99a80050e3
There's nothing legacy about it so rename legacy_schema_tables to schema_tables. The naming comes from a Cassandra 3.x development branch which is not relevant for us in the near future. Signed-off-by: Pekka Enberg <penberg@cloudius-systems.com>
112 lines
3.8 KiB
C++
112 lines
3.8 KiB
C++
/*
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* Licensed to the Apache Software Foundation (ASF) under one
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* or more contributor license agreements. See the NOTICE file
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* distributed with this work for additional information
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* regarding copyright ownership. The ASF licenses this file
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* to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance
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* with the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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/*
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* Copyright 2015 Cloudius Systems
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*
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* Modified by Cloudius Systems
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*/
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#pragma once
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#include "service/migration_listener.hh"
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#include "gms/endpoint_state.hh"
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#include "db/schema_tables.hh"
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#include "core/distributed.hh"
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#include "gms/inet_address.hh"
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#include "utils/UUID.hh"
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#include <vector>
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namespace service {
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class migration_manager {
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std::vector<migration_listener*> _listeners;
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static const std::chrono::milliseconds migration_delay;
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public:
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migration_manager();
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/// Register a migration listener on current shard.
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void register_listener(migration_listener* listener);
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/// Unregister a migration listener on current shard.
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void unregister_listener(migration_listener* listener);
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future<> schedule_schema_pull(const gms::inet_address& endpoint, const gms::endpoint_state& state);
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future<> maybe_schedule_schema_pull(const utils::UUID& their_version, const gms::inet_address& endpoint);
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future<> submit_migration_task(const gms::inet_address& endpoint);
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static future<> notify_create_keyspace(const lw_shared_ptr<keyspace_metadata>& ksm);
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static future<> notify_create_column_family(schema_ptr cfm);
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static future<> notify_update_keyspace(const lw_shared_ptr<keyspace_metadata>& ksm);
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static future<> notify_update_column_family(schema_ptr cfm);
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static future<> notify_drop_keyspace(const lw_shared_ptr<keyspace_metadata>& ksm);
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static future<> notify_drop_column_family(schema_ptr cfm);
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bool should_pull_schema_from(const gms::inet_address& endpoint);
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future<> announce_new_keyspace(lw_shared_ptr<keyspace_metadata> ksm, bool announce_locally = false);
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future<> announce_new_keyspace(lw_shared_ptr<keyspace_metadata> ksm, api::timestamp_type timestamp, bool announce_locally);
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future<> announce_column_family_update(schema_ptr cfm, bool from_thrift, bool announce_locally = false);
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future<> announce_new_column_family(schema_ptr cfm, bool announce_locally = false);
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future<> announce_keyspace_drop(const sstring& ks_name, bool announce_locally = false);
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future<> announce_column_family_drop(const sstring& ks_name, const sstring& cf_name, bool announce_locally = false);
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/**
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* actively announce a new version to active hosts via rpc
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* @param schema The schema mutation to be applied
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*/
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static future<> announce(mutation schema, bool announce_locally);
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static future<> announce(std::vector<mutation> mutations, bool announce_locally);
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static future<> push_schema_mutation(const gms::inet_address& endpoint, const std::vector<mutation>& schema);
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// Returns a future on the local application of the schema
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static future<> announce(std::vector<mutation> schema);
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static future<> passive_announce(utils::UUID version);
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future<> stop();
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};
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extern distributed<migration_manager> _the_migration_manager;
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inline distributed<migration_manager>& get_migration_manager() {
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return _the_migration_manager;
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}
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inline migration_manager& get_local_migration_manager() {
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return _the_migration_manager.local();
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}
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}
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