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
|
/**
* 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.
*/
#define MONGO_LOG_DEFAULT_COMPONENT ::mongo::logger::LogComponent::kStorage
#include "mongo/platform/basic.h"
#include <string>
#include "mongo/db/auth/authorization_session.h"
#include "mongo/db/catalog/collection.h"
#include "mongo/db/catalog/collection_catalog_entry.h"
#include "mongo/db/catalog/database_holder.h"
#include "mongo/db/commands.h"
#include "mongo/db/db_raii.h"
#include "mongo/db/jsobj.h"
#include "mongo/db/operation_context.h"
#include "mongo/db/storage/durable_catalog.h"
#include "mongo/util/log.h"
#include "mongo/util/scopeguard.h"
namespace mongo {
namespace {
class CmdReplSetResizeOplog : public BasicCommand {
public:
CmdReplSetResizeOplog() : BasicCommand("replSetResizeOplog") {}
AllowedOnSecondary secondaryAllowed(ServiceContext*) const override {
return AllowedOnSecondary::kAlways;
}
bool adminOnly() const final {
return true;
}
virtual bool supportsWriteConcern(const BSONObj& cmd) const override {
return false;
}
std::string help() const override {
return "resize oplog size in MB";
}
Status checkAuthForCommand(Client* client,
const std::string& dbname,
const BSONObj& cmdObj) const final {
AuthorizationSession* authzSession = AuthorizationSession::get(client);
if (authzSession->isAuthorizedForActionsOnResource(ResourcePattern::forClusterResource(),
ActionType::replSetResizeOplog)) {
return Status::OK();
}
return Status(ErrorCodes::Unauthorized, "Unauthorized");
}
bool run(OperationContext* opCtx,
const std::string& dbname,
const BSONObj& jsobj,
BSONObjBuilder& result) {
const NamespaceString nss("local", "oplog.rs");
Lock::GlobalWrite global(opCtx);
auto databaseHolder = DatabaseHolder::get(opCtx);
auto database = databaseHolder->getDb(opCtx, nss.db());
if (!database) {
uasserted(ErrorCodes::NamespaceNotFound, "database local does not exist");
}
Collection* coll = database->getCollection(opCtx, nss);
if (!coll) {
uasserted(ErrorCodes::NamespaceNotFound, "oplog does not exist");
}
if (!coll->isCapped()) {
uasserted(ErrorCodes::IllegalOperation, "oplog isn't capped");
}
if (!jsobj["size"].isNumber()) {
uasserted(ErrorCodes::InvalidOptions, "invalid size field, size should be a number");
}
long long sizeMb = jsobj["size"].numberLong();
if (sizeMb < 990L) {
uasserted(ErrorCodes::InvalidOptions, "oplog size should be 990MB at least");
}
const long long kMB = 1024 * 1024;
const long long kPB = kMB * 1024 * 1024 * 1024;
if (sizeMb > kPB / kMB) {
uasserted(ErrorCodes::InvalidOptions, "oplog size in MB cannot exceed maximum of 1PB");
}
long long size = sizeMb * kMB;
WriteUnitOfWork wunit(opCtx);
Status status = coll->getRecordStore()->updateCappedSize(opCtx, size);
uassertStatusOK(status);
DurableCatalog::get(opCtx)->updateCappedSize(opCtx, coll->ns(), size);
wunit.commit();
LOG(0) << "replSetResizeOplog success, currentSize:" << size;
return true;
}
} cmdReplSetResizeOplog;
} // namespace
} // namespace mongo
|
