Hi, check the jvm runs in "server" mode (check there is a '-server' parameter given to jvm startup). Server and client mode have different GC mecanisms. Bill Clarke-Fields a écrit : > Hi, > We are running an application on Tomcat 5.0.28 with Java 1.4.2. The usage > of the application is very cyclical. It is used heavily during the day, and > lightly at night. During peak daytime hours, a full garbage collection > takes less than 2 seconds, which is fine. However, after a long period of > inactivity in the evening, a full garbage collection will be triggered and > take a very long time. Sometimes over a minute! > > Is there any way to avoid this long garbage collection? Why does it take so > long? (Maybe because it is filling up with many small objects over time > rather than a few larger objects?) > > Thanks for your help. > -Bill > > p.s. Upgrading to a newer version of Tomcat or Java is unfortunately not an > option at this point. >
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