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Info

The software DSpace relies on does not come out of the box optimized for large repositories. Here are some tips to make it all run faster.

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Tomcat is especially memory hungry, and will benefit from being given lots of RAM. To set the amount of memory available to Tomcat, use either the JAVA_OPTS or CATALINA_OPTS environment variable, e.g:

Code Block

    CATALINA_OPTS=-Xmx512m -Xms512m

OR

Code Block

    JAVA_OPTS=-Xmx512m -Xms512m

...

To increase the amount of PermGen memory available to Tomcat (default=64MB), use either the JAVA_OPTS or CATALINA_OPTS environment variable, e.g:

Code Block

    CATALINA_OPTS=-XX:MaxPermSize=128m

OR

Code Block

    JAVA_OPTS=-XX:MaxPermSize=128m

...

Note

On an Ubuntu machine (10.04) at least, the file /bin/etc/default/tomcat6 appears to be the best place to put these environmental variables.

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If you'd like to provide more memory to command-line tools, you can do so via the JAVA_OPTS environment variable (which is used by the [dspace]/bin/dspace script). Again, it's the same syntax as above:

Code Block

    JAVA_OPTS=-Xmx512m -Xms512m

...

If you'd like to provide more PermGen Space to command-line tools, you can do so via the JAVA_OPTS environment variable (which is used by the [dspace]/bin/dspace script). Again, it's the same syntax as above:

Code Block

    JAVA_OPTS=-XX:MaxPermSize=128m

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