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11c99fc41b
The table::get_hit_rate needs gossiper to get hitrates state from. There's no way to carry gossiper reference on the table itself, so it's up to the callers of that method to provide it. Fortunately, there's only one caller -- the proxy -- but the call chain to carry the reference it not very short ... oh, well. Signed-off-by: Pavel Emelyanov <xemul@scylladb.com>
93 lines
2.7 KiB
C++
93 lines
2.7 KiB
C++
/*
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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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* SPDX-License-Identifier: (AGPL-3.0-or-later 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 "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 gms {
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class gossiper;
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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 replica::keyspace& ks);
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size_t local_quorum_for(const replica::keyspace& ks, const sstring& dc);
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size_t block_for_local_serial(replica::keyspace& ks);
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size_t block_for_each_quorum(replica::keyspace& ks);
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size_t block_for(replica::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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replica::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::gossiper& g,
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gms::inet_address* extra,
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replica::column_family* cf);
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inet_address_vector_replica_set filter_for_query(consistency_level cl,
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replica::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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gms::gossiper& g,
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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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replica::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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replica::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, replica::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, replica::keyspace&, const inet_address_vector_replica_set&, const utils::small_vector<gms::inet_address, 1ul>&);
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}
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