On 03/05/2012 11:35, Miguel González Castaños wrote: > Dear all, > > My Tomcat 5.5 server reports in catalina.out under heavy load that > Tomcat is pausing. I checked and no java process was running and I had > to start Tomcat manually.
Can you post an example of the message from catalina.out that says Tomcat is pausing? > No errors before in catalina.out. The only error found today (It > crashed 3 times in 3 hours) was an outofmemory error. > > I changed from 1024Mb to 1536Mb in catalina.sh: > > CATALINA_OPTS="$CATALINA_OPTS -Xms1536m -Xmx1536m" Do you actually have 2Gb of free RAM to assign to the Tomcat process? > After installing Javamelody I saw that memory use was reaching 1056 Mb > (probably that triggered the outofmemory error). > > Anything I can check or any setting I can set to get more information > in the next crash? Enable JMX & connect to Tomcat using VisualVM (with the MBean & Memory Pool plugins). Monitor thread counts & memory usage. Enable an access log, process it to determine traffic volume. Maybe there's a problem, maybe you're just seeing more traffic than your app(s) can handle with a single Tomcat. p -- [key:62590808]
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