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author | Pierlauro Sciarelli <pierlauro.sciarelli@mongodb.com> | 2022-03-09 19:29:28 +0000 |
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committer | Evergreen Agent <no-reply@evergreen.mongodb.com> | 2022-03-09 21:56:10 +0000 |
commit | cf8468372c4682b4d33d3c73ba4da1cbb9eafc70 (patch) | |
tree | 1ffd25cb809d7b53d04ae226efc1e015825b82f1 /src/mongo/db/s/config/configsvr_move_range_command.cpp | |
parent | fc049222717e652b68eeba89dbd11106baf461f9 (diff) | |
download | mongo-cf8468372c4682b4d33d3c73ba4da1cbb9eafc70.tar.gz |
SERVER-64195 Provide user-facing `moveRange` command
Diffstat (limited to 'src/mongo/db/s/config/configsvr_move_range_command.cpp')
-rw-r--r-- | src/mongo/db/s/config/configsvr_move_range_command.cpp | 148 |
1 files changed, 148 insertions, 0 deletions
diff --git a/src/mongo/db/s/config/configsvr_move_range_command.cpp b/src/mongo/db/s/config/configsvr_move_range_command.cpp new file mode 100644 index 00000000000..c95b02b6e25 --- /dev/null +++ b/src/mongo/db/s/config/configsvr_move_range_command.cpp @@ -0,0 +1,148 @@ +/** + * Copyright (C) 2022-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. + */ + +#define MONGO_LOGV2_DEFAULT_COMPONENT ::mongo::logv2::LogComponent::kCommand + +#include "mongo/db/auth/action_type.h" +#include "mongo/db/auth/authorization_session.h" +#include "mongo/db/commands.h" +#include "mongo/db/s/balancer/balancer.h" +#include "mongo/s/grid.h" +#include "mongo/s/request_types/move_range_request_gen.h" +#include "mongo/s/sharding_feature_flags_gen.h" + +namespace mongo { +namespace { + +class ConfigSvrMoveRangeCommand final : public TypedCommand<ConfigSvrMoveRangeCommand> { +public: + using Request = ConfigsvrMoveRange; + + std::string help() const override { + return "Internal command only invokable on the config server. Do not call directly. " + "Requests the balancer to move a range."; + } + + AllowedOnSecondary secondaryAllowed(ServiceContext*) const override { + return AllowedOnSecondary::kNever; + } + + bool adminOnly() const override { + return true; + } + + class Invocation final : public InvocationBase { + public: + using InvocationBase::InvocationBase; + + void typedRun(OperationContext* opCtx) { + uassert(ErrorCodes::CommandFailed, + "Can't run moveRange because the feature is disabled in the current FCV mode", + feature_flags::gNoMoreAutoSplitter.isEnabled( + serverGlobalParams.featureCompatibility)); + uassert(ErrorCodes::IllegalOperation, + str::stream() << Request::kCommandName + << " can only be run on the config server", + serverGlobalParams.clusterRole == ClusterRole::ConfigServer); + + opCtx->setAlwaysInterruptAtStepDownOrUp(); + + const auto nss = ns(); + const auto& req = request(); + + // Set read concern level to local for reads into the config database + repl::ReadConcernArgs::get(opCtx) = + repl::ReadConcernArgs(repl::ReadConcernLevel::kLocalReadConcern); + + // Make sure that the `to` shard exists + uassertStatusOKWithContext( + Grid::get(opCtx)->shardRegistry()->getShard(opCtx, req.getToShard()), + "Could not find destination shard"); + + const auto cm = + Grid::get(opCtx)->catalogCache()->getShardedCollectionRoutingInfo(opCtx, nss); + const auto chunk = cm.findIntersectingChunkWithSimpleCollation(req.getMin()); + + bool validBounds = req.getMin().woCompare(chunk.getMin()) == 0 && + req.getMax().woCompare(chunk.getMax()) == 0; + uassert(ErrorCodes::CommandFailed, + "No chunk found with the provided shard key bounds", + validBounds); + + ChunkType chunkType; + chunkType.setCollectionUUID(cm.getUUID()); + chunkType.setMin(chunk.getMin()); + chunkType.setMax(chunk.getMax()); + chunkType.setShard(chunk.getShardId()); + chunkType.setVersion(cm.getVersion()); + + { + // TODO SERVER-64324 replace this scope calling moveRange instead of moveChunk + MigrationSecondaryThrottleOptions secondaryThrottle = [&]() { + if (!req.getSecondaryThrottle()) { + return MigrationSecondaryThrottleOptions::create( + MigrationSecondaryThrottleOptions::kOff); + } + + return MigrationSecondaryThrottleOptions::createWithWriteConcern( + opCtx->getWriteConcern()); + }(); + + const bool forceJumbo = req.getForceJumbo() != ForceJumbo::kDoNotForce; + uassertStatusOK(Balancer::get(opCtx)->moveSingleChunk(opCtx, + nss, + chunkType, + req.getToShard(), + secondaryThrottle, + req.getWaitForDelete(), + forceJumbo)); + } + } + + private: + NamespaceString ns() const override { + return request().getCommandParameter(); + } + + bool supportsWriteConcern() const override { + return true; + } + + void doCheckAuthorization(OperationContext* opCtx) const override { + uassert(ErrorCodes::Unauthorized, + "Unauthorized", + AuthorizationSession::get(opCtx->getClient()) + ->isAuthorizedForActionsOnResource(ResourcePattern::forClusterResource(), + ActionType::internal)); + } + }; +} _cfgsvrMoveRange; + +} // namespace +} // namespace mongo |