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
|
/**
* Copyright (C) 2018-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/db/auth/action_set.h"
#include "mongo/db/auth/authorization_session.h"
#include "mongo/db/auth/resource_pattern.h"
#include "mongo/db/catalog/document_validation.h"
#include "mongo/db/cloner.h"
#include "mongo/db/commands.h"
#include "mongo/db/concurrency/d_concurrency.h"
#include "mongo/db/dbdirectclient.h"
#include "mongo/db/s/sharding_state.h"
#include "mongo/rpc/get_status_from_command_result.h"
#include "mongo/s/grid.h"
#include "mongo/s/request_types/clone_catalog_data_gen.h"
#define MONGO_LOGV2_DEFAULT_COMPONENT ::mongo::logv2::LogComponent::kSharding
namespace mongo {
namespace {
/**
* Currently, _shardsvrCloneCatalogData will clone all data (including metadata). In the second part
* of
* PM-1017 (Introduce Database Versioning in Sharding Config) this command will be changed to only
* clone catalog metadata, as the name would suggest.
*/
class CloneCatalogDataCommand : public BasicCommand {
public:
CloneCatalogDataCommand() : BasicCommand("_shardsvrCloneCatalogData", "_cloneCatalogData") {}
bool skipApiVersionCheck() const override {
// Internal command (server to server).
return true;
}
AllowedOnSecondary secondaryAllowed(ServiceContext*) const override {
return AllowedOnSecondary::kNever;
}
virtual bool adminOnly() const {
return true;
}
virtual bool supportsWriteConcern(const BSONObj& cmd) const override {
return true;
}
Status checkAuthForOperation(OperationContext* opCtx,
const DatabaseName&,
const BSONObj&) const override {
if (!AuthorizationSession::get(opCtx->getClient())
->isAuthorizedForActionsOnResource(ResourcePattern::forClusterResource(),
ActionType::internal)) {
return Status(ErrorCodes::Unauthorized, "Unauthorized");
}
return Status::OK();
}
bool run(OperationContext* opCtx,
const DatabaseName&,
const BSONObj& cmdObj,
BSONObjBuilder& result) override {
auto shardingState = ShardingState::get(opCtx);
uassertStatusOK(shardingState->canAcceptShardedCommands());
uassert(ErrorCodes::IllegalOperation,
str::stream() << "_shardsvrCloneCatalogData can only be run on shard servers",
serverGlobalParams.clusterRole == ClusterRole::ShardServer);
CommandHelpers::uassertCommandRunWithMajority(getName(), opCtx->getWriteConcern());
const auto cloneCatalogDataRequest =
CloneCatalogData::parse(IDLParserContext("_shardsvrCloneCatalogData"), cmdObj);
const auto dbname = cloneCatalogDataRequest.getCommandParameter().toString();
uassert(
ErrorCodes::InvalidNamespace,
str::stream() << "invalid db name specified: " << dbname,
NamespaceString::validDBName(dbname, NamespaceString::DollarInDbNameBehavior::Allow));
uassert(ErrorCodes::InvalidOptions,
str::stream() << "Can't clone catalog data for " << dbname << " database",
dbname != DatabaseName::kAdmin.db() && dbname != DatabaseName::kConfig.db() &&
dbname != DatabaseName::kLocal.db());
auto from = cloneCatalogDataRequest.getFrom();
uassert(ErrorCodes::InvalidOptions,
str::stream() << "Can't run _shardsvrCloneCatalogData without a source",
!from.empty());
auto const catalogClient = Grid::get(opCtx)->catalogClient();
const auto shardedColls = catalogClient->getAllShardedCollectionsForDb(
opCtx, dbname, repl::ReadConcernLevel::kMajorityReadConcern);
DisableDocumentValidation disableValidation(opCtx);
// Clone the non-ignored collections.
std::set<std::string> clonedColls;
Cloner cloner;
uassertStatusOK(cloner.copyDb(opCtx, dbname, from.toString(), shardedColls, &clonedColls));
{
BSONArrayBuilder cloneBarr = result.subarrayStart("clonedColls");
cloneBarr.append(clonedColls);
}
return true;
}
} cloneCatalogDataCmd;
} // namespace
} // namespace mongo
|