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
|
/**
* Copyright (C) 2021-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/db/auth/authorization_session.h"
#include "mongo/db/commands.h"
#include "mongo/db/s/auto_split_vector.h"
#include "mongo/db/s/sharding_state.h"
#include "mongo/logv2/log.h"
#include "mongo/s/request_types/auto_split_vector_gen.h"
#define MONGO_LOGV2_DEFAULT_COMPONENT ::mongo::logv2::LogComponent::kSharding
namespace mongo {
namespace {
static constexpr int64_t kSmallestChunkSizeBytesSupported = 1024 * 1024;
static constexpr int64_t kBiggestChunkSizeBytesSupported = 1024 * 1024 * 1024;
class AutoSplitVectorCommand final : public TypedCommand<AutoSplitVectorCommand> {
public:
bool skipApiVersionCheck() const override {
/* Internal command (server to server) */
return true;
}
AllowedOnSecondary secondaryAllowed(ServiceContext*) const override {
return Command::AllowedOnSecondary::kNever;
}
std::string help() const override {
return "Internal command returning the split points for a chunk, given the maximum chunk "
"size.";
}
using Request = AutoSplitVectorRequest;
using Response = AutoSplitVectorResponse;
class Invocation final : public InvocationBase {
public:
using InvocationBase::InvocationBase;
Response typedRun(OperationContext* opCtx) {
uassert(ErrorCodes::IllegalOperation,
"The autoSplitVector command can only be invoked on shards (no CSRS).",
serverGlobalParams.clusterRole == ClusterRole::ShardServer);
uassertStatusOK(ShardingState::get(opCtx)->canAcceptShardedCommands());
opCtx->setAlwaysInterruptAtStepDownOrUp_UNSAFE();
const auto& req = request();
uassert(ErrorCodes::ErrorCodes::InvalidOptions,
str::stream() << "maxChunksSizeBytes must lie within the range ["
<< kSmallestChunkSizeBytesSupported / (1024 * 1024) << "MB, "
<< kBiggestChunkSizeBytesSupported / (1024 * 1024) << "MB]",
req.getMaxChunkSizeBytes() >= kSmallestChunkSizeBytesSupported &&
req.getMaxChunkSizeBytes() <= kBiggestChunkSizeBytesSupported);
auto [splitPoints, continuation] = autoSplitVector(opCtx,
ns(),
req.getKeyPattern(),
req.getMin(),
req.getMax(),
req.getMaxChunkSizeBytes(),
req.getLimit());
return Response(std::move(splitPoints), continuation);
}
private:
NamespaceString ns() const override {
return request().getNamespace();
}
bool supportsWriteConcern() const override {
return false;
}
void doCheckAuthorization(OperationContext* opCtx) const override {
uassert(ErrorCodes::Unauthorized,
"Unauthorized",
AuthorizationSession::get(opCtx->getClient())
->isAuthorizedForActionsOnResource(ResourcePattern::forClusterResource(),
ActionType::splitVector));
}
};
} autoSplitVectorCommand;
} // namespace
} // namespace mongo
|