Re: [xwiki-users] [Error]: Java heap memory error on adding large attachment

Dowson_Jim(a)emc.com wrote: Thus, the problem may arise from the amount of memory available for Java. What servlet container are you using? I've seen this error here running Tomcat. You can increase this amount by passing this parameter "-Xmx256m -Xms256m" (in this case 256Mb will be the new amount of available memory) at startup time. So, you have to shutdown your servlet container, modify some script to startup.sh, catalina.sh or whatever your are using to launch Tomcat, to add this paramenters to CATALINA_OPTS or JAVA_OPTS. I have not a clear idea about what is the right variable to be modified. Any feedback will be really welcome. Here is the script I am using here to start Tomcat: mire:/home/webmaster/bin # cat start_tomcat6 #!/bin/sh export CATALINA_HOME=/usr/share/tomcat-6.0.10 export JAVA_HOME=/usr/share/java/jre-1.6.0_01 export JRE_HOME=/usr/share/java/jre-1.6.0_01 export CATALINA_OPTS="-Xmx512m -Xms512m" export JAVA_OPTS="-Xmx512m -Xms512m" $CATALINA_HOME/bin/startup.sh As per your question about the need of restarting XWiki so that the new configuration values become effective. Yes, this is required. xwiki.cfg is read at deployment time. So if you have any utility that allow you to restart just one application, you are a lucky person :-) If you have not it, just restart the servlet container. I am sure there are people out there with a much more in depth knowledge about this issue. But this has helped me. I hope it could be useful for you as well. Greetings, -- Ricardo Rodríguez Your EPEC Network ICT Team