Thanks for your replay, Neven. Eventually - I decided to heed advices and remove JAVA_OPTS at all. So - now using only CATALINA_OPTS in /bin/setenv.bat.
2014/1/28 Neven Cvetkovic <neven.cvetko...@gmail.com> > On Tue, Jan 28, 2014 at 4:00 AM, Арсений Зинченко <setev...@gmail.com > >wrote: > > > > About point 4 - this is main goal: as we have few Java-applications > > running > > in this very system - they must use "global" memory options, thats why I > > suggested set System variable JAVA_OPTS. But namely Tomcat - must use > > another memory perametrs. > > > > Arsenije, > > That's one way of doing it, yes. My personal preference is to keep > system-wide settings empty, and then size each Java process separately (in > their corresponding startup script). Having said that, it really depends on > type of applications you are running on you system. Are they same type of > applications, or are they significantly different? If different, I probably > want to size them differently, and customize each one of them. Yes, it is > easy to set default values in the JAVA_OPTS globally, but that's rarely > what I want for my applications. > > Also, others pointed out - it is confusing to see both JAVA_OPTS and > CATALINA_OPTS both setting up -Xmx and -Xms values. Ultimately, everything > boils down to a single line: > > java.exe %JAVA_OPTS% %CATALINA_OPTS% ... > java.exe -Xmx1G -Xms512M -Xmx4G -Xms2G ... > > Yes, the later will override former parameter, but I wouldn't count on it > :) > > Think if you need to add another Java process that requires 4G, how would > you set the size of memory of that process? > > So, unless all Java applications on that box (you said you had only few) - > are of similar type and require same sizing, I wouldn't use JAVA_OPTS > system-wide setting. > > > > > > So, if I correctly understood - for me better solution will be: > > > > 1) set CATALINA_OPTS with Xmx4G etc - in /bin/setenv.bat; > > 2) set JAVA_OPTS with Xmx1G etc - as system variable. > > > > Yep? > > > > It is TOMCAT_HOME/bin/setenv.bat (wherever you installed Tomcat). > > Yes, that is one possible solution, if all your Java apps need to be sized > the same. > > I prefer sizing each Java application separately in a script that starts > it. > > Hope that helps! > n. >
