Class: Sidekiq::Client

Inherits:
Object
  • Object
show all
Includes:
JobUtil, TestingClient
Defined in:
lib/sidekiq/client.rb

Constant Summary

Constants included from JobUtil

JobUtil::TRANSIENT_ATTRIBUTES

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Methods included from JobUtil

#normalize_item, #normalized_hash, #validate, #verify_json

Constructor Details

#initialize(*args, **kwargs) ⇒ Client

Sidekiq::Client is responsible for pushing job payloads to Redis. Requires the :pool or :config keyword argument.

Sidekiq::Client.new(pool: Sidekiq::RedisConnection.create)

Inside the Sidekiq process, you can reuse the configured resources:

Sidekiq::Client.new(config: config)

Parameters:

  • pool (ConnectionPool) —

    explicit Redis pool to use

  • config (Sidekiq::Config) —

    use the pool and middleware from the given Sidekiq container

  • chain (Sidekiq::Middleware::Chain) —

    use the given middleware chain



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# File 'lib/sidekiq/client.rb', line 45

def initialize(*args, **kwargs)
  if args.size == 1 && kwargs.size == 0
    warn "Sidekiq::Client.new(pool) is deprecated, please use Sidekiq::Client.new(pool: pool), #{caller(0..3)}"
    # old calling method, accept 1 pool argument
    @redis_pool = args[0]
    @chain = Sidekiq.default_configuration.client_middleware
    @config = Sidekiq.default_configuration
  else
    # new calling method: keyword arguments
    @config = kwargs[:config] || Sidekiq.default_configuration
    @redis_pool = kwargs[:pool] || Thread.current[:sidekiq_redis_pool] || @config&.redis_pool
    @chain = kwargs[:chain] || @config&.client_middleware
    raise ArgumentError, "No Redis pool available for Sidekiq::Client" unless @redis_pool
  end
end

Instance Attribute Details

#redis_pool ⇒ Object

Returns the value of attribute redis_pool.



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# File 'lib/sidekiq/client.rb', line 31

def redis_pool
  @redis_pool
end

Class Method Details

.enqueue(klass, *args) ⇒ Object

Resque compatibility helpers. Note all helpers should go through Sidekiq::Job#client_push.

Example usage:

Sidekiq::Client.enqueue(MyJob, 'foo', 1, :bat => 'bar')

Messages are enqueued to the ‘default’ queue.



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# File 'lib/sidekiq/client.rb', line 186

def enqueue(klass, *args)
  klass.client_push("class" => klass, "args" => args)
end

.enqueue_in(interval, klass, *args) ⇒ Object

Example usage:

Sidekiq::Client.enqueue_in(3.minutes, MyJob, 'foo', 1, :bat => 'bar')



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# File 'lib/sidekiq/client.rb', line 214

def enqueue_in(interval, klass, *args)
  klass.perform_in(interval, *args)
end

.enqueue_to(queue, klass, *args) ⇒ Object

Example usage:

Sidekiq::Client.enqueue_to(:queue_name, MyJob, 'foo', 1, :bat => 'bar')



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# File 'lib/sidekiq/client.rb', line 193

def enqueue_to(queue, klass, *args)
  klass.client_push("queue" => queue, "class" => klass, "args" => args)
end

.enqueue_to_in(queue, interval, klass, *args) ⇒ Object

Example usage:

Sidekiq::Client.enqueue_to_in(:queue_name, 3.minutes, MyJob, 'foo', 1, :bat => 'bar')



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# File 'lib/sidekiq/client.rb', line 200

def enqueue_to_in(queue, interval, klass, *args)
  int = interval.to_f
  now = Time.now.to_f
  ts = ((int < 1_000_000_000) ? now + int : int)

  item = {"class" => klass, "args" => args, "at" => ts, "queue" => queue}
  item.delete("at") if ts <= now

  klass.client_push(item)
end

.push(item) ⇒ Object 



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# File 'lib/sidekiq/client.rb', line 170

def push(item)
  new.push(item)
end

.push_bulk ⇒ Object 



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# File 'lib/sidekiq/client.rb', line 174

def push_bulk(...)
  new.push_bulk(...)
end

.via(pool) ⇒ Object

Allows sharding of jobs across any number of Redis instances. All jobs defined within the block will use the given Redis connection pool.

pool = ConnectionPool.new { Redis.new }
Sidekiq::Client.via(pool) do
  SomeJob.perform_async(1,2,3)
  SomeOtherJob.perform_async(1,2,3)
end

Generally this is only needed for very large Sidekiq installs processing thousands of jobs per second. I do not recommend sharding unless you cannot scale any other way (e.g. splitting your app into smaller apps).



