diff options
Diffstat (limited to 'src/mongo/s/dbclient_shard_resolver.cpp')
| -rw-r--r-- | src/mongo/s/dbclient_shard_resolver.cpp | 102 |
1 files changed, 0 insertions, 102 deletions
diff --git a/src/mongo/s/dbclient_shard_resolver.cpp b/src/mongo/s/dbclient_shard_resolver.cpp deleted file mode 100644 index 3d2a32db338..00000000000 --- a/src/mongo/s/dbclient_shard_resolver.cpp +++ /dev/null @@ -1,102 +0,0 @@ -/** - * Copyright (C) 2013 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 <http://www.gnu.org/licenses/>. - * - * 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. - */ - -#include "mongo/platform/basic.h" - -#include "mongo/s/dbclient_shard_resolver.h" - -#include <set> - -#include "mongo/client/replica_set_monitor.h" -#include "mongo/s/client/shard.h" -#include "mongo/s/client/shard_registry.h" -#include "mongo/s/grid.h" - -namespace mongo { - -using std::string; - -Status DBClientShardResolver::chooseWriteHost(OperationContext* txn, - const string& shardName, - ConnectionString* shardHost) const { - // Internally uses our shard cache, does no reload - std::shared_ptr<Shard> shard = grid.shardRegistry()->getShard(txn, shardName); - if (!shard) { - return Status(ErrorCodes::ShardNotFound, - str::stream() << "unknown shard name " << shardName); - } - - return findMaster(shard->getConnString(), shardHost); -} - -Status DBClientShardResolver::findMaster(const ConnectionString& connString, - ConnectionString* resolvedHost) { - if (connString.type() == ConnectionString::MASTER) { - *resolvedHost = connString; - return Status::OK(); - } - - dassert(connString.type() == ConnectionString::SET); - - // - // If we need to, then get the particular node we're targeting in the replica set - // - - // Don't create the monitor unless we need to - fast path - ReplicaSetMonitorPtr replMonitor = ReplicaSetMonitor::get(connString.getSetName()); - - if (!replMonitor) { - // Slow path - std::set<HostAndPort> seedServers(connString.getServers().begin(), - connString.getServers().end()); - ReplicaSetMonitor::createIfNeeded(connString.getSetName(), seedServers); - - replMonitor = ReplicaSetMonitor::get(connString.getSetName()); - } - - if (!replMonitor) { - return Status(ErrorCodes::ReplicaSetNotFound, - str::stream() << "unknown replica set " << connString.getSetName()); - } - - try { - // This can throw when we don't find a master! - HostAndPort masterHostAndPort = replMonitor->getMasterOrUassert(); - *resolvedHost = - fassertStatusOK(28687, ConnectionString::parse(masterHostAndPort.toString())); - return Status::OK(); - } catch (const DBException&) { - return Status(ErrorCodes::HostNotFound, - string("could not contact primary for replica set ") + - replMonitor->getName()); - } - - MONGO_UNREACHABLE; -} - -} // namespace mongo |