Ramesh, On Thu, Apr 26, 2018 at 11:45 AM, Naga Ramesh <naga.ram...@manthan.com> wrote: > Team, > > > > I have configured the tomcat7 & 8 versions on our AWS environment, but how > much memory need to give min and max for each tomcat. ( max to max how much > need to give the max vlaue) > > > > Server: AWS linux > > RAM: 128GB > > > > I have given min:4096M and max:32768M >
IMO, without analyzing the application's heap usage pattern, it's very hard to speculate what should be the ideal heap size for any application. If you set too low values, you might ended up seeing frequent GCs and in worst case - OutOfMemory. If you go for a very high value, and your application's requirement is much lesser than that, then you have lots of unused memory(which you can use in different purpose). As you have already setup a min/max value, I will strongly suggest you to look closely at the heap usage for at least one week. You can get that information in GC log(hopefully you are logging it). After that you can set min/max heap size to a value which is 20-30% more than your max heap usage. That will give your app some head room so that in emergency situation(like very large request processing or sudden spike in user traffic) your app behaves normally. Thanks! Suvendu --------------------------------------------------------------------- To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
