6a7e850161
The patch removes test/boost/cdc_generation_test.cc since it unit tests cdc::limit_number_of_streams_if_needed function which is remove here.
115 lines
4.0 KiB
C++
115 lines
4.0 KiB
C++
/*
|
|
* Copyright (C) 2018-present ScyllaDB
|
|
*/
|
|
|
|
/*
|
|
* SPDX-License-Identifier: LicenseRef-ScyllaDB-Source-Available-1.0
|
|
*/
|
|
|
|
#pragma once
|
|
|
|
#include "schema/schema_fwd.hh"
|
|
#include "service/qos/qos_common.hh"
|
|
#include "utils/UUID.hh"
|
|
#include "cdc/generation_id.hh"
|
|
#include "locator/host_id.hh"
|
|
|
|
#include <seastar/core/future.hh>
|
|
#include <seastar/core/sstring.hh>
|
|
|
|
#include <unordered_map>
|
|
|
|
namespace cql3 {
|
|
class query_processor;
|
|
}
|
|
|
|
namespace cdc {
|
|
class stream_id;
|
|
class topology_description;
|
|
class streams_version;
|
|
} // namespace cdc
|
|
|
|
namespace service {
|
|
class storage_proxy;
|
|
class migration_manager;
|
|
}
|
|
|
|
namespace db {
|
|
|
|
class system_distributed_keyspace {
|
|
public:
|
|
static constexpr auto NAME = "system_distributed";
|
|
static constexpr auto NAME_EVERYWHERE = "system_distributed_everywhere";
|
|
|
|
static constexpr auto VIEW_BUILD_STATUS = "view_build_status";
|
|
static constexpr auto SERVICE_LEVELS = "service_levels";
|
|
|
|
/* Nodes use this table to communicate new CDC stream generations to other nodes. */
|
|
static constexpr auto CDC_TOPOLOGY_DESCRIPTION = "cdc_generation_descriptions";
|
|
|
|
/* Nodes use this table to communicate new CDC stream generations to other nodes.
|
|
* Resides in system_distributed_everywhere. */
|
|
static constexpr auto CDC_GENERATIONS_V2 = "cdc_generation_descriptions_v2";
|
|
|
|
/* This table is used by CDC clients to learn about available CDC streams. */
|
|
static constexpr auto CDC_DESC_V2 = "cdc_streams_descriptions_v2";
|
|
|
|
/* Used by CDC clients to learn CDC generation timestamps. */
|
|
static constexpr auto CDC_TIMESTAMPS = "cdc_generation_timestamps";
|
|
|
|
/* Previous version of the "cdc_streams_descriptions_v2" table.
|
|
* We use it in the upgrade procedure to ensure that CDC generations appearing
|
|
* in the old table also appear in the new table, if necessary. */
|
|
static constexpr auto CDC_DESC_V1 = "cdc_streams_descriptions";
|
|
|
|
/* Information required to modify/query some system_distributed tables, passed from the caller. */
|
|
struct context {
|
|
/* How many different token owners (endpoints) are there in the token ring? */
|
|
size_t num_token_owners;
|
|
};
|
|
private:
|
|
cql3::query_processor& _qp;
|
|
service::migration_manager& _mm;
|
|
service::storage_proxy& _sp;
|
|
|
|
bool _started = false;
|
|
bool _forced_cdc_timestamps_schema_sync = false;
|
|
|
|
public:
|
|
static std::vector<schema_ptr> all_distributed_tables();
|
|
static std::vector<schema_ptr> all_everywhere_tables();
|
|
|
|
system_distributed_keyspace(cql3::query_processor&, service::migration_manager&, service::storage_proxy&);
|
|
|
|
future<> start();
|
|
future<> start_workload_prioritization();
|
|
future<> stop();
|
|
|
|
bool started() const { return _started; }
|
|
|
|
future<std::unordered_map<locator::host_id, sstring>> view_status(sstring ks_name, sstring view_name) const;
|
|
future<> start_view_build(sstring ks_name, sstring view_name) const;
|
|
future<> finish_view_build(sstring ks_name, sstring view_name) const;
|
|
future<> remove_view(sstring ks_name, sstring view_name) const;
|
|
|
|
future<> insert_cdc_generation(utils::UUID, const cdc::topology_description&, context);
|
|
future<std::optional<cdc::topology_description>> read_cdc_generation(utils::UUID);
|
|
|
|
future<> create_cdc_desc(db_clock::time_point, const cdc::topology_description&, context);
|
|
future<bool> cdc_desc_exists(db_clock::time_point, context);
|
|
|
|
future<std::map<db_clock::time_point, cdc::streams_version>> cdc_get_versioned_streams(db_clock::time_point not_older_than, context);
|
|
|
|
future<db_clock::time_point> cdc_current_generation_timestamp(context);
|
|
|
|
future<qos::service_levels_info> get_service_levels(qos::query_context ctx) const;
|
|
future<qos::service_levels_info> get_service_level(sstring service_level_name) const;
|
|
future<> set_service_level(sstring service_level_name, qos::service_level_options slo) const;
|
|
future<> drop_service_level(sstring service_level_name) const;
|
|
|
|
private:
|
|
future<> create_tables(std::vector<schema_ptr> tables);
|
|
};
|
|
|
|
}
|