-
Notifications
You must be signed in to change notification settings - Fork 3.9k
/
rabbit_core_ff.erl
252 lines (226 loc) · 8.65 KB
/
rabbit_core_ff.erl
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
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
%% This Source Code Form is subject to the terms of the Mozilla Public
%% License, v. 2.0. If a copy of the MPL was not distributed with this
%% file, You can obtain one at https://mozilla.org/MPL/2.0/.
%%
%% Copyright (c) 2018-2023 VMware, Inc. or its affiliates. All rights reserved.
%%
-module(rabbit_core_ff).
-include_lib("kernel/include/logger.hrl").
-include_lib("rabbit_common/include/logging.hrl").
-export([direct_exchange_routing_v2_enable/1,
listener_records_in_ets_enable/1,
listener_records_in_ets_post_enable/1,
tracking_records_in_ets_enable/1,
tracking_records_in_ets_post_enable/1]).
-rabbit_feature_flag(
{classic_mirrored_queue_version,
#{desc => "Support setting version for classic mirrored queues",
stability => stable
}}).
-rabbit_feature_flag(
{quorum_queue,
#{desc => "Support queues of type `quorum`",
doc_url => "https://www.rabbitmq.com/quorum-queues.html",
stability => required
}}).
-rabbit_feature_flag(
{stream_queue,
#{desc => "Support queues of type `stream`",
doc_url => "https://www.rabbitmq.com/stream.html",
%%TODO remove compatibility code
stability => required,
depends_on => [quorum_queue]
}}).
-rabbit_feature_flag(
{implicit_default_bindings,
#{desc => "Default bindings are now implicit, instead of "
"being stored in the database",
stability => required
}}).
-rabbit_feature_flag(
{virtual_host_metadata,
#{desc => "Virtual host metadata (description, tags, etc)",
stability => required
}}).
-rabbit_feature_flag(
{maintenance_mode_status,
#{desc => "Maintenance mode status",
stability => required
}}).
-rabbit_feature_flag(
{user_limits,
#{desc => "Configure connection and channel limits for a user",
stability => required
}}).
-rabbit_feature_flag(
{stream_single_active_consumer,
#{desc => "Single active consumer for streams",
doc_url => "https://www.rabbitmq.com/stream.html",
stability => stable,
depends_on => [stream_queue]
}}).
-rabbit_feature_flag(
{feature_flags_v2,
#{desc => "Feature flags subsystem V2",
stability => required
}}).
-rabbit_feature_flag(
{direct_exchange_routing_v2,
#{desc => "v2 direct exchange routing implementation",
stability => stable,
depends_on => [feature_flags_v2, implicit_default_bindings],
callbacks => #{enable => {?MODULE, direct_exchange_routing_v2_enable}}
}}).
-rabbit_feature_flag(
{listener_records_in_ets,
#{desc => "Store listener records in ETS instead of Mnesia",
stability => stable,
depends_on => [feature_flags_v2],
callbacks => #{enable =>
{?MODULE, listener_records_in_ets_enable},
post_enable =>
{?MODULE, listener_records_in_ets_post_enable}}
}}).
-rabbit_feature_flag(
{tracking_records_in_ets,
#{desc => "Store tracking records in ETS instead of Mnesia",
stability => stable,
depends_on => [feature_flags_v2],
callbacks => #{enable =>
{?MODULE, tracking_records_in_ets_enable},
post_enable =>
{?MODULE, tracking_records_in_ets_post_enable}}
}}).
-rabbit_feature_flag(
{classic_queue_type_delivery_support,
#{desc => "Bug fix for classic queue deliveries using mixed versions",
doc_url => "https://github.com/rabbitmq/rabbitmq-server/issues/5931",
%%TODO remove compatibility code
stability => required,
depends_on => [stream_queue]
}}).
-rabbit_feature_flag(
{restart_streams,
#{desc => "Support for restarting streams with optional preferred next leader argument. "
"Used to implement stream leader rebalancing",
stability => stable,
depends_on => [stream_queue]
}}).
%% -------------------------------------------------------------------
%% Direct exchange routing v2.
