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
|
/**
* Copyright (C) 2021-present MongoDB, Inc.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the Server Side Public License, version 1,
* as published by MongoDB, Inc.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* Server Side Public License for more details.
*
* You should have received a copy of the Server Side Public License
* along with this program. If not, see
* <http://www.mongodb.com/licensing/server-side-public-license>.
*
* As a special exception, the copyright holders give permission to link the
* code of portions of this program with the OpenSSL library under certain
* conditions as described in each individual source file and distribute
* linked combinations including the program with the OpenSSL library. You
* must comply with the Server Side Public License in all respects for
* all of the code used other than as permitted herein. If you modify file(s)
* with this exception, you may extend this exception to your version of the
* file(s), but you are not obligated to do so. If you do not wish to do so,
* delete this exception statement from your version. If you delete this
* exception statement from all source files in the program, then also delete
* it in the license file.
*/
#include "mongo/platform/basic.h"
#include "mongo/db/auth/action_set.h"
#include "mongo/db/auth/action_type.h"
#include "mongo/db/auth/authorization_session.h"
#include "mongo/db/auth/privilege.h"
#include "mongo/db/catalog_raii.h"
#include "mongo/db/client.h"
#include "mongo/db/commands.h"
#include "mongo/db/op_observer/op_observer.h"
#include "mongo/db/operation_context.h"
#include "mongo/db/repl/repl_client_info.h"
#include "mongo/db/s/resharding/resharding_util.h"
#include "mongo/db/s/shard_filtering_metadata_refresh.h"
#include "mongo/db/s/sharding_state.h"
#include "mongo/logv2/log.h"
#include "mongo/s/catalog_cache_loader.h"
#include "mongo/s/grid.h"
#include "mongo/s/request_types/flush_resharding_state_change_gen.h"
#define MONGO_LOGV2_DEFAULT_COMPONENT ::mongo::logv2::LogComponent::kResharding
namespace mongo {
namespace {
class FlushReshardingStateChangeCmd final : public TypedCommand<FlushReshardingStateChangeCmd> {
public:
using Request = _flushReshardingStateChange;
bool skipApiVersionCheck() const override {
// Internal command (server to server).
return true;
}
std::string help() const override {
return "Internal command used by the resharding coordinator to flush state changes to the "
"participant shards while the critical section is active.";
}
bool adminOnly() const override {
return true;
}
Command::AllowedOnSecondary secondaryAllowed(ServiceContext*) const override {
return Command::AllowedOnSecondary::kNever;
}
class Invocation final : public InvocationBase {
public:
using InvocationBase::InvocationBase;
bool supportsWriteConcern() const override {
return true;
}
NamespaceString ns() const override {
return request().getCommandParameter();
}
UUID reshardingUUID() const {
return request().getReshardingUUID();
}
void doCheckAuthorization(OperationContext* opCtx) const override {
uassert(ErrorCodes::Unauthorized,
"Unauthorized",
AuthorizationSession::get(opCtx->getClient())
->isAuthorizedForActionsOnResource(ResourcePattern::forClusterResource(),
ActionType::internal));
}
void typedRun(OperationContext* opCtx) {
auto const shardingState = ShardingState::get(opCtx);
uassertStatusOK(shardingState->canAcceptShardedCommands());
uassert(ErrorCodes::IllegalOperation,
"Can't issue _flushReshardingStateChange from 'eval'",
!opCtx->getClient()->isInDirectClient());
uassert(ErrorCodes::IllegalOperation,
"Can't call _flushReshardingStateChange if in read-only mode",
!opCtx->readOnly());
ExecutorFuture<void>(Grid::get(opCtx)->getExecutorPool()->getArbitraryExecutor())
.then([svcCtx = opCtx->getServiceContext(), nss = ns()] {
ThreadClient tc("FlushReshardingStateChange", svcCtx);
auto opCtx = tc->makeOperationContext();
onCollectionPlacementVersionMismatch(
opCtx.get(), nss, boost::none /* chunkVersionReceived */);
})
.onError([](const Status& status) {
LOGV2_WARNING(5808100,
"Error on deferred _flushReshardingStateChange execution",
"error"_attr = redact(status));
})
.getAsync([](auto) {});
// Ensure the command isn't run on a stale primary.
resharding::doNoopWrite(opCtx, "_flushReshardingStateChange no-op", ns());
}
};
} _flushReshardingStateChange;
} // namespace
} // namespace mongo
|