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# File 'lib/sidekiq/client.rb', line 160

def self.via(pool)
  raise ArgumentError, "No pool given" if pool.nil?
  current_sidekiq_pool = Thread.current[:sidekiq_redis_pool]
  Thread.current[:sidekiq_redis_pool] = pool
  yield
ensure
  Thread.current[:sidekiq_redis_pool] = current_sidekiq_pool
end

Instance Method Details

#middleware(&block) ⇒ Object

Define client-side middleware:

client = Sidekiq::Client.new
client.middleware do |chain|
  chain.use MyClientMiddleware
end
client.push('class' => 'SomeJob', 'args' => [1,2,3])

All client instances default to the globally-defined Sidekiq.client_middleware but you can change as necessary.



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# File 'lib/sidekiq/client.rb', line 23

def middleware(&block)
  if block
    @chain = @chain.dup
    yield @chain
  end
  @chain
end

#push(item) ⇒ Object

The main method used to push a job to Redis. Accepts a number of options:

queue - the named queue to use, default 'default'
class - the job class to call, required
args - an array of simple arguments to the perform method, must be JSON-serializable
at - timestamp to schedule the job (optional), must be Numeric (e.g. Time.now.to_f)
retry - whether to retry this job if it fails, default true or an integer number of retries
backtrace - whether to save any error backtrace, default false

If class is set to the class name, the jobs’ options will be based on Sidekiq’s default job options. Otherwise, they will be based on the job class’s options.

Any options valid for a job class’s sidekiq_options are also available here.

All options must be strings, not symbols. NB: because we are serializing to JSON, all symbols in ‘args’ will be converted to strings. Note that backtrace: true can take quite a bit of space in Redis; a large volume of failing jobs can start Redis swapping if you aren’t careful.

Returns a unique Job ID. If middleware stops the job, nil will be returned instead.

Example:

push('queue' => 'my_queue', 'class' => MyJob, 'args' => ['foo', 1, :bat => 'bar'])



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# File 'lib/sidekiq/client.rb', line 85

def push(item)
  normed = normalize_item(item)
  payload = middleware.invoke(item["class"], normed, normed["queue"], @redis_pool) do
    normed
  end
  if payload
    verify_json(payload)
    raw_push([payload])
    payload["jid"]
  end
end

#push_bulk(items) ⇒ Object

Push a large number of jobs to Redis. This method cuts out the redis network round trip latency. It pushes jobs in batches if more than ‘:batch_size` (1000 by default) of jobs are passed. I wouldn’t recommend making ‘:batch_size` larger than 1000 but YMMV based on network quality, size of job args, etc. A large number of jobs can cause a bit of Redis command processing latency.

Takes the same arguments as #push except that args is expected to be an Array of Arrays. All other keys are duplicated for each job. Each job is run through the client middleware pipeline and each job gets its own Job ID as normal.

Returns an array of the of pushed jobs’ jids, may contain nils if any client middleware prevented a job push.

Example (pushing jobs in batches):

push_bulk('class' => 'MyJob', 'args' => (1..100_000).to_a, batch_size: 1_000)

Raises:

  • (ArgumentError) 


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# File 'lib/sidekiq/client.rb', line 115

def push_bulk(items)
  batch_size = items.delete(:batch_size) || items.delete("batch_size") || 1_000
  args = items["args"]
  at = items.delete("at")
  raise ArgumentError, "Job 'at' must be a Numeric or an Array of Numeric timestamps" if at && (Array(at).empty? || !Array(at).all? { |entry| entry.is_a?(Numeric) })
  raise ArgumentError, "Job 'at' Array must have same size as 'args' Array" if at.is_a?(Array) && at.size != args.size

  jid = items.delete("jid")
  raise ArgumentError, "Explicitly passing 'jid' when pushing more than one job is not supported" if jid && args.size > 1

  normed = normalize_item(items)
  result = args.each_slice(batch_size).flat_map do |slice|
    raise ArgumentError, "Bulk arguments must be an Array of Arrays: [[1], [2]]" unless slice.is_a?(Array) && slice.all?(Array)
    break [] if slice.empty? # no jobs to push

    payloads = slice.map.with_index { |job_args, index|
      copy = normed.merge("args" => job_args, "jid" => SecureRandom.hex(12))
      copy["at"] = (at.is_a?(Array) ? at[index] : at) if at
      result = middleware.invoke(items["class"], copy, copy["queue"], @redis_pool) do
        verify_json(copy)
        copy
      end
      result || nil
    }

    to_push = payloads.compact
    raw_push(to_push) unless to_push.empty?
    payloads.map { |payload| payload&.[]("jid") }
  end

  result.is_a?(Enumerator::Lazy) ? result.force : result
end