%% -------------------------------------------------------------------
-spec direct_exchange_routing_v2_enable(Args) -> Ret when
Args :: rabbit_feature_flags:enable_callback_args(),
Ret :: rabbit_feature_flags:enable_callback_ret().
direct_exchange_routing_v2_enable(#{feature_name := FeatureName}) ->
TableName = rabbit_index_route,
ok = rabbit_table:wait([rabbit_route, rabbit_exchange], _Retry = true),
try
case rabbit_db_binding:create_index_route_table() of
ok ->
ok;
{error, Err} = Error ->
?LOG_ERROR(
"Feature flags: `~ts`: failed to add copy of table ~ts to "
"node ~tp: ~tp",
[FeatureName, TableName, node(), Err],
#{domain => ?RMQLOG_DOMAIN_FEAT_FLAGS}),
Error
end
catch throw:{error, Reason} ->
?LOG_ERROR(
"Feature flags: `~ts`: enable callback failure: ~tp",
[FeatureName, Reason],
#{domain => ?RMQLOG_DOMAIN_FEAT_FLAGS}),
{error, Reason}
end.
%% -------------------------------------------------------------------
%% Listener records moved from Mnesia to ETS.
%% -------------------------------------------------------------------
listener_records_in_ets_enable(#{feature_name := FeatureName}) ->
try
rabbit_mnesia:execute_mnesia_transaction(
fun () ->
_ = mnesia:lock({table, rabbit_listener}, read),
Listeners = mnesia:select(
rabbit_listener, [{'$1',[],['$1']}]),
lists:foreach(
fun(Listener) ->
ets:insert(rabbit_listener_ets, Listener)
end, Listeners)
end)
catch
throw:{error, {no_exists, rabbit_listener}} ->
ok;
throw:{error, Reason} ->
?LOG_ERROR(
"Feature flags: `~ts`: failed to migrate Mnesia table: ~tp",
[FeatureName, Reason],
#{domain => ?RMQLOG_DOMAIN_FEAT_FLAGS}),
{error, Reason}
end.
listener_records_in_ets_post_enable(#{feature_name := FeatureName}) ->
try
case mnesia:delete_table(rabbit_listener) of
{atomic, ok} ->
ok;
{aborted, {no_exists, _}} ->
ok;
{aborted, Err} ->
?LOG_ERROR(
"Feature flags: `~ts`: failed to delete Mnesia table: ~tp",
[FeatureName, Err],
#{domain => ?RMQLOG_DOMAIN_FEAT_FLAGS}),
ok
end
catch
throw:{error, Reason} ->
?LOG_ERROR(
"Feature flags: `~ts`: failed to delete Mnesia table: ~tp",
[FeatureName, Reason],
#{domain => ?RMQLOG_DOMAIN_FEAT_FLAGS}),
ok
end.
tracking_records_in_ets_enable(#{feature_name := FeatureName}) ->
try
rabbit_connection_tracking:migrate_tracking_records(),
rabbit_channel_tracking:migrate_tracking_records()
catch
throw:{error, {no_exists, _}} ->
ok;
throw:{error, Reason} ->
?LOG_ERROR(
"Enabling feature flag ~ts failed: ~tp",
[FeatureName, Reason],
#{domain => ?RMQLOG_DOMAIN_FEAT_FLAGS}),
{error, Reason}
end.
tracking_records_in_ets_post_enable(#{feature_name := FeatureName}) ->
try
[delete_table(FeatureName, Tab) ||
Tab <- rabbit_connection_tracking:get_all_tracked_connection_table_names_for_node(node())],
[delete_table(FeatureName, Tab) ||
Tab <- rabbit_channel_tracking:get_all_tracked_channel_table_names_for_node(node())]
catch
throw:{error, Reason} ->
?LOG_ERROR(
"Enabling feature flag ~ts failed: ~tp",
[FeatureName, Reason],
#{domain => ?RMQLOG_DOMAIN_FEAT_FLAGS}),
%% adheres to the callback interface
ok
end.
delete_table(FeatureName, Tab) ->
case mnesia:delete_table(Tab) of
{atomic, ok} ->
ok;
{aborted, {no_exists, _}} ->
ok;
{aborted, Err} ->
?LOG_ERROR(
"Enabling feature flag ~ts failed to delete mnesia table ~tp: ~tp",
[FeatureName, Tab, Err],
#{domain => ?RMQLOG_DOMAIN_FEAT_FLAGS}),
%% adheres to the callback interface
ok
end.