# configured then setup some rack middleware to police the limit
if APP_CONFIG.include?('soft_memory_limit') and defined?(PhusionPassenger)
# Define some rack middleware to police the soft memory limit
- module OSM
- class MemoryLimit
- def initialize(app)
- @app = app
- end
-
- def call(env)
- # Process this requst
- status, headers, body = @app.call(env)
-
- # Restart if we've hit our memory limit
- if resident_size > APP_CONFIG['soft_memory_limit']
- Process.kill("USR1", 0)
- end
-
- # Return the result of this request
- [status, headers, body]
+ class MemoryLimit
+ def initialize(app)
+ @app = app
+ end
+
+ def call(env)
+ # Process this requst
+ status, headers, body = @app.call(env)
+
+ # Restart if we've hit our memory limit
+ if resident_size > APP_CONFIG['soft_memory_limit']
+ Process.kill("USR1", 0)
end
- private
- def resident_size
- # Read statm to get process sizes. Format is
- # Size RSS Shared Text Lib Data
- fields = File.open("/proc/self/statm") do |file|
- fields = file.gets.split(" ")
- end
-
- # Return resident size in megabytes
- return fields[1].to_i / 256
+
+ # Return the result of this request
+ [status, headers, body]
+ end
+ private
+ def resident_size
+ # Read statm to get process sizes. Format is
+ # Size RSS Shared Text Lib Data
+ fields = File.open("/proc/self/statm") do |file|
+ fields = file.gets.split(" ")
end
+
+ # Return resident size in megabytes
+ return fields[1].to_i / 256
end
end
# Install the memory limit checker
- Rails.configuration.middleware.use OSM::MemoryLimit
+ Rails.configuration.middleware.use MemoryLimit
end