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
|
/**
* Copyright (C) 2008 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.
*/
#include "mongo/platform/basic.h"
#include "mongo/db/concurrency/d_concurrency.h"
#include "mongo/db/dbwebserver.h"
#include "mongo/db/operation_context.h"
#include "mongo/db/stats/snapshots.h"
#include "mongo/util/mongoutils/html.h"
namespace mongo {
namespace {
using namespace html;
class WriteLockStatus : public WebStatusPlugin {
public:
WriteLockStatus() : WebStatusPlugin( "write lock" , 51 , "% time in write lock, by 4 sec periods" ) {}
virtual void init() {}
virtual void run(OperationContext* txn, stringstream& ss) {
statsSnapshots.outputLockInfoHTML( ss );
ss << "<a "
"href=\"http://dochub.mongodb.org/core/concurrency\" "
"title=\"snapshot: was the db in the write lock when this page was generated?\">";
ss << "write locked now:</a> " << (txn->lockState()->isW() ? "true" : "false") << "\n";
}
} writeLockStatus;
class DBTopStatus : public WebStatusPlugin {
public:
DBTopStatus() : WebStatusPlugin( "dbtop" , 50 , "(occurrences|percent of elapsed)" ) {}
void display( stringstream& ss , double elapsed , const Top::UsageData& usage ) {
ss << "<td>";
ss << usage.count;
ss << "</td><td>";
double per = 100 * ((double)usage.time)/elapsed;
if( per == (int) per )
ss << (int) per;
else
ss << setprecision(1) << fixed << per;
ss << '%';
ss << "</td>";
}
void display( stringstream& ss , double elapsed , const string& ns , const Top::CollectionData& data ) {
if ( ns != "TOTAL" && data.total.count == 0 )
return;
ss << "<tr><th>" << html::escape( ns ) << "</th>";
display( ss , elapsed , data.total );
display( ss , elapsed , data.readLock );
display( ss , elapsed , data.writeLock );
display( ss , elapsed , data.queries );
display( ss , elapsed , data.getmore );
display( ss , elapsed , data.insert );
display( ss , elapsed , data.update );
display( ss , elapsed , data.remove );
ss << "</tr>\n";
}
void run(OperationContext* txn, stringstream& ss) {
auto_ptr<SnapshotDelta> delta = statsSnapshots.computeDelta();
if ( ! delta.get() )
return;
ss << "<table border=1 cellpadding=2 cellspacing=0>";
ss << "<tr align='left'><th>";
ss << a("http://dochub.mongodb.org/core/whatisanamespace", "namespace") <<
"NS</a></th>"
"<th colspan=2>total</th>"
"<th colspan=2>Reads</th>"
"<th colspan=2>Writes</th>"
"<th colspan=2>Queries</th>"
"<th colspan=2>GetMores</th>"
"<th colspan=2>Inserts</th>"
"<th colspan=2>Updates</th>"
"<th colspan=2>Removes</th>";
ss << "</tr>\n";
display( ss , (double) delta->elapsed() , "TOTAL" , delta->globalUsageDiff() );
Top::UsageMap usage = delta->collectionUsageDiff();
for ( Top::UsageMap::const_iterator i=usage.begin(); i != usage.end(); ++i ) {
display( ss , (double) delta->elapsed() , i->first , i->second );
}
ss << "</table>";
}
virtual void init() {}
} dbtopStatus;
} // namespace
} // namespace mongo
|
