/**
* Copyright (C) 2017 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 .
*
* 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.
*/
#define MONGO_LOG_DEFAULT_COMPONENT ::mongo::logger::LogComponent::kSharding
#include "mongo/platform/basic.h"
#include
#include "mongo/db/audit.h"
#include "mongo/db/auth/action_set.h"
#include "mongo/db/auth/action_type.h"
#include "mongo/db/auth/authorization_session.h"
#include "mongo/db/client.h"
#include "mongo/db/commands.h"
#include "mongo/db/operation_context.h"
#include "mongo/db/s/config/sharding_catalog_manager.h"
#include "mongo/s/catalog/type_database.h"
#include "mongo/s/catalog_cache.h"
#include "mongo/s/grid.h"
#include "mongo/s/request_types/create_database_gen.h"
#include "mongo/util/log.h"
#include "mongo/util/scopeguard.h"
namespace mongo {
using std::shared_ptr;
using std::set;
using std::string;
namespace {
/**
* Internal sharding command run on config servers to create a database.
* Call with { _configsvrCreateDatabase: }
*/
class ConfigSvrCreateDatabaseCommand : public BasicCommand {
public:
ConfigSvrCreateDatabaseCommand() : BasicCommand("_configsvrCreateDatabase") {}
AllowedOnSecondary secondaryAllowed(ServiceContext*) const override {
return AllowedOnSecondary::kNever;
}
virtual bool adminOnly() const {
return true;
}
virtual bool supportsWriteConcern(const BSONObj& cmd) const override {
return true;
}
std::string help() const override {
return "Internal command, which is exported by the sharding config server. Do not call "
"directly. Create a database.";
}
virtual Status checkAuthForCommand(Client* client,
const std::string& dbname,
const BSONObj& cmdObj) const override {
if (!AuthorizationSession::get(client)->isAuthorizedForActionsOnResource(
ResourcePattern::forClusterResource(), ActionType::internal)) {
return Status(ErrorCodes::Unauthorized, "Unauthorized");
}
return Status::OK();
}
bool run(OperationContext* opCtx,
const std::string& dbname_unused,
const BSONObj& cmdObj,
BSONObjBuilder& result) {
if (serverGlobalParams.clusterRole != ClusterRole::ConfigServer) {
return CommandHelpers::appendCommandStatus(
result,
Status(ErrorCodes::IllegalOperation,
"_configsvrCreateDatabase can only be run on config servers"));
}
auto createDatabaseRequest = ConfigsvrCreateDatabase::parse(
IDLParserErrorContext("ConfigsvrCreateDatabase"), cmdObj);
const string dbname = createDatabaseRequest.get_configsvrCreateDatabase().toString();
uassert(
ErrorCodes::InvalidNamespace,
str::stream() << "invalid db name specified: " << dbname,
NamespaceString::validDBName(dbname, NamespaceString::DollarInDbNameBehavior::Allow));
uassert(ErrorCodes::InvalidOptions,
str::stream() << "createDatabase must be called with majority writeConcern, got "
<< cmdObj,
opCtx->getWriteConcern().wMode == WriteConcernOptions::kMajority);
// Make sure to force update of any stale metadata
ON_BLOCK_EXIT([opCtx, dbname] { Grid::get(opCtx)->catalogCache()->purgeDatabase(dbname); });
// Remove the backwards compatible lock after 3.6 ships.
auto const catalogClient = Grid::get(opCtx)->catalogClient();
auto backwardsCompatibleDbDistLock = uassertStatusOK(
catalogClient->getDistLockManager()->lock(opCtx,
dbname + "-movePrimary",
"createDatabase",
DistLockManager::kDefaultLockTimeout));
auto dbDistLock = uassertStatusOK(catalogClient->getDistLockManager()->lock(
opCtx, dbname, "createDatabase", DistLockManager::kDefaultLockTimeout));
ShardingCatalogManager::get(opCtx)->createDatabase(opCtx, dbname);
return true;
}
} configsvrCreateDatabaseCmd;
} // namespace
} // namespace mongo