f7851696fa
Will be used by topology loading code to determine which hosts are needed in topology, even if they're in the left state. We want to load only left nodes if they are referenced by any tablet, which may happen temporarily until the replacement replica is rebuilt.
77 lines
2.5 KiB
C++
77 lines
2.5 KiB
C++
/*
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* Copyright (C) 2023-present ScyllaDB
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*/
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/*
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* SPDX-License-Identifier: AGPL-3.0-or-later
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*/
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#pragma once
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#include "types/types.hh"
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#include "types/tuple.hh"
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#include "types/list.hh"
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#include "timestamp.hh"
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#include "locator/tablets.hh"
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#include "schema/schema_fwd.hh"
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#include "mutation/mutation.hh"
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#include "mutation/canonical_mutation.hh"
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#include "replica/database_fwd.hh"
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#include <seastar/core/future.hh>
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#include <vector>
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namespace cql3 {
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class query_processor;
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}
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namespace replica {
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data_type get_replica_set_type();
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data_type get_tablet_info_type();
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schema_ptr make_tablets_schema();
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std::vector<data_value> replicas_to_data_value(const locator::tablet_replica_set& replicas);
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/// Converts information in tablet_map to mutations of system.tablets.
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///
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/// The mutations will delete any older tablet information for the same table.
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/// The provided timestamp should be strictly monotonically increasing
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/// between calls for the overriding to work correctly.
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future<mutation> tablet_map_to_mutation(const locator::tablet_map&,
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table_id,
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const sstring& keyspace_name,
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const sstring& table_name,
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api::timestamp_type);
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mutation make_drop_tablet_map_mutation(table_id, api::timestamp_type);
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/// Stores a given tablet_metadata in system.tablets.
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///
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/// Overrides tablet maps for tables present in the given tablet metadata.
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/// Does not delete tablet maps for tables which are absent in the given tablet metadata.
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/// The provided timestamp should be strictly monotonically increasing
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/// between calls for tablet map overriding to work correctly.
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/// The timestamp must be greater than api::min_timestamp.
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future<> save_tablet_metadata(replica::database&, const locator::tablet_metadata&, api::timestamp_type);
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/// Reads tablet metadata from system.tablets.
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future<locator::tablet_metadata> read_tablet_metadata(cql3::query_processor&);
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/// Reads the set of hosts referenced by tablet replicas.
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future<std::unordered_set<locator::host_id>> read_required_hosts(cql3::query_processor&);
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/// Reads tablet metadata from system.tablets in the form of mutations.
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future<std::vector<canonical_mutation>> read_tablet_mutations(seastar::sharded<database>&);
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/// Reads tablet transition stage (if any)
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future<std::optional<locator::tablet_transition_stage>> read_tablet_transition_stage(cql3::query_processor& qp, table_id tid, dht::token last_token);
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} // namespace replica
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