Orphaned file descriptors on /roller-index

[Rudman Max]

We've been testing Roller with some pretty high load (about 500  
concurrent users) running search (which reads from the index) and  
posts (which writes to the index) transactions. After a  while, we'd  
run out of file handles which froze Tomcat because it could no longer  
open sockets to accept incoming connections. Our sysadmin told me  
there were a bunch of orphaned file descriptors on files in /roller- 
index directory. I am not sure if that's the reason for Tomcat  
process running out of files but it seems likely. Has anybody ever  
experienced this problem with Roller search index?

Max