From 662a3e87010fefa1fe1c4b1f013c5b8db9dba3ba Mon Sep 17 00:00:00 2001
From: Mike Gunderloy <MikeG1@larkfarm.com>
Date: Mon, 9 Feb 2009 17:57:55 -0600
Subject: Warning about config.threadsafe! in the configuration guide.

---
 railties/guides/source/configuring.textile | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

(limited to 'railties/guides/source/configuring.textile')

diff --git a/railties/guides/source/configuring.textile b/railties/guides/source/configuring.textile
index c2b28ae6e0..5437184a0c 100644
--- a/railties/guides/source/configuring.textile
+++ b/railties/guides/source/configuring.textile
@@ -81,7 +81,9 @@ h4. Configuring Action Controller
 
 * +consider_all_requests_local+ is generally set to +true+ during development and +false+ during production; if it is set to +true+, then any error will cause detailed debugging information to be dumped in the HTTP response. For finer-grained control, set this to +false+ and implement +local_request?+ to specify which requests should provide debugging information on errors.
 
-* +allow_concurrency+ should be set to +true+ to allow concurrent (threadsafe) action processing. Set to +false+ by default.
+* +allow_concurrency+ should be set to +true+ to allow concurrent (threadsafe) action processing. Set to +false+ by default. You probably don't want to call this one directly, though, because a series of other adjustments need to be made for threadsafe mode to work properly. Instead, you should simply call +config.threadsafe!+ inside your +production.rb+ file, which makes all the necessary adjustments.
+
+WARNING: Threadsafe operation in incompatible with the normal workings of development mode Rails. In particular, automatic dependency loading and class reloading are automatically disabled when you call +config.threadsafe!+.
 
 * +param_parsers+ provides an array of handlers that can extract information from incoming HTTP requests and add it to the +params+ hash. By default, parsers for multipart forms, URL-encoded forms, XML, and JSON are active.
 
-- 
cgit v1.2.3

