Update running.rst

Hint on [Errno 24] "Too many open files" (http://stackoverflow.com/a/20894374)

diff --git a/docs/guide/running.rst b/docs/guide/running.rst
index 9ebe6cfb5f4b1d24b32d16ead4315d8dbc51e1d6..1a1d47f929ab94b7d1c5c845472ba09ecac98fa3 100644 (file)
--- a/docs/guide/running.rst
+++ b/docs/guide/running.rst
@@ -15,7 +15,10 @@ configuring a WSGI container to find your application, you write a
         main()
 
 Configure your operating system or process manager to run this program to
-start the server.
+start the server. Please note that it may be necessary to increase the number 
+of open files per process (to avoid "Too many open files"-Error). 
+To raise this limit you can use the ulimit command or modify 
+/etc/security/limits.conf (setting it to 50000 for example).
 
 Processes and ports
 ~~~~~~~~~~~~~~~~~~~