This happens anywhere between a few hours and a few days after a restart of Tomcat. On quiet days as well as on busy days.
I have set -Xincgc (despite the performance decrease that this is likely to cause) but need more time to know if that helps. I have also found a few places where I can improve my code (in particular, database connections were sometimes not closed); perhaps that will also have a positive effect. -----Original Message----- From: Jim D. Results [mailto:[EMAIL PROTECTED]] Sent: Monday, December 30, 2002 2:39 PM To: Tomcat Users List; [EMAIL PROTECTED] Subject: Re: Tomcat stability problem Could be the VM garbage collecting ? How often does this happen ? Jim D. ----- Original Message ----- From: "Ben Glorie" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Friday, December 27, 2002 12:59 PM Subject: Tomcat stability problem > We're running Tomcat 4.1.12 on a dual-proc PIII with 512MB RAM. The > application consists of 100,000+ HTML pages and approx. 100 jsp pages. We > get approx. 60,000 page views per day. Performance is fine, but occasionally > the system runs into the following problem: > > - when you request a jsp page in the browser, there is a delay of 5-10 > seconds, then the page is loaded into the browser > - even though the HTML code is complete and all images are visible, the > browser still appears to be loading something ("load" bar is creeping) > - then after approx. 30 seconds the loading stops (because of a page > timeout?) > - static HTML pages are not affected, they load as quickly as usual > > Although the problem seems to happen more frequently on busy days, it does > not seem to be related to peak traffic: it has also happened at quiet times, > and sometimes within an hour after a Tomcat restart (up to 4 days after a > restart). Does anybody have any ideas on what is happening and how we can > solve it? Some configuration details: > > - catalina.sh: > CATALINA_OPTS="-Xmx128M" > (we've ordered more RAM, as soon as it has arrived we're planning to change > this to -Xmx512M > > - server.xml: > <Connector className="org.apache.coyote.tomcat4.CoyoteConnector" > port="80" minProcessors="10" maxProcessors="110" > enableLookups="true" redirectPort="8443" > acceptCount="10" debug="0" connectionTimeout="10000" > useURIValidationHack="false" /> > > - web.xml (on public site): > <session-config> > <session-timeout>10</session-timeout> > </session-config> > > Thanks a lot for your help. > > > -- > To unsubscribe, e-mail: <mailto:[EMAIL PROTECTED]> > For additional commands, e-mail: <mailto:[EMAIL PROTECTED]> > > -- To unsubscribe, e-mail: <mailto:[EMAIL PROTECTED]> For additional commands, e-mail: <mailto:[EMAIL PROTECTED]> -- To unsubscribe, e-mail: <mailto:[EMAIL PROTECTED]> For additional commands, e-mail: <mailto:[EMAIL PROTECTED]>
