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
|
/**
* 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/s/balancer/balancer_chunk_selection_policy.h"
#include "mongo/util/mongoutils/str.h"
namespace mongo {
BalancerChunkSelectionPolicy::BalancerChunkSelectionPolicy() = default;
BalancerChunkSelectionPolicy::~BalancerChunkSelectionPolicy() = default;
BalancerChunkSelectionPolicy::SplitInfo::SplitInfo(ShardId inShardId,
NamespaceString inNss,
ChunkVersion inCollectionVersion,
ChunkVersion inChunkVersion,
const BSONObj& inMinKey,
const BSONObj& inMaxKey,
std::vector<BSONObj> inSplitKeys)
: shardId(std::move(inShardId)),
nss(std::move(inNss)),
collectionVersion(inCollectionVersion),
chunkVersion(inChunkVersion),
minKey(inMinKey),
maxKey(inMaxKey),
splitKeys(std::move(inSplitKeys)) {}
std::string BalancerChunkSelectionPolicy::SplitInfo::toString() const {
StringBuilder splitKeysBuilder;
for (const auto& splitKey : splitKeys) {
splitKeysBuilder << splitKey.toString() << ", ";
}
return str::stream() << "Splitting chunk in " << nss.ns() << " [ " << minKey << ", " << maxKey
<< "), residing on " << shardId << " at [ " << splitKeysBuilder.str()
<< " ] with version " << chunkVersion.toString()
<< " and collection version " << collectionVersion.toString();
}
} // namespace mongo
|
