blob: 4b697b2ba0f348e2643438a6ec262d0f6f6c3ed7 (
plain)
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
|
require 'spec_helper'
describe Gitlab::Metrics::Samplers::UnicornSampler do
subject { described_class.new(1.second) }
describe '#sample' do
let(:unicorn) { Module.new }
let(:raindrops) { double('raindrops') }
let(:stats) { double('stats') }
before do
stub_const('Unicorn', unicorn)
stub_const('Raindrops::Linux', raindrops)
allow(raindrops).to receive(:unix_listener_stats).and_return({})
allow(raindrops).to receive(:tcp_listener_stats).and_return({})
end
context 'unicorn listens on unix sockets' do
let(:socket_address) { '/some/sock' }
let(:sockets) { [socket_address] }
before do
allow(unicorn).to receive(:listener_names).and_return(sockets)
end
it 'samples socket data' do
expect(raindrops).to receive(:unix_listener_stats).with(sockets)
subject.sample
end
context 'stats collected' do
before do
allow(stats).to receive(:active).and_return('active')
allow(stats).to receive(:queued).and_return('queued')
allow(raindrops).to receive(:unix_listener_stats).and_return({ socket_address => stats })
end
it 'updates metrics type unix and with addr' do
labels = { socket_type: 'unix', socket_address: socket_address }
expect(subject.metrics[:unicorn_active_connections]).to receive(:set).with(labels, 'active')
expect(subject.metrics[:unicorn_queued_connections]).to receive(:set).with(labels, 'queued')
subject.sample
end
end
end
context 'unicorn listens on tcp sockets' do
let(:tcp_socket_address) { '0.0.0.0:8080' }
let(:tcp_sockets) { [tcp_socket_address] }
before do
allow(unicorn).to receive(:listener_names).and_return(tcp_sockets)
end
it 'samples socket data' do
expect(raindrops).to receive(:tcp_listener_stats).with(tcp_sockets)
subject.sample
end
context 'stats collected' do
before do
allow(stats).to receive(:active).and_return('active')
allow(stats).to receive(:queued).and_return('queued')
allow(raindrops).to receive(:tcp_listener_stats).and_return({ tcp_socket_address => stats })
end
it 'updates metrics type unix and with addr' do
labels = { socket_type: 'tcp', socket_address: tcp_socket_address }
expect(subject.metrics[:unicorn_active_connections]).to receive(:set).with(labels, 'active')
expect(subject.metrics[:unicorn_queued_connections]).to receive(:set).with(labels, 'queued')
subject.sample
end
end
end
context 'unicorn workers' do
before do
allow(unicorn).to receive(:listener_names).and_return([])
end
context 'without http server' do
it "does set unicorn_workers to 0" do
expect(subject.metrics[:unicorn_workers]).to receive(:set).with({}, 0)
subject.sample
end
end
context 'with http server' do
let(:http_server_class) { Struct.new(:worker_processes) }
let!(:http_server) { http_server_class.new(5) }
before do
stub_const('Unicorn::HttpServer', http_server_class)
end
it "sets additional metrics" do
expect(subject.metrics[:unicorn_workers]).to receive(:set).with({}, 5)
subject.sample
end
end
end
end
describe '#start' do
context 'when enabled' do
before do
allow(subject).to receive(:enabled?).and_return(true)
end
it 'creates new thread' do
expect(Thread).to receive(:new)
subject.start
end
end
context 'when disabled' do
before do
allow(subject).to receive(:enabled?).and_return(false)
end
it "doesn't create new thread" do
expect(Thread).not_to receive(:new)
subject.start
end
end
end
end
|
