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
|
/**
* 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/platform/basic.h"
#include "mongo/db/storage/wiredtiger/wiredtiger_server_status.h"
#include "mongo/base/checked_cast.h"
#include "mongo/bson/bsonobjbuilder.h"
#include "mongo/db/concurrency/d_concurrency.h"
#include "mongo/db/db_raii.h"
#include "mongo/db/namespace_string.h"
#include "mongo/db/storage/wiredtiger/wiredtiger_kv_engine.h"
#include "mongo/db/storage/wiredtiger/wiredtiger_record_store.h"
#include "mongo/db/storage/wiredtiger/wiredtiger_recovery_unit.h"
#include "mongo/db/storage/wiredtiger/wiredtiger_session_cache.h"
#include "mongo/db/storage/wiredtiger/wiredtiger_util.h"
#include "mongo/util/assert_util.h"
namespace mongo {
using std::string;
WiredTigerServerStatusSection::WiredTigerServerStatusSection(WiredTigerKVEngine* engine)
: ServerStatusSection(kWiredTigerEngineName), _engine(engine) {}
bool WiredTigerServerStatusSection::includeByDefault() const {
return true;
}
BSONObj WiredTigerServerStatusSection::generateSection(OperationContext* opCtx,
const BSONElement& configElement) const {
Lock::GlobalLock lk(opCtx, LockMode::MODE_IS);
// The session does not open a transaction here as one is not needed and opening one would
// mean that execution could become blocked when a new transaction cannot be allocated
// immediately.
WiredTigerSession* session = WiredTigerRecoveryUnit::get(opCtx)->getSessionNoTxn();
invariant(session);
WT_SESSION* s = session->getSession();
invariant(s);
const string uri = "statistics:";
// Filter out unrelevant statistic fields.
std::vector<std::string> fieldsToIgnore = {"LSM"};
BSONObjBuilder bob;
Status status =
WiredTigerUtil::exportTableToBSON(s, uri, "statistics=(fast)", &bob, fieldsToIgnore);
if (!status.isOK()) {
bob.append("error", "unable to retrieve statistics");
bob.append("code", static_cast<int>(status.code()));
bob.append("reason", status.reason());
}
WiredTigerKVEngine::appendGlobalStats(bob);
WiredTigerUtil::appendSnapshotWindowSettings(_engine, session, &bob);
return bob.obj();
}
OplogStonesServerStatusSection::OplogStonesServerStatusSection()
: ServerStatusSection("oplogTruncation") {}
bool OplogStonesServerStatusSection::includeByDefault() const {
return true;
}
BSONObj OplogStonesServerStatusSection::generateSection(OperationContext* opCtx,
const BSONElement& configElement) const {
BSONObjBuilder builder;
{
AutoGetCollectionForReadCommand ctx(opCtx, NamespaceString::kRsOplogNamespace);
Collection* oplogColl = ctx.getCollection();
if (oplogColl) {
auto oplogRS = checked_cast<WiredTigerRecordStore*>(oplogColl->getRecordStore());
oplogRS->getOplogTruncateStats(builder);
}
}
return builder.obj();
}
} // namespace mongo
|