Using that large of a JVM won't do anything but slow you down. I would warm up your index by throwing queries at it to get the blocks cached on an OS level or work on implementing RAMDirectory instead of FSDirectory to store your index in ram if you have the resources to do so.
--- Mike Alulin <[EMAIL PROTECTED]> wrote: > How to make Nutch use more RAM? I've added -Xmx3g to > the Tomcat command line, but Nutch does not seems to > use this memory. It does not go above 170MB. No > matter whether I reserve 300MB or 3GB of RAM for > JVM, search works with similar speed and requires > similar amount of HDD reads. My test DB includes > about 3M pages that according to the Nutch hardware > requirements article > (http://wiki.apache.org/nutch/HardwareRequirements) > should take up to 6GB of RAM. How can I load more > indexes to RAM? > > Test system info: > OS: Windows Server 2K3 64bit > RAM: 4GB > JDK 1.5 64 bit > Nutch DB ~3M pages > > > > --------------------------------- > Yahoo! Photos > Ring in the New Year with Photo Calendars. Add > photos, events, holidays, whatever.
