# Setup any specified hard limit on the virtual size of the process
-if APP_CONFIG.include?('hard_memory_limit') and Process.const_defined?(:RLIMIT_AS)
- Process.setrlimit Process::RLIMIT_AS, APP_CONFIG['hard_memory_limit']*1024*1024, Process::RLIM_INFINITY
+if defined?(HARD_MEMORY_LIMIT) and Process.const_defined?(:RLIMIT_AS)
+ Process.setrlimit Process::RLIMIT_AS, HARD_MEMORY_LIMIT*1024*1024, Process::RLIM_INFINITY
end
# If we're running under passenger and a soft memory limit is
# configured then setup some rack middleware to police the limit
-if APP_CONFIG.include?('soft_memory_limit') and defined?(PhusionPassenger)
+if defined?(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 > SOFT_MEMORY_LIMIT
+ Process.kill("USR1", Process.pid)
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