mirror of https://gitee.com/bigwinds/arangodb
90 lines
2.7 KiB
C++
90 lines
2.7 KiB
C++
////////////////////////////////////////////////////////////////////////////////
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/// DISCLAIMER
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///
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/// Copyright 2016 ArangoDB GmbH, Cologne, Germany
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///
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/// Licensed under the Apache License, Version 2.0 (the "License");
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/// you may not use this file except in compliance with the License.
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/// You may obtain a copy of the License at
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///
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/// http://www.apache.org/licenses/LICENSE-2.0
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///
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/// Unless required by applicable law or agreed to in writing, software
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/// distributed under the License is distributed on an "AS IS" BASIS,
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/// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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/// See the License for the specific language governing permissions and
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/// limitations under the License.
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///
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/// Copyright holder is ArangoDB GmbH, Cologne, Germany
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///
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/// @author Simon Grätzer
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////////////////////////////////////////////////////////////////////////////////
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#ifndef ARANGODB_PREGEL_RECOVERY_H
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#define ARANGODB_PREGEL_RECOVERY_H 1
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#include <map>
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#include <set>
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#include "Basics/Mutex.h"
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#include "Cluster/ClusterInfo.h"
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namespace arangodb {
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namespace pregel {
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template <typename V, typename E>
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class GraphStore;
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class Conductor;
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class RecoveryManager {
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ClusterInfo& _ci;
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Mutex _lock;
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AgencyComm _agency;
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// AgencyCallbackRegistry* _agencyCallbackRegistry; // weak
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std::map<ShardID, std::set<Conductor*>> _listeners;
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std::map<ShardID, ServerID> _primaryServers;
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std::map<ShardID, std::shared_ptr<AgencyCallback>> _agencyCallbacks;
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// void _monitorShard(DatabaseID const& database,
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// CollectionID const& cid,
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// ShardID const& shard);
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void _renewPrimaryServer(ShardID const& shard);
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public:
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explicit RecoveryManager(ClusterInfo&);
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~RecoveryManager();
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void monitorCollections(DatabaseID const& database,
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std::vector<CollectionID> const& collections, Conductor* listener);
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void stopMonitoring(Conductor*);
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int filterGoodServers(std::vector<ServerID> const& servers,
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std::vector<ServerID>& goodServers);
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void updatedFailedServers(std::vector<ServerID> const& failedServers);
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// bool allServersAvailable(std::vector<ServerID> const& dbServers);
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};
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/*
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template
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class CheckpointingManager {
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friend class RestPregelHandler;
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std::map<ShardID, ServerID> _secondaries;
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ServerID const* secondaryForShard(ShardID const& shard) { return nullptr; }
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// receivedBackupData(VPackSlice slice);
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public:
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template <typename V, typename E>
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void replicateGraphData(uint64_t exn, uint64_t gss,
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GraphStore<V, E> const* graphStore);
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void restoreGraphData(uint64_t exn, uint64_t gss,
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GraphStore<V, E> const* graphStore);
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void reloadPlanData() { _secondaries.clear(); }
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};*/
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} // namespace pregel
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} // namespace arangodb
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#endif
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