added connection fix initializer, helps long running resque workers not fail

jcredding
1 parent b5fdacd1
Showing 1 changed file with 19 additions and 2 deletions Show diff stats
config/initializers/connection_fix.rb
+# from http://gist.github.com/238999
+#
+# If your workers are inactive for a long period of time, they'll lose
+# their MySQL connection.
+#
+# This hack ensures we re-connect whenever a connection is
+# lost. Because, really. why not?
+#
+# Stick this in RAILS_ROOT/config/initializers/connection_fix.rb (or somewhere similar)
+#
+# From:
+#   http://coderrr.wordpress.com/2009/01/08/activerecord-threading-issues-and-resolutions/
+
 if defined?(ActiveRecord::ConnectionAdapters::Mysql2Adapter)
+
   module ActiveRecord::ConnectionAdapters
+
     class Mysql2Adapter
       alias_method :execute_without_retry, :execute
  
       def execute(*args)
         execute_without_retry(*args)
-      rescue Mysql2::Error => e
+      rescue ActiveRecord::StatementInvalid => e
         if e.message =~ /server has gone away/i
           warn "Server timed out, retrying"
           reconnect!
@@ -15,5 +30,7 @@ if defined?(ActiveRecord::ConnectionAdapters::Mysql2Adapter)
         end
       end
     end
+
   end
-end
 \ No newline at end of file
+
+end
	1	+# from http://gist.github.com/238999
	2	+#
	3	+# If your workers are inactive for a long period of time, they'll lose
	4	+# their MySQL connection.
	5	+#
	6	+# This hack ensures we re-connect whenever a connection is
	7	+# lost. Because, really. why not?
	8	+#
	9	+# Stick this in RAILS_ROOT/config/initializers/connection_fix.rb (or somewhere similar)
	10	+#
	11	+# From:
	12	+# http://coderrr.wordpress.com/2009/01/08/activerecord-threading-issues-and-resolutions/
	13	+
1	14	if defined?(ActiveRecord::ConnectionAdapters::Mysql2Adapter)
	15	+
2	16	module ActiveRecord::ConnectionAdapters
	17	+
3	18	class Mysql2Adapter
4	19	alias_method :execute_without_retry, :execute
5	20
6	21	def execute(*args)
7	22	execute_without_retry(*args)
8		- rescue Mysql2::Error => e
	23	+ rescue ActiveRecord::StatementInvalid => e
9	24	if e.message =~ /server has gone away/i
10	25	warn "Server timed out, retrying"
11	26	reconnect!
...	...	@@ -15,5 +30,7 @@ if defined?(ActiveRecord::ConnectionAdapters::Mysql2Adapter)
15	30	end
16	31	end
17	32	end
	33	+
18	34	end
19		-end
20	35	\ No newline at end of file
	36	+
	37	+end
...	...