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69 lines
1.9 KiB
C++
69 lines
1.9 KiB
C++
/*
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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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* SPDX-License-Identifier: (LicenseRef-ScyllaDB-Source-Available-1.1 and Apache-2.0)
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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 "inet_address_vectors.hh"
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#include "utils/log.hh"
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#include "replica/database_fwd.hh"
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namespace gms {
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class gossiper;
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};
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namespace locator {
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class effective_replication_map;
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}
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namespace db {
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extern logging::logger cl_logger;
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size_t quorum_for(const locator::effective_replication_map& erm);
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size_t local_quorum_for(const locator::effective_replication_map& erm, const sstring& dc);
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size_t block_for_local_serial(const locator::effective_replication_map& erm);
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size_t block_for_each_quorum(const locator::effective_replication_map& erm);
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size_t block_for(const locator::effective_replication_map& erm, consistency_level cl);
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bool is_datacenter_local(consistency_level l);
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host_id_vector_replica_set
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filter_for_query(consistency_level cl,
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const locator::effective_replication_map& erm,
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host_id_vector_replica_set live_endpoints,
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const host_id_vector_replica_set& preferred_endpoints,
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read_repair_decision read_repair,
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const gms::gossiper& g,
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std::optional<locator::host_id>* extra,
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replica::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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const locator::effective_replication_map& erm,
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const host_id_vector_replica_set& live_endpoints);
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void assure_sufficient_live_nodes(
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consistency_level cl,
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const locator::effective_replication_map& erm,
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const host_id_vector_replica_set& live_endpoints,
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const host_id_vector_topology_change& pending_endpoints = host_id_vector_topology_change());
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}
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