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
|
/* @file dur_commitjob.cpp */
/**
* Copyright (C) 2009 10gen Inc.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License, version 3,
* as published by the Free Software Foundation.
*
* 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
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
* 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 GNU Affero General 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 "mongo/db/storage/mmap_v1/dur_commitjob.h"
#include <iostream>
#include "mongo/db/storage/mmap_v1/dur.h"
#include "mongo/db/storage/mmap_v1/durable_mapped_file.h"
#include "mongo/db/storage/mmap_v1/dur_stats.h"
#include "mongo/util/log.h"
#include "mongo/util/stacktrace.h"
namespace mongo {
using std::shared_ptr;
using std::endl;
using std::max;
using std::min;
namespace dur {
void WriteIntent::absorb(const WriteIntent& other) {
dassert(overlaps(other));
void* newStart = min(start(), other.start());
p = max(p, other.p);
len = (char*)p - (char*)newStart;
dassert(contains(other));
}
CommitJob::CommitJob() : _hasWritten(false), _lastNotedPos(0), _bytes(0) {}
CommitJob::~CommitJob() {}
void CommitJob::noteOp(shared_ptr<DurOp> p) {
stdx::lock_guard<SimpleMutex> lk(groupCommitMutex);
_hasWritten = true;
_durOps.push_back(p);
}
void CommitJob::note(void* p, int len) {
_hasWritten = true;
if (!_alreadyNoted.checkAndSet(p, len)) {
// Remember intent. We will journal it in a bit.
_insertWriteIntent(p, len);
// Round off to page address (4KB).
const size_t x = ((size_t)p) & ~0xfff;
if (x != _lastNotedPos) {
_lastNotedPos = x;
// Add the full page amount
_bytes += (len + 4095) & ~0xfff;
if (_bytes > UncommittedBytesLimit * 3) {
_complains++;
// Throttle logging
if (_complains < 100 || (curTimeMillis64() - _lastComplainMs >= 60000)) {
_lastComplainMs = curTimeMillis64();
warning() << "DR102 too much data written uncommitted (" << _bytes / 1000000.0
<< "MB)";
if (_complains < 10 || _complains % 10 == 0) {
printStackTrace();
}
}
}
}
}
}
void CommitJob::committingReset() {
_hasWritten = false;
_alreadyNoted.clear();
_intents.clear();
_durOps.clear();
_bytes = 0;
}
} // namespace "dur"
} // namespace "mongo"
|
