Setting Java JVM Options
To run properly, JasperReports Server needs more Java memory than the default settings. But for development work, the settings can be simpler than those recommended for production. For full information on recommended JAVA_OPTS settings, see the JasperReports Server Community Project Installation Guide.
Tomcat and JBoss JVM Options
Here are some typical settings for JVM options that affect JasperReports Server. For space reasons, some of the options are displayed on multiple lines; make sure you set all options. These are the minimum recommended options; you may need to increase the JVM memory assignment according to your usage.
| JVM Options on Windows | |
| Options for all app servers | set JAVA_OPTS=%JAVA_OPTS% -Xms2048m -Xmx4096m[/code] set JAVA_OPTS=%JAVA_OPTS% -Xss2m -XX:+UseConcMarkSweepGC [/code] |
| Java 11 | |
JasperReports Server doesn’t provide a virtual X frame buffer on Linux. If your Linux applications are graphical, set the ‑Djava.awt.headless=true to prevent Java from trying to connect to an X-Server for image processing.
| JVM Options on Linux and Mac OSX | |
| Options for all app servers | export JAVA_OPTS="$JAVA_OPTS -Xms2048m -Xmx4096m"[/code] export JAVA_OPTS="$JAVA_OPTS -Xss2m"[/code] export JAVA_OPTS="$JAVA_OPTS -XX:+UseConcMarkSweepGC"[/code] |
| Java 11 | |
You can set JVM options in a number of ways. For example, you can add your JAVA_OPTS settings to these files:
| File | Add JVM Options Below the Lines Shown Here: |
| <tomcat>binsetclasspath.bat | set JAVA_ENDORSED_DIRS=%BASEDIR%commonendorsed[/code] |
| <tomcat>/bin/setclasspath.sh | JAVA_ENDORSED_DIRS="$BASEDIR"/common/endorsed[/code] |
| <tomcat>/bin/setenv.bat or <tomcat>/bin/setenv.sh | JAVA_OPTS setting can go anywhere in this file. |
| <jboss>binstandalone.conf.bat <jboss>/bin/standalone.conf | set JAVA_OPTS=%JAVA_OPTS% -Dprogram.name=%PROGNAME% [/code] or export JAVA_OPTS="$JAVA_OPTS -Dprogram.name=$PROGNAME"[/code] |
| | For information on recommended JAVA_OPTS settings for all certified application servers, please refer to the JasperReports Server Community Project Installation Guide. |
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