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
|
/**
* 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.
*/
#pragma once
#include <string>
#include <vector>
#include "mongo/bson/bsonobj.h"
#include "mongo/db/namespace_string.h"
#include "mongo/db/operation_context.h"
#include "mongo/db/storage/recovery_unit.h"
namespace mongo {
struct WTimportArgs {
// Just the base name, no "table:" nor "file:" prefix. No ".wt" suffix.
std::string ident;
// When querying WT metadata for "table:<ident>"
std::string tableMetadata;
// When querying WT metadata for "file:<ident>.wt"
std::string fileMetadata;
};
struct WTIndexImportArgs final : WTimportArgs {
std::string indexName;
};
struct CollectionImportMetadata {
WTimportArgs collection;
mongo::NamespaceString ns;
// An _mdb_catalog document.
mongo::BSONObj catalogObject;
long long numRecords;
long long dataSize;
std::vector<WTIndexImportArgs> indexes;
};
/**
* After opening a backup cursor on a donor replica set and copying the donor's files to a local
* temp directory, use this function to roll back to the backup cursor's checkpoint timestamp and
* retrieve collection metadata.
*/
std::vector<CollectionImportMetadata> wiredTigerRollbackToStableAndGetMetadata(
OperationContext* opCtx, const std::string& importPath, const UUID& migrationId);
/**
* When preparing to import a collection within a WUOW, use RecoveryUnit::registerChange to
* update number/size of records when the import commits.
*/
std::unique_ptr<RecoveryUnit::Change> makeCountsChange(
RecordStore* recordStore, const CollectionImportMetadata& collectionMetadata);
} // namespace mongo
|