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
|
/**
* Copyright (C) 2014 MongoDB 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/db/query/query_knobs.h"
#include "mongo/db/server_options.h"
#include "mongo/db/server_parameters.h"
namespace mongo {
MONGO_EXPORT_SERVER_PARAMETER(internalQueryPlanEvaluationWorks, int, 10000);
MONGO_EXPORT_SERVER_PARAMETER(internalQueryPlanEvaluationCollFraction, double, 0.3);
MONGO_EXPORT_SERVER_PARAMETER(internalQueryPlanEvaluationMaxResults, int, 101);
MONGO_EXPORT_SERVER_PARAMETER(internalQueryCacheSize, int, 5000);
MONGO_EXPORT_SERVER_PARAMETER(internalQueryCacheFeedbacksStored, int, 20);
MONGO_EXPORT_SERVER_PARAMETER(internalQueryCacheEvictionRatio, double, 10.0);
MONGO_EXPORT_SERVER_PARAMETER(internalQueryCacheWriteOpsBetweenFlush, int, 1000);
MONGO_EXPORT_SERVER_PARAMETER(internalQueryPlannerMaxIndexedSolutions, int, 64);
MONGO_EXPORT_SERVER_PARAMETER(internalQueryEnumerationMaxOrSolutions, int, 10);
MONGO_EXPORT_SERVER_PARAMETER(internalQueryEnumerationMaxIntersectPerAnd, int, 3);
MONGO_EXPORT_SERVER_PARAMETER(internalQueryForceIntersectionPlans, bool, false);
MONGO_EXPORT_SERVER_PARAMETER(internalQueryPlannerEnableIndexIntersection, bool, true);
MONGO_EXPORT_SERVER_PARAMETER(internalQueryPlannerEnableHashIntersection, bool, false);
MONGO_EXPORT_SERVER_PARAMETER(internalQueryPlanOrChildrenIndependently, bool, true);
MONGO_EXPORT_SERVER_PARAMETER(internalQueryMaxScansToExplode, int, 200);
MONGO_EXPORT_SERVER_PARAMETER(internalQueryExecMaxBlockingSortBytes, int, 32 * 1024 * 1024);
// Yield every 128 cycles or 10ms.
MONGO_EXPORT_SERVER_PARAMETER(internalQueryExecYieldIterations, int, 128);
MONGO_EXPORT_SERVER_PARAMETER(internalQueryExecYieldPeriodMS, int, 10);
} // namespace mongo
|