Once in a while Moses loses its marbles when ingesting a large number of documents. A couple of suggestions:

• Delete everything in the main collection before attempting to upload.
• Upload in small batches.

When it does fall over, this is what seems to be necessary:

• Stop Tomcat on Pear (as yourself, cd /etc/init.d; sudo ./tomcat stop).
• Delete the moses webapp completely.
• Upload your local working copy (from ~/apps/apache-tomcat..).
• Overwrite the web.xml file from the local copy with the one from the SVN tree.
• Make sure everything is owned by hcmc.
• As hcmc, chmod -R g+w *
• Restart Tomcat (as yourself, cd /etc/init.d; sudo ./tomcat start).
• Confirm all projects are back up.