Hi Kevin,

I am not sure that the root cause of the crash was the "Unable to open Audit file in append mode.". It is probably a result of the exhaustion of file descriptors available.

Code:
	java.io.FileNotFoundException: /RNS/lightstreamer/conf/./../audit/audit_log_b2-d3-5d-1a-b2-04_28.txt (Too many open files)
Indeed, the limit on the number of open files in Unix and Linux systems also applies to the number of open sockets.

Could you check if the server had experienced a considerable increase in the number of open connections?
Do you know if your system imposes a particular limit on this number?
We try to put the "ulimit" command in our Server launch script, even though it might not work in some environments.

Regards,
Giuseppe