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! 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] > > Discover Yahoo! Stay in touch with email, IM, photo sharing and more. Check it out! http://discover.yahoo.com/stayintouch.html --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
