Module: Resque::StuckQueue
- Defined in:
- lib/resque_stuck_queue.rb,
lib/resque_stuck_queue/config.rb,
lib/resque_stuck_queue/version.rb,
lib/resque_stuck_queue/heartbeat_job.rb
Defined Under Namespace
Classes: Config, HeartbeatJob
Constant Summary
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- HEARTBEAT_INTERVAL =
5 * 60
- WATCHER_INTERVAL =
send heartbeat job every 5 minutes
5
- TRIGGER_TIMEOUT =
check key is udpated every 5 seconds.
60 * 60
- TRIGGERED_HANDLER =
must be called by convention: type_handler
proc { |queue_name, lag| Resque::StuckQueue::LOGGER.info("Shit gone bad with them queues...on #{queue_name}. Lag time is #{lag}") }
- RECOVERED_HANDLER =
proc { |queue_name, lag| Resque::StuckQueue::LOGGER.info("recovered queue phew #{queue_name}. Lag time is #{lag}") }
- LOGGER =
Logger.new($stdout)
- HEARTBEAT_KEY =
"resque-stuck-queue"
- TRIGGERED_KEY =
"resque-stuck-queue-last-triggered"
- VERSION =
"0.5.2"
Class Attribute Summary collapse
Class Method Summary
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Class Attribute Details
.config ⇒ Object
Returns the value of attribute config.
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# File 'lib/resque_stuck_queue.rb', line 18
def config
@config
end
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Class Method Details
.abort_on_exception ⇒ Object
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# File 'lib/resque_stuck_queue.rb', line 56
def abort_on_exception
if !config[:abort_on_exception].nil?
config[:abort_on_exception] else
true end
end
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.force_stop! ⇒ Object
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# File 'lib/resque_stuck_queue.rb', line 108
def force_stop!
logger.info("Force stopping")
@threads.map(&:kill)
reset!
end
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.heartbeat_key_for(queue) ⇒ Object
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# File 'lib/resque_stuck_queue.rb', line 32
def heartbeat_key_for(queue)
if config[:heartbeat_key]
"#{queue}:#{config[:heartbeat_key]}"
else
"#{queue}:#{HEARTBEAT_KEY}"
end
end
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.heartbeat_keys ⇒ Object
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# File 'lib/resque_stuck_queue.rb', line 48
def heartbeat_keys
queues.map{|q| heartbeat_key_for(q) }
end
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.log_starting_info ⇒ Object
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# File 'lib/resque_stuck_queue.rb', line 145
def log_starting_info
logger.info("Starting StuckQueue with config: #{self.config.inspect}")
end
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.log_watcher_info(queue_name) ⇒ Object
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# File 'lib/resque_stuck_queue.rb', line 149
def log_watcher_info(queue_name)
logger.info("Lag time for #{queue_name} is #{lag_time(queue_name).inspect} seconds.")
if triggered_ago = last_triggered(queue_name)
logger.info("Last triggered for #{queue_name} is #{triggered_ago.inspect} seconds.")
else
logger.info("No last trigger found for #{queue_name}.")
end
end
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.logger ⇒ Object
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# File 'lib/resque_stuck_queue.rb', line 24
def logger
@logger ||= (config[:logger] || StuckQueue::LOGGER)
end
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.queues ⇒ Object
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# File 'lib/resque_stuck_queue.rb', line 52
def queues
@queues ||= (config[:queues] || [:app])
end
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.redis ⇒ Object
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# File 'lib/resque_stuck_queue.rb', line 28
def redis
@redis ||= config[:redis]
end
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.reset! ⇒ Object
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# File 'lib/resque_stuck_queue.rb', line 114
def reset!
@config = Config.new @queues = nil
@running = false
@logger = nil
end
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.reset_keys ⇒ Object
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# File 'lib/resque_stuck_queue.rb', line 122
def reset_keys
queues.each do |qn|
redis.del(heartbeat_key_for(qn))
redis.del(triggered_key_for(qn))
end
end
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.start ⇒ Object
call this after setting config. once started you should’t be allowed to modify it
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# File 'lib/resque_stuck_queue.rb', line 72
def start
@running = true
@stopped = false
@threads = []
config.validate_required_keys!
config.freeze
log_starting_info
reset_keys
RedisClassy.redis = redis if RedisClassy.redis.nil?
pretty_process_name
setup_heartbeat_thread
setup_watcher_thread
setup_warn_thread
@threads.map(&:join)
logger.info("threads stopped")
@stopped = true
end
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.start_in_background ⇒ Object
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# File 'lib/resque_stuck_queue.rb', line 64
def start_in_background
Thread.new do
Thread.current.abort_on_exception = abort_on_exception
self.start
end
end
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.stop ⇒ Object
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# File 'lib/resque_stuck_queue.rb', line 99
def stop
reset!
while @stopped == false
sleep 1
end
logger.info("Stopped")
end
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.stopped? ⇒ Boolean
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# File 'lib/resque_stuck_queue.rb', line 129
def stopped?
@stopped
end
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.trigger_handler(queue_name, type) ⇒ Object
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# File 'lib/resque_stuck_queue.rb', line 133
def trigger_handler(queue_name, type)
raise 'Must trigger either the recovered or triggered handler!' unless (type == :recovered || type == :triggered)
handler_name = :"#{type}_handler"
logger.info("Triggering #{type} handler for #{queue_name} at #{Time.now}.")
(config[handler_name] || const_get(handler_name.upcase)).call(queue_name, lag_time(queue_name))
manual_refresh(queue_name, type)
rescue => e
logger.info("handler #{type} for #{queue_name} crashed: #{e.inspect}")
logger.info("\n#{e.backtrace.join("\n")}")
raise e
end
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.triggered_key_for(queue) ⇒ Object
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# File 'lib/resque_stuck_queue.rb', line 40
def triggered_key_for(queue)
if config[:triggered_key]
"#{queue}:#{self.config[:triggered_key]}"
else
"#{queue}:#{TRIGGERED_KEY}"
end
end
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