Module: SidekiqAlive
- Defined in:
- lib/sidekiq_alive.rb,
lib/sidekiq_alive/redis.rb,
lib/sidekiq_alive/config.rb,
lib/sidekiq_alive/server.rb,
lib/sidekiq_alive/worker.rb,
lib/sidekiq_alive/helpers.rb,
lib/sidekiq_alive/version.rb,
lib/sidekiq_alive/redis/base.rb,
lib/sidekiq_alive/redis/redis_gem.rb,
lib/sidekiq_alive/redis/redis_client_gem.rb
Defined Under Namespace
Modules: Helpers, Redis
Classes: Config, Server, Worker
Constant Summary
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- VERSION =
"2.2.1"
Class Method Summary
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Class Method Details
.alive? ⇒ Boolean
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# File 'lib/sidekiq_alive.rb', line 103
def alive?
redis.ttl(current_lifeness_key) != -2
end
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.config ⇒ Object
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# File 'lib/sidekiq_alive.rb', line 117
def config
@config ||= SidekiqAlive::Config.instance
end
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.current_instance_register_key ⇒ Object
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# File 'lib/sidekiq_alive.rb', line 87
def current_instance_register_key
"#{config.registered_instance_key}::#{hostname}"
end
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.current_instance_registered? ⇒ Boolean
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# File 'lib/sidekiq_alive.rb', line 91
def current_instance_registered?
redis.get(current_instance_register_key)
end
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.current_lifeness_key ⇒ Object
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# File 'lib/sidekiq_alive.rb', line 121
def current_lifeness_key
"#{config.liveness_key}::#{hostname}"
end
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.current_queue ⇒ Object
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# File 'lib/sidekiq_alive.rb', line 54
def current_queue
"#{config.queue_prefix}-#{hostname}"
end
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.hostname ⇒ Object
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# File 'lib/sidekiq_alive.rb', line 125
def hostname
ENV["HOSTNAME"] || "HOSTNAME_NOT_SET"
end
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.logger ⇒ Object
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# File 'lib/sidekiq_alive.rb', line 113
def logger
config.logger || Sidekiq.logger
end
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.purge_pending_jobs ⇒ Object
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# File 'lib/sidekiq_alive.rb', line 73
def purge_pending_jobs
schedule_set = Sidekiq::ScheduledSet.new
jobs = if Helpers.sidekiq_5
schedule_set.select { |job| job.klass == "SidekiqAlive::Worker" && job.queue == current_queue }
else
schedule_set.scan('"class":"SidekiqAlive::Worker"').select { |job| job.queue == current_queue }
end
logger.info("[SidekiqAlive] Purging #{jobs.count} pending for #{hostname}")
jobs.each(&:delete)
logger.info("[SidekiqAlive] Removing queue #{current_queue}")
Sidekiq::Queue.new(current_queue).clear
end
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.redis ⇒ Object
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# File 'lib/sidekiq_alive.rb', line 99
def redis
@redis ||= Redis.adapter
end
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.register_current_instance ⇒ Object
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# File 'lib/sidekiq_alive.rb', line 58
def register_current_instance
register_instance(current_instance_register_key)
end
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.register_instance(instance_name) ⇒ Object
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# File 'lib/sidekiq_alive.rb', line 150
def register_instance(instance_name)
redis.set(instance_name, time: Time.now.to_i, ex: config.registration_ttl.to_i)
end
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.registered_instances ⇒ Object
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# File 'lib/sidekiq_alive.rb', line 69
def registered_instances
redis.match("#{config.registered_instance_key}::*")
end
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.setup {|config| ... } ⇒ Object
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# File 'lib/sidekiq_alive.rb', line 109
def setup
yield(config)
end
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.shutdown_info ⇒ Object
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# File 'lib/sidekiq_alive.rb', line 129
def shutdown_info
"Shutting down sidekiq-alive!"
end
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.start ⇒ Object
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# File 'lib/sidekiq_alive.rb', line 13
def start
Sidekiq.configure_server do |sq_config|
sq_config.on(:startup) do
SidekiqAlive::Worker.sidekiq_options(queue: current_queue)
if Helpers.sidekiq_7
sq_config.queues
else
sq_config.respond_to?(:[]) ? sq_config[:queues] : sq_config.options[:queues]
end.unshift(current_queue)
if Helpers.sidekiq_7
sq_config.default_capsule.weights[current_queue] = 1
end
logger.info(startup_info)
register_current_instance
store_alive_key
SidekiqAlive::Worker.perform_async(hostname)
@server_pid = fork { SidekiqAlive::Server.run! }
logger.info(successful_startup_text)
end
sq_config.on(:quiet) do
unregister_current_instance
config.shutdown_callback.call
end
sq_config.on(:shutdown) do
Process.kill("TERM", @server_pid) unless @server_pid.nil?
Process.wait(@server_pid) unless @server_pid.nil?
unregister_current_instance
config.shutdown_callback.call
end
end
end
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.startup_info ⇒ Object
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# File 'lib/sidekiq_alive.rb', line 133
def startup_info
info = {
hostname: hostname,
port: config.port,
ttl: config.time_to_live,
queue: current_queue,
liveness_key: current_lifeness_key,
register_key: current_instance_register_key,
}
"Starting sidekiq-alive: #{info}"
end
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.store_alive_key ⇒ Object
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# File 'lib/sidekiq_alive.rb', line 95
def store_alive_key
redis.set(current_lifeness_key, time: Time.now.to_i, ex: config.time_to_live.to_i)
end
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.successful_startup_text ⇒ Object
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# File 'lib/sidekiq_alive.rb', line 146
def successful_startup_text
"Successfully started sidekiq-alive, registered with key: #{current_instance_register_key}"
end
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.unregister_current_instance ⇒ Object
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# File 'lib/sidekiq_alive.rb', line 62
def unregister_current_instance
logger.info(shutdown_info)
purge_pending_jobs
redis.delete(current_instance_register_key)
end
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