debian-mirror-gitlab/lib/gitlab/sidekiq_status.rb
2022-01-26 12:08:38 +05:30

131 lines
3.7 KiB
Ruby

# frozen_string_literal: true
module Gitlab
# The SidekiqStatus module and its child classes can be used for checking if a
# Sidekiq job has been processed or not.
#
# To check if a job has been completed, simply pass the job ID to the
# `completed?` method:
#
# job_id = SomeWorker.with_status.perform_async(...)
#
# if Gitlab::SidekiqStatus.completed?(job_id)
# ...
# end
#
# If you do not use `with_status`, and the worker class does not declare
# `status_expiration` in its `sidekiq_options`, then this status will not be
# stored.
#
# For each job ID registered a separate key is stored in Redis, making lookups
# much faster than using Sidekiq's built-in job finding/status API. These keys
# expire after a certain period of time to prevent storing too many keys in
# Redis.
module SidekiqStatus
STATUS_KEY = 'gitlab-sidekiq-status:%s'
# The default time (in seconds) after which a status key is expired
# automatically. The default of 30 minutes should be more than sufficient
# for most jobs.
DEFAULT_EXPIRATION = 30.minutes.to_i
DEFAULT_VALUE = 1
DEFAULT_VALUE_MESSAGE = 'Keys using the default value for SidekiqStatus detected'
# Starts tracking of the given job.
#
# jid - The Sidekiq job ID
# expire - The expiration time of the Redis key.
def self.set(jid, expire = DEFAULT_EXPIRATION, value: DEFAULT_VALUE)
Sidekiq.redis do |redis|
redis.set(key_for(jid), value, ex: expire)
end
end
# Stops the tracking of the given job.
#
# jid - The Sidekiq job ID to remove.
def self.unset(jid)
Sidekiq.redis do |redis|
redis.del(key_for(jid))
end
end
# Returns true if all the given job have been completed.
#
# job_ids - The Sidekiq job IDs to check.
#
# Returns true or false.
def self.all_completed?(job_ids)
self.num_running(job_ids) == 0
end
# Returns true if the given job is running or enqueued.
#
# job_id - The Sidekiq job ID to check.
def self.running?(job_id)
num_running([job_id]) > 0
end
# Returns the number of jobs that are running or enqueued.
#
# job_ids - The Sidekiq job IDs to check.
def self.num_running(job_ids)
responses = self.job_status(job_ids)
responses.count(&:present?)
end
# Returns the number of jobs that have completed.
#
# job_ids - The Sidekiq job IDs to check.
def self.num_completed(job_ids)
job_ids.size - self.num_running(job_ids)
end
# Returns the job status for each of the given job IDs.
#
# job_ids - The Sidekiq job IDs to check.
#
# Returns an array of true or false indicating job completion.
# true = job is still running or enqueued
# false = job completed
def self.job_status(job_ids)
return [] if job_ids.empty?
keys = job_ids.map { |jid| key_for(jid) }
results = Sidekiq.redis { |redis| redis.mget(*keys) }
if Feature.enabled?(:log_implicit_sidekiq_status_calls, default_enabled: :yaml)
to_log = keys.zip(results).select do |_key, result|
result == DEFAULT_VALUE.to_s
end.map(&:first)
Sidekiq.logger.info(message: DEFAULT_VALUE_MESSAGE, keys: to_log) if to_log.any?
end
results.map { |result| !result.nil? }
end
# Returns the JIDs that are completed
#
# job_ids - The Sidekiq job IDs to check.
#
# Returns an array of completed JIDs
def self.completed_jids(job_ids)
statuses = job_status(job_ids)
completed = []
job_ids.zip(statuses).each do |job_id, status|
completed << job_id unless status
end
completed
end
def self.key_for(jid)
STATUS_KEY % jid
end
end
end