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
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
|
/**
* 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/db/catalog/collection_impl.h"
#include "mongo/base/counter.h"
#include "mongo/base/owned_pointer_map.h"
#include "mongo/db/catalog/database.h"
#include "mongo/db/catalog/document_validation.h"
#include "mongo/db/catalog/index_key_validate.h"
#include "mongo/db/catalog/multi_index_block.h"
#include "mongo/db/clientcursor.h"
#include "mongo/db/commands/server_status.h"
#include "mongo/db/curop.h"
#include "mongo/db/index/index_access_method.h"
#include "mongo/db/index/index_descriptor.h"
#include "mongo/db/operation_context.h"
#include "mongo/util/log.h"
namespace mongo {
namespace {
class MyCompactAdaptor : public RecordStoreCompactAdaptor {
public:
MyCompactAdaptor(Collection* collection, MultiIndexBlock* indexBlock)
: _collection(collection), _multiIndexBlock(indexBlock) {}
virtual bool isDataValid(const RecordData& recData) {
// Use the latest BSON validation version. We allow compaction of collections containing
// decimal data even if decimal is disabled.
return recData.toBson().valid(BSONVersion::kLatest);
}
virtual size_t dataSize(const RecordData& recData) {
return recData.toBson().objsize();
}
virtual void inserted(const RecordData& recData, const RecordId& newLocation) {
_multiIndexBlock->insert(recData.toBson(), newLocation).transitional_ignore();
}
private:
Collection* _collection;
MultiIndexBlock* _multiIndexBlock;
};
}
StatusWith<CompactStats> CollectionImpl::compact(OperationContext* opCtx,
const CompactOptions* compactOptions) {
dassert(opCtx->lockState()->isCollectionLockedForMode(ns().toString(), MODE_X));
DisableDocumentValidation validationDisabler(opCtx);
if (!_recordStore->compactSupported())
return StatusWith<CompactStats>(ErrorCodes::CommandNotSupported,
str::stream()
<< "cannot compact collection with record store: "
<< _recordStore->name());
if (_recordStore->compactsInPlace()) {
CompactStats stats;
Status status = _recordStore->compact(opCtx, NULL, compactOptions, &stats);
if (!status.isOK())
return StatusWith<CompactStats>(status);
// Compact all indexes (not including unfinished indexes)
IndexCatalog::IndexIterator ii(_indexCatalog->getIndexIterator(opCtx, false));
while (ii.more()) {
IndexDescriptor* descriptor = ii.next();
IndexAccessMethod* index = _indexCatalog->getIndex(descriptor);
LOG(1) << "compacting index: " << descriptor->toString();
Status status = index->compact(opCtx);
if (!status.isOK()) {
error() << "failed to compact index: " << descriptor->toString();
return status;
}
}
return StatusWith<CompactStats>(stats);
}
if (_indexCatalog->numIndexesInProgress(opCtx))
return StatusWith<CompactStats>(ErrorCodes::BadValue,
"cannot compact when indexes in progress");
std::vector<BSONObj> indexSpecs;
{
IndexCatalog::IndexIterator ii(_indexCatalog->getIndexIterator(opCtx, false));
while (ii.more()) {
IndexDescriptor* descriptor = ii.next();
// Compact always creates the new index in the foreground.
const BSONObj spec =
descriptor->infoObj().removeField(IndexDescriptor::kBackgroundFieldName);
const BSONObj key = spec.getObjectField("key");
const Status keyStatus =
index_key_validate::validateKeyPattern(key, descriptor->version());
if (!keyStatus.isOK()) {
return StatusWith<CompactStats>(
ErrorCodes::CannotCreateIndex,
str::stream() << "Cannot compact collection due to invalid index " << spec
<< ": "
<< keyStatus.reason()
<< " For more info see"
<< " http://dochub.mongodb.org/core/index-validation");
}
indexSpecs.push_back(spec);
}
}
// Give a chance to be interrupted *before* we drop all indexes.
opCtx->checkForInterrupt();
{
// note that the drop indexes call also invalidates all clientcursors for the namespace,
// which is important and wanted here
WriteUnitOfWork wunit(opCtx);
log() << "compact dropping indexes";
_indexCatalog->dropAllIndexes(opCtx, true);
wunit.commit();
}
CompactStats stats;
auto indexerPtr = createMultiIndexBlock(opCtx);
MultiIndexBlock& indexer(*indexerPtr);
indexer.allowInterruption();
indexer.ignoreUniqueConstraint(); // in compact we should be doing no checking
Status status = indexer.init(indexSpecs).getStatus();
if (!status.isOK())
return StatusWith<CompactStats>(status);
MyCompactAdaptor adaptor(_this, &indexer);
status = _recordStore->compact(opCtx, &adaptor, compactOptions, &stats);
if (!status.isOK())
return StatusWith<CompactStats>(status);
log() << "starting index commits";
status = indexer.doneInserting();
if (!status.isOK())
return StatusWith<CompactStats>(status);
{
WriteUnitOfWork wunit(opCtx);
indexer.commit();
wunit.commit();
}
return StatusWith<CompactStats>(stats);
}
} // namespace mongo
|
