mirror of
https://github.com/scylladb/scylladb.git
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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>
289 lines
9.9 KiB
C++
289 lines
9.9 KiB
C++
/*
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* Copyright (C) 2015 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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#include "transport/server.hh"
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#include "core/gate.hh"
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#include "service/migration_manager.hh"
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#include "service/storage_service.hh"
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#include "transport/response.hh"
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namespace cql_transport {
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static logging::logger elogger("event_notifier");
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cql_server::event_notifier::event_notifier()
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{
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service::get_local_migration_manager().register_listener(this);
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service::get_local_storage_service().register_subscriber(this);
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}
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cql_server::event_notifier::~event_notifier()
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{
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service::get_local_storage_service().unregister_subscriber(this);
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service::get_local_migration_manager().unregister_listener(this);
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}
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void cql_server::event_notifier::register_event(event::event_type et, cql_server::connection* conn)
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{
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switch (et) {
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case event::event_type::TOPOLOGY_CHANGE:
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_topology_change_listeners.emplace(conn);
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break;
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case event::event_type::STATUS_CHANGE:
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_status_change_listeners.emplace(conn);
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break;
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case event::event_type::SCHEMA_CHANGE:
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_schema_change_listeners.emplace(conn);
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break;
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}
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}
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void cql_server::event_notifier::unregister_connection(cql_server::connection* conn)
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{
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_topology_change_listeners.erase(conn);
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_status_change_listeners.erase(conn);
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_schema_change_listeners.erase(conn);
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}
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void cql_server::event_notifier::on_create_keyspace(const sstring& ks_name)
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{
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for (auto&& conn : _schema_change_listeners) {
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using namespace cql_transport;
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if (!conn->_pending_requests_gate.is_closed()) {
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conn->write_response(conn->make_schema_change_event(event::schema_change{
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event::schema_change::change_type::CREATED,
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ks_name
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}));
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};
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}
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}
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void cql_server::event_notifier::on_create_column_family(const sstring& ks_name, const sstring& cf_name)
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{
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for (auto&& conn : _schema_change_listeners) {
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using namespace cql_transport;
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if (!conn->_pending_requests_gate.is_closed()) {
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conn->write_response(conn->make_schema_change_event(event::schema_change{
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event::schema_change::change_type::CREATED,
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event::schema_change::target_type::TABLE,
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ks_name,
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cf_name
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}));
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};
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}
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}
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void cql_server::event_notifier::on_create_user_type(const sstring& ks_name, const sstring& type_name)
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{
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for (auto&& conn : _schema_change_listeners) {
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using namespace cql_transport;
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if (!conn->_pending_requests_gate.is_closed()) {
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conn->write_response(conn->make_schema_change_event(event::schema_change{
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event::schema_change::change_type::CREATED,
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event::schema_change::target_type::TYPE,
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ks_name,
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type_name
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}));
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};
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}
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}
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void cql_server::event_notifier::on_create_view(const sstring& ks_name, const sstring& view_name)
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{
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on_create_column_family(ks_name, view_name);
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}
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void cql_server::event_notifier::on_create_function(const sstring& ks_name, const sstring& function_name)
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{
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elogger.warn("{} event ignored", __func__);
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}
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void cql_server::event_notifier::on_create_aggregate(const sstring& ks_name, const sstring& aggregate_name)
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{
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elogger.warn("{} event ignored", __func__);
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}
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void cql_server::event_notifier::on_update_keyspