Actually this looks like a unix system error. Error(23) is
#define ENFILE 23 /* File table overflow */
[ENFILE] File table overflow
Indicates either that the system file table is full, or that there are
too many files currently open in the system.
This error indicates that a system-wide limit has been exceeded. See
[EMFILE] for the case when a per process limit has been exceeded.
You need to contact your unix sysadmin to find out why this happened.
(Bottom line is that it shouldn't have.:)
Nathan