-
Notifications
You must be signed in to change notification settings - Fork 2.4k
/
client.rb
232 lines (205 loc) · 8.13 KB
/
client.rb
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
require 'securerandom'
require 'sidekiq/middleware/chain'
module Sidekiq
class Client
##
# Define client-side middleware:
#
# client = Sidekiq::Client.new
# client.middleware do |chain|
# chain.use MyClientMiddleware
# end
# client.push('class' => 'SomeWorker', 'args' => [1,2,3])
#
# All client instances default to the globally-defined
# Sidekiq.client_middleware but you can change as necessary.
#
def middleware(&block)
@chain ||= Sidekiq.client_middleware
if block_given?
@chain = @chain.dup
yield @chain
end
@chain
end
attr_accessor :redis_pool
# Sidekiq::Client normally uses the default Redis pool but you may
# pass a custom ConnectionPool if you want to shard your
# Sidekiq jobs across several Redis instances (for scalability
# reasons, e.g.)
#
# Sidekiq::Client.new(ConnectionPool.new { Redis.new })
#
# Generally this is only needed for very large Sidekiq installs processing
# more than thousands jobs per second. I do not recommend sharding unless
# you truly cannot scale any other way (e.g. splitting your app into smaller apps).
# Some features, like the API, do not support sharding: they are designed to work
# against a single Redis instance only.
def initialize(redis_pool=nil)
@redis_pool = redis_pool || Thread.current[:sidekiq_via_pool] || Sidekiq.redis_pool
end
##
# 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 worker class to call, required
# args - an array of simple arguments to the perform method, must be JSON-serializable
# retry - whether to retry this job if it fails, true or false, default true
# backtrace - whether to save any error backtrace, default false
#
# All options must be strings, not symbols. NB: because we are serializing to JSON, all
# symbols in 'args' will be converted to strings.
#
# Returns a unique Job ID. If middleware stops the job, nil will be returned instead.
#
# Example:
# push('queue' => 'my_queue', 'class' => MyWorker, 'args' => ['foo', 1, :bat => 'bar'])
#
def push(item)
normed = normalize_item(item)
payload = process_single(item['class'], normed)
if payload
raw_push([payload])
payload['jid']
end
end
##
# Push a large number of jobs to Redis. In practice this method is only
# useful if you are pushing tens of thousands of jobs or more, or if you need
# to ensure that a batch doesn't complete prematurely. This method
# basically cuts down on the redis round trip 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. The number of jobs pushed can be less
# than the number given if the middleware stopped processing for one or more jobs.
def push_bulk(items)
normed = normalize_item(items)
payloads = items['args'].map do |args|
raise ArgumentError, "Bulk arguments must be an Array of Arrays: [[1], [2]]" if !args.is_a?(Array)
process_single(items['class'], normed.merge('args' => args, 'jid' => SecureRandom.hex(12), 'enqueued_at' => Time.now.to_f))
end.compact
raw_push(payloads) if !payloads.empty?
payloads.collect { |payload| payload['jid'] }
end
# 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
# SomeWorker.perform_async(1,2,3)
# SomeOtherWorker.perform_async(1,2,3)
# end
#
# Generally this is only needed for very large Sidekiq installs processing
# more than thousands jobs per second. I do not recommend sharding unless
# you truly cannot scale any other way (e.g. splitting your app into smaller apps).
# Some features, like the API, do not support sharding: they are designed to work
# against a single Redis instance.
def self.via(pool)
raise ArgumentError, "No pool given" if pool.nil?
raise RuntimeError, "Sidekiq::Client.via is not re-entrant" if x = Thread.current[:sidekiq_via_pool] && x != pool
Thread.current[:sidekiq_via_pool] = pool
yield
ensure
Thread.current[:sidekiq_via_pool] = nil
end
class << self
def push(item)
new.push(item)
end
def push_bulk(items)
new.push_bulk(items)
end
# Resque compatibility helpers. Note all helpers
# should go through Worker#client_push.
#
# Example usage:
# Sidekiq::Client.enqueue(MyWorker, 'foo', 1, :bat => 'bar')
#
# Messages are enqueued to the 'default' queue.
#
def enqueue(klass, *args)
klass.client_push('class' => klass, 'args' => args)
end
# Example usage:
# Sidekiq::Client.enqueue_to(:queue_name, MyWorker, 'foo', 1, :bat => 'bar')
#
def enqueue_to(queue, klass, *args)
klass.client_push('queue' => queue, 'class' => klass, 'args' => args)
end
# Example usage:
# Sidekiq::Client.enqueue_to_in(:queue_name, 3.minutes, MyWorker, 'foo', 1, :bat => 'bar')
#
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'.freeze) if ts <= now
klass.client_push(item)
end
# Example usage:
# Sidekiq::Client.enqueue_in(3.minutes, MyWorker, 'foo', 1, :bat => 'bar')
#
def enqueue_in(interval, klass, *args)
klass.perform_in(interval, *args)
end
end
private
def raw_push(payloads)
@redis_pool.with do |conn|
conn.multi do
atomic_push(conn, payloads)
end
end
true
end
def atomic_push(conn, payloads)
if payloads.first['at']
conn.zadd('schedule'.freeze, payloads.map do |hash|
at = hash.delete('at'.freeze).to_s
[at, Sidekiq.dump_json(hash)]
end)
else
q = payloads.first['queue']
now = Time.now.to_f
to_push = payloads.map do |entry|
entry['enqueued_at'.freeze] = now
Sidekiq.dump_json(entry)
end
conn.sadd('queues'.freeze, q)
conn.lpush("queue:#{q}", to_push)
end
end
def process_single(worker_class, item)
queue = item['queue']
middleware.invoke(worker_class, item, queue, @redis_pool) do
item
end
end
def normalize_item(item)
raise(ArgumentError, "Job must be a Hash with 'class' and 'args' keys: { 'class' => SomeWorker, 'args' => ['bob', 1, :foo => 'bar'] }") unless item.is_a?(Hash) && item.has_key?('class'.freeze) && item.has_key?('args'.freeze)
raise(ArgumentError, "Job args must be an Array") unless item['args'].is_a?(Array)
raise(ArgumentError, "Job class must be either a Class or String representation of the class name") unless item['class'.freeze].is_a?(Class) || item['class'.freeze].is_a?(String)
normalized_hash(item['class'.freeze])
.each{ |key, value| item[key] = value if item[key].nil? }
item['class'.freeze] = item['class'.freeze].to_s
item['queue'.freeze] = item['queue'.freeze].to_s
item['jid'.freeze] ||= SecureRandom.hex(12)
item['created_at'.freeze] ||= Time.now.to_f
item
end
def normalized_hash(item_class)
if item_class.is_a?(Class)
raise(ArgumentError, "Message must include a Sidekiq::Worker class, not class name: #{item_class.ancestors.inspect}") if !item_class.respond_to?('get_sidekiq_options'.freeze)
item_class.get_sidekiq_options
else
Sidekiq.default_worker_options
end
end
end
end