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
|
/**
* 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.
*/
#pragma once
#include "mongo/base/status.h"
#include "mongo/base/status_with.h"
#include "mongo/bson/bsonobj.h"
#include "mongo/db/catalog/multi_index_block.h"
#include "mongo/db/db_raii.h"
#include "mongo/db/namespace_string.h"
#include "mongo/db/repl/collection_bulk_loader.h"
#include "mongo/db/repl/storage_interface.h"
namespace mongo {
namespace repl {
/**
* Class in charge of building a collection during data loading (like initial sync).
*
* Note: Call commit when done inserting documents.
*/
class CollectionBulkLoaderImpl : public CollectionBulkLoader {
CollectionBulkLoaderImpl(const CollectionBulkLoaderImpl&) = delete;
CollectionBulkLoaderImpl& operator=(const CollectionBulkLoaderImpl&) = delete;
public:
struct Stats {
Date_t startBuildingIndexes;
Date_t endBuildingIndexes;
std::string toString() const;
BSONObj toBSON() const;
};
CollectionBulkLoaderImpl(ServiceContext::UniqueClient&& client,
ServiceContext::UniqueOperationContext&& opCtx,
std::unique_ptr<AutoGetCollection>&& autoColl,
const BSONObj& idIndexSpec);
virtual ~CollectionBulkLoaderImpl();
virtual Status init(const std::vector<BSONObj>& secondaryIndexSpecs) override;
virtual Status insertDocuments(const std::vector<BSONObj>::const_iterator begin,
const std::vector<BSONObj>::const_iterator end) override;
virtual Status commit() override;
CollectionBulkLoaderImpl::Stats getStats() const;
virtual std::string toString() const override;
virtual BSONObj toBSON() const override;
private:
void _releaseResources();
template <typename F>
Status _runTaskReleaseResourcesOnFailure(const F& task) noexcept;
/**
* For capped collections, each document will be inserted in its own WriteUnitOfWork.
*/
Status _insertDocumentsForCappedCollection(const std::vector<BSONObj>::const_iterator begin,
const std::vector<BSONObj>::const_iterator end);
/**
* For uncapped collections, we will insert documents in batches of size
* collectionBulkLoaderBatchSizeInBytes or up to one document size greater. All insertions in a
* given batch will be inserted in one WriteUnitOfWork.
*/
Status _insertDocumentsForUncappedCollection(const std::vector<BSONObj>::const_iterator begin,
const std::vector<BSONObj>::const_iterator end);
/**
* Adds document and associated RecordId to index blocks after inserting into RecordStore.
*/
Status _addDocumentToIndexBlocks(const BSONObj& doc, const RecordId& loc);
ServiceContext::UniqueClient _client;
ServiceContext::UniqueOperationContext _opCtx;
std::unique_ptr<AutoGetCollection> _collection;
NamespaceString _nss;
std::unique_ptr<MultiIndexBlock> _idIndexBlock;
std::unique_ptr<MultiIndexBlock> _secondaryIndexesBlock;
BSONObj _idIndexSpec;
Stats _stats;
};
} // namespace repl
} // namespace mongo
|