Files
scylladb/replica/tablets.hh
Pavel Emelyanov f5264dc501 replica: Add helper to read tablet transition stage
Signed-off-by: Pavel Emelyanov <xemul@scylladb.com>
2024-03-07 08:47:25 +03:00

74 lines
2.4 KiB
C++

/*
* Copyright (C) 2023-present ScyllaDB
*/
/*
* SPDX-License-Identifier: AGPL-3.0-or-later
*/
#pragma once
#include "types/types.hh"
#include "types/tuple.hh"
#include "types/list.hh"
#include "timestamp.hh"
#include "locator/tablets.hh"
#include "schema/schema_fwd.hh"
#include "mutation/mutation.hh"
#include "mutation/canonical_mutation.hh"
#include "replica/database_fwd.hh"
#include <seastar/core/future.hh>
#include <vector>
namespace cql3 {
class query_processor;
}
namespace replica {
data_type get_replica_set_type();
data_type get_tablet_info_type();
schema_ptr make_tablets_schema();
std::vector<data_value> replicas_to_data_value(const locator::tablet_replica_set& replicas);
/// Converts information in tablet_map to mutations of system.tablets.
///
/// The mutations will delete any older tablet information for the same table.
/// The provided timestamp should be strictly monotonically increasing
/// between calls for the overriding to work correctly.
future<mutation> tablet_map_to_mutation(const locator::tablet_map&,
table_id,
const sstring& keyspace_name,
const sstring& table_name,
api::timestamp_type);
mutation make_drop_tablet_map_mutation(table_id, api::timestamp_type);
/// Stores a given tablet_metadata in system.tablets.
///
/// Overrides tablet maps for tables present in the given tablet metadata.
/// Does not delete tablet maps for tables which are absent in the given tablet metadata.
/// The provided timestamp should be strictly monotonically increasing
/// between calls for tablet map overriding to work correctly.
/// The timestamp must be greater than api::min_timestamp.
future<> save_tablet_metadata(replica::database&, const locator::tablet_metadata&, api::timestamp_type);
/// Reads tablet metadata from system.tablets.
future<locator::tablet_metadata> read_tablet_metadata(cql3::query_processor&);
/// Reads tablet metadata from system.tablets in the form of mutations.
future<std::vector<canonical_mutation>> read_tablet_mutations(seastar::sharded<database>&);
/// Reads tablet transition stage (if any)
future<std::optional<locator::tablet_transition_stage>> read_tablet_transition_stage(cql3::query_processor& qp, table_id tid, dht::token last_token);
} // namespace replica