I've scoured the wiki, looked at tuning the JVM settings, and am still having problems uploading a massive amount of documents into Alfresco. The program simply becomes nonresponsive after uploading many small documents, or as little as one very large document. The problem is reproducible using CIFS, webdav, or ftp.
How big of a repository can Alfresco handle on a quad-core ubuntu box with 4 gb ddr2 ram? How much of that 4gb should be devoted to the JVM? Anyone else have luck transferring half a million documents into such a setup?