ae3a360725
The database, keyspace, and table classes represent the replica-only part of the objects after which they are named. Reading from a table doesn't give you the full data, just the replica's view, and it is not consistent since reconciliation is applied on the coordinator. As a first step in acknowledging this, move the related files to a replica/ subdirectory.
115 lines
3.9 KiB
C++
115 lines
3.9 KiB
C++
/*
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* Licensed to the Apache Software Foundation (ASF) under one
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* or more contributor license agreements. See the NOTICE file
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* distributed with this work for additional information
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* regarding copyright ownership. The ASF licenses this file
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* to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance
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* with the License. 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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/*
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* Copyright (C) 2015-present ScyllaDB
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*
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* Modified by ScyllaDB
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*/
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/*
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* This file is part of Scylla.
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*
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* Scylla is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* Scylla is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with Scylla. If not, see <http://www.gnu.org/licenses/>.
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*/
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#pragma once
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#include "db/consistency_level_type.hh"
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#include "db/read_repair_decision.hh"
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#include "exceptions/exceptions.hh"
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#include "gms/inet_address.hh"
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#include "inet_address_vectors.hh"
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#include "log.hh"
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#include "replica/database_fwd.hh"
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#include <iosfwd>
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#include <vector>
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#include <unordered_set>
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namespace db {
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extern logging::logger cl_logger;
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size_t quorum_for(const keyspace& ks);
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size_t local_quorum_for(const keyspace& ks, const sstring& dc);
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size_t block_for_local_serial(keyspace& ks);
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size_t block_for_each_quorum(keyspace& ks);
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size_t block_for(keyspace& ks, consistency_level cl);
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bool is_datacenter_local(consistency_level l);
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bool is_local(gms::inet_address endpoint);
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template<typename Range>
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inline size_t count_local_endpoints(const Range& live_endpoints) {
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return std::count_if(live_endpoints.begin(), live_endpoints.end(), is_local);
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}
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inet_address_vector_replica_set
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filter_for_query(consistency_level cl,
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keyspace& ks,
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inet_address_vector_replica_set live_endpoints,
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const inet_address_vector_replica_set& preferred_endpoints,
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read_repair_decision read_repair,
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gms::inet_address* extra,
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column_family* cf);
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inet_address_vector_replica_set filter_for_query(consistency_level cl,
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keyspace& ks,
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inet_address_vector_replica_set& live_endpoints,
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const inet_address_vector_replica_set& preferred_endpoints,
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column_family* cf);
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struct dc_node_count {
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size_t live = 0;
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size_t pending = 0;
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};
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bool
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is_sufficient_live_nodes(consistency_level cl,
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keyspace& ks,
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const inet_address_vector_replica_set& live_endpoints);
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template<typename Range, typename PendingRange = std::array<gms::inet_address, 0>>
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void assure_sufficient_live_nodes(
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consistency_level cl,
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keyspace& ks,
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const Range& live_endpoints,
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const PendingRange& pending_endpoints = std::array<gms::inet_address, 0>());
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extern template void assure_sufficient_live_nodes(consistency_level, keyspace&, const inet_address_vector_replica_set&, const std::array<gms::inet_address, 0>&);
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extern template void assure_sufficient_live_nodes(db::consistency_level, keyspace&, const inet_address_vector_replica_set&, const utils::small_vector<gms::inet_address, 1ul>&);
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}
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