too many open files

[Alexey Shakov]

Hi *,

we are optimizing lucene indexes automaticaly every night.
This reduces the amount of index files, but the rest of the files is not 
really deleted, but only marked as 'deleted' (RedHat VM). Earlier or 
later, the system crashes with message "Too many open files"

This behavior occurs only in production env, we cannot reproduce it in 
test env.

Any help is appreciated.

Best regards,
Alexey