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
|
# frozen_string_literal: true
# rubocop:todo all
require_relative './adds_diagnostics'
module PerformsLegacyRetries
shared_examples 'it performs legacy retries' do
require_warning_clean
context 'for connection error' do
before do
client.use('admin').command(
configureFailPoint: 'failCommand',
mode: { times: 1 },
data: {
failCommands: [command_name],
closeConnection: true,
}
)
end
it 'does not retry the operation' do
expect(Mongo::Logger.logger).not_to receive(:warn).with(/legacy/)
expect do
perform_operation
end.to raise_error(Mongo::Error::SocketError)
expect(actual_result).to eq(expected_failed_result)
end
end
context 'for ETIMEDOUT' do
min_server_fcv '4.4'
# shorten socket timeout so these tests take less time to run
let(:socket_timeout) { 1 }
before do
client.use('admin').command(
configureFailPoint: 'failCommand',
mode: { times: 1 },
data: {
failCommands: [command_name],
blockConnection: true,
blockTimeMS: 1100,
}
)
end
it 'does not retry the operation' do
expect(Mongo::Logger.logger).not_to receive(:warn).with(/legacy/)
expect do
perform_operation
end.to raise_error(Mongo::Error::SocketTimeoutError)
end
after do
# Assure that the server has completed the operation before moving
# on to the next test.
sleep 1
end
end
context 'on server versions >= 4.4' do
min_server_fcv '4.4'
context 'for OperationFailure with RetryableWriteError label' do
before do
client.use('admin').command(
configureFailPoint: 'failCommand',
mode: { times: times },
data: {
failCommands: [command_name],
errorCode: 5, # normally NOT a retryable error code
errorLabels: ['RetryableWriteError']
}
)
end
context 'when error occurs once' do
let(:times) { 1 }
it 'retries and the operation and succeeds' do
expect(Mongo::Logger.logger).to receive(:warn).once.with(/legacy/).and_call_original
perform_operation
expect(actual_result).to eq(expected_successful_result)
end
end
context 'when error occurs twice' do
let(:times) { 2 }
it 'retries the operation and fails' do
expect(Mongo::Logger.logger).to receive(:warn).once.with(/legacy/).and_call_original
expect do
perform_operation
end.to raise_error(Mongo::Error::OperationFailure, /5/)
expect(actual_result).to eq(expected_failed_result)
end
it_behaves_like 'it adds diagnostics'
context 'and max_write_retries is set to 2' do
let(:max_write_retries) { 2 }
it 'retries twice and the operation succeeds' do
expect(Mongo::Logger.logger).to receive(:warn).twice.with(/legacy/).and_call_original
perform_operation
expect(actual_result).to eq(expected_successful_result)
end
end
end
end
context 'for OperationFailure without RetryableWriteError label' do
before do
client.use('admin').command(
configureFailPoint: 'failCommand',
mode: { times: 1 },
data: {
failCommands: [command_name],
errorCode: 91, # normally a retryable error code
errorLabels: [],
}
)
end
it 'raises the error' do
expect(Mongo::Logger.logger).not_to receive(:warn)
expect do
perform_operation
end.to raise_error(Mongo::Error::OperationFailure, /91/)
expect(actual_result).to eq(expected_failed_result)
end
end
end
context 'on server versions < 4.4' do
max_server_fcv '4.2'
context 'for OperationFailure with retryable code' do
before do
client.use('admin').command(
configureFailPoint: 'failCommand',
mode: { times: times },
data: {
failCommands: [command_name],
errorCode: 91, # a retryable error code
}
)
end
context 'when error occurs once' do
let(:times) { 1 }
it 'retries and the operation and succeeds' do
expect(Mongo::Logger.logger).to receive(:warn).once.with(/legacy/).and_call_original
perform_operation
expect(actual_result).to eq(expected_successful_result)
end
end
context 'when error occurs twice' do
let(:times) { 2 }
it 'retries and the operation and fails' do
expect(Mongo::Logger.logger).to receive(:warn).once.with(/legacy/).and_call_original
expect do
perform_operation
end.to raise_error(Mongo::Error::OperationFailure, /91/)
expect(actual_result).to eq(expected_failed_result)
end
it_behaves_like 'it adds diagnostics'
context 'and max_write_retries is set to 2' do
let(:max_write_retries) { 2 }
it 'retries twice and the operation succeeds' do
expect(Mongo::Logger.logger).to receive(:warn).twice.with(/legacy/).and_call_original
perform_operation
expect(actual_result).to eq(expected_successful_result)
end
end
end
end
context 'for OperationFailure with non-retryable code' do
before do
client.use('admin').command(
configureFailPoint: 'failCommand',
mode: { times: 1 },
data: {
failCommands: [command_name],
errorCode: 5, # a non-retryable error code
}
)
end
it 'raises the error' do
expect(Mongo::Logger.logger).not_to receive(:warn)
expect do
perform_operation
end.to raise_error(Mongo::Error::OperationFailure, /5/)
expect(actual_result).to eq(expected_failed_result)
end
end
end
end
end
|
