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4a0b561376
The moving operation changes a node's token to a new token. It is supported only when a node has one token. The legacy moving operation is useful in the early days before the vnode is introduced where a node has only one token. I don't think it is useful anymore. In the future, we might support adjusting the number of vnodes to reblance the token range each node owns. Removing it simplifies the cluster operation logic and code. Fixes #3475 Message-Id: <144d3bea4140eda550770b866ec30e961933401d.1533111227.git.asias@scylladb.com>
111 lines
3.3 KiB
C++
111 lines
3.3 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 (C) 2015 ScyllaDB
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*
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* Modified by ScyllaDB
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*/
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/*
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* This file is part of Scylla.
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*
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* Scylla is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* Scylla is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with Scylla. If not, see <http://www.gnu.org/licenses/>.
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*/
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#pragma once
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#include "gms/inet_address.hh"
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#include <seastar/core/sstring.hh>
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#include <seastar/net/api.hh>
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#include <experimental/optional>
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#include <stdexcept>
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namespace cql_transport {
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class event {
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public:
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enum class event_type { TOPOLOGY_CHANGE, STATUS_CHANGE, SCHEMA_CHANGE };
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const event_type type;
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private:
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event(const event_type& type_);
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public:
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class topology_change;
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class status_change;
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class schema_change;
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};
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class event::topology_change : public event {
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public:
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enum class change_type { NEW_NODE, REMOVED_NODE, MOVED_NODE };
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const change_type change;
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const ipv4_addr node;
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topology_change(change_type change, const ipv4_addr& node);
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static topology_change new_node(const gms::inet_address& host, uint16_t port);
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static topology_change removed_node(const gms::inet_address& host, uint16_t port);
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};
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class event::status_change : public event {
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public:
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enum class status_type { UP, DOWN };
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const status_type status;
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const ipv4_addr node;
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status_change(status_type status, const ipv4_addr& node);
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static status_change node_up(const gms::inet_address& host, uint16_t port);
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static status_change node_down(const gms::inet_address& host, uint16_t port);
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};
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class event::schema_change : public event {
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public:
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enum class change_type { CREATED, UPDATED, DROPPED };
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enum class target_type { KEYSPACE, TABLE, TYPE };
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const change_type change;
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const target_type target;
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const sstring keyspace;
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const std::experimental::optional<sstring> table_or_type_or_function;
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schema_change(const change_type change_, const target_type target_, const sstring& keyspace_, const std::experimental::optional<sstring>& table_or_type_or_function_);
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schema_change(const change_type change_, const sstring keyspace_);
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};
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}
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