PROTECTED]> wrote: > Please see the answer embedded below. > > --- Parsons Technical Services > <[EMAIL PROTECTED]> wrote: > > > 127421 over what period of time? > It's about 6 hours. But most of them are at the > first > hour or so. > > > > Without a profile it is impossible to say if > Tomcat > > can handle the load. But > > if the memory consumption and the CPU usage is low > > (as noted) it is fairly > > safe to say that Tomcat itself is not the bottle > > neck. > > > > Quick question, why are you using Apache? > > I am using Apache SSL for SSL connections. It is the > original setup by someone else. > > > > > Also what is the time out for the connection in > > Apache? > > Apache's Timeout value is 300. MaxKeepAliveRequests > is > 100 and KeepAliveTimeout is 15 > > > > Do you get this slow reaction if you are hitting > > Tomcat directly? > > I did get the slow reaction if I hit Tomcat directly > at port 8080 to the same webapp. But the tomcat > manager web pages seem show up fairly quick. > > > > > I may be repeating something that was covered > > because I have not been > > reading this thread in detail. So sorry if already > > asked and answered. > > > > > > Doug > > > > > > > > ----- Original Message ----- > > From: "Jeffrey" <[EMAIL PROTECTED]> > > To: "Tomcat Users List" > > <tomcat-user@jakarta.apache.org> > > Sent: Saturday, May 07, 2005 10:44 AM > > Subject: Re: Tomcat 5 slow, it's in production, > > please help! > > > > > > > This website has many JSP pages of which each > has > > many > > > JSPF included. I wonder whether or not the > system > > is > > > not be able to handle this kind of setting. But > > > strange thing is that when we experienced the > > > slowness, I looked at the usage of CPU and find > > that > > > almost 90% of the CPU is idle. > > > > > > Do anyone know what kind of load a tomcat can > > handle. > > > I am thinking that maybe a load balancer will > > help. > > > But I am still puzzled by the fact of low CPU > > usage at > > > the time of slowness. > > > > > > From the server status view in tomcat manager, I > > can > > > see 's Request count: 127421' > > > > > > --- 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] > > >> > > >> > > > > > > > __________________________________________________ > > > Do You Yahoo!? > > > Tired of spam? Yahoo! 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