116 lines
3.1 KiB
Ruby
116 lines
3.1 KiB
Ruby
# frozen_string_literal: true
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module Gitlab
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# The SidekiqStatus module and its child classes can be used for checking if a
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# Sidekiq job has been processed or not.
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#
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# To check if a job has been completed, simply pass the job ID to the
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# `completed?` method:
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#
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# job_id = SomeWorker.perform_async(...)
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#
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# if Gitlab::SidekiqStatus.completed?(job_id)
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# ...
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# end
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#
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# For each job ID registered a separate key is stored in Redis, making lookups
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# much faster than using Sidekiq's built-in job finding/status API. These keys
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# expire after a certain period of time to prevent storing too many keys in
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# Redis.
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module SidekiqStatus
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STATUS_KEY = 'gitlab-sidekiq-status:%s'
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# The default time (in seconds) after which a status key is expired
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# automatically. The default of 30 minutes should be more than sufficient
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# for most jobs.
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DEFAULT_EXPIRATION = 30.minutes.to_i
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# Starts tracking of the given job.
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#
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# jid - The Sidekiq job ID
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# expire - The expiration time of the Redis key.
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def self.set(jid, expire = DEFAULT_EXPIRATION)
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Sidekiq.redis do |redis|
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redis.set(key_for(jid), 1, ex: expire)
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end
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end
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# Stops the tracking of the given job.
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#
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# jid - The Sidekiq job ID to remove.
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def self.unset(jid)
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Sidekiq.redis do |redis|
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redis.del(key_for(jid))
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end
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end
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# Returns true if all the given job have been completed.
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#
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# job_ids - The Sidekiq job IDs to check.
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#
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# Returns true or false.
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def self.all_completed?(job_ids)
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self.num_running(job_ids) == 0
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end
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# Returns true if the given job is running or enqueued.
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#
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# job_id - The Sidekiq job ID to check.
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def self.running?(job_id)
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num_running([job_id]) > 0
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end
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# Returns the number of jobs that are running or enqueued.
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#
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# job_ids - The Sidekiq job IDs to check.
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def self.num_running(job_ids)
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responses = self.job_status(job_ids)
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responses.select(&:present?).count
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end
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# Returns the number of jobs that have completed.
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#
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# job_ids - The Sidekiq job IDs to check.
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def self.num_completed(job_ids)
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job_ids.size - self.num_running(job_ids)
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end
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# Returns the job status for each of the given job IDs.
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#
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# job_ids - The Sidekiq job IDs to check.
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#
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# Returns an array of true or false indicating job completion.
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# true = job is still running or enqueued
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# false = job completed
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def self.job_status(job_ids)
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keys = job_ids.map { |jid| key_for(jid) }
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Sidekiq.redis do |redis|
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redis.pipelined do
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keys.each { |key| redis.exists(key) }
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end
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end
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end
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# Returns the JIDs that are completed
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#
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# job_ids - The Sidekiq job IDs to check.
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#
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# Returns an array of completed JIDs
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def self.completed_jids(job_ids)
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statuses = job_status(job_ids)
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completed = []
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job_ids.zip(statuses).each do |job_id, status|
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completed << job_id unless status
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end
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completed
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end
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def self.key_for(jid)
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STATUS_KEY % jid
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end
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end
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end
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