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/**
* 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.
*/
#define MONGO_LOGV2_DEFAULT_COMPONENT ::mongo::logv2::LogComponent::kSharding
#include "mongo/db/auth/authorization_session.h"
#include "mongo/db/catalog/collection_catalog.h"
#include "mongo/db/commands.h"
#include "mongo/db/curop.h"
#include "mongo/db/s/drop_database_coordinator.h"
#include "mongo/db/s/operation_sharding_state.h"
#include "mongo/db/s/sharding_ddl_coordinator_service.h"
#include "mongo/db/s/sharding_state.h"
#include "mongo/logv2/log.h"
#include "mongo/s/grid.h"
#include "mongo/s/request_types/sharded_ddl_commands_gen.h"
namespace mongo {
namespace {
class ShardsvrDropDatabaseCommand final : public TypedCommand<ShardsvrDropDatabaseCommand> {
public:
using Request = ShardsvrDropDatabase;
std::string help() const override {
return "Internal command, which is exported by the primary sharding server. Do not call "
"directly. Drops a database.";
}
bool skipApiVersionCheck() const override {
// Internal command (server to server).
return true;
}
AllowedOnSecondary secondaryAllowed(ServiceContext*) const override {
return Command::AllowedOnSecondary::kNever;
}
class Invocation final : public InvocationBase {
public:
using InvocationBase::InvocationBase;
void typedRun(OperationContext* opCtx) {
uassertStatusOK(ShardingState::get(opCtx)->canAcceptShardedCommands());
CommandHelpers::uassertCommandRunWithMajority(Request::kCommandName,
opCtx->getWriteConcern());
opCtx->setAlwaysInterruptAtStepDownOrUp();
// Since this operation is not directly writing locally we need to force its db
// profile level increase in order to be logged in "<db>.system.profile"
CurOp::get(opCtx)->raiseDbProfileLevel(
CollectionCatalog::get(opCtx)->getDatabaseProfileLevel(request().getDbName()));
auto coordinatorDoc = DropDatabaseCoordinatorDocument();
coordinatorDoc.setShardingDDLCoordinatorMetadata(
{{ns(), DDLCoordinatorTypeEnum::kDropDatabase}});
auto service = ShardingDDLCoordinatorService::getService(opCtx);
const auto requestVersion = OperationShardingState::get(opCtx).getDbVersion(ns().db());
auto dropDatabaseCoordinator = [&]() {
while (true) {
auto currentCoordinator = checked_pointer_cast<DropDatabaseCoordinator>(
service->getOrCreateInstance(opCtx, coordinatorDoc.toBSON()));
const auto currentDbVersion = currentCoordinator->getDatabaseVersion();
if (currentDbVersion == requestVersion) {
return currentCoordinator;
}
LOGV2_DEBUG(6073000,
2,
"DbVersion mismatch, waiting for existing coordinator to finish",
"requestedVersion"_attr = requestVersion,
"coordinatorVersion"_attr = currentDbVersion);
currentCoordinator->getCompletionFuture().wait(opCtx);
}
}();
dropDatabaseCoordinator->getCompletionFuture().get(opCtx);
}
private:
NamespaceString ns() const override {
return {request().getDbName(), ""};
}
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));
}
};
} shardsvrDropDatabaseCommand;
} // namespace
} // namespace mongo
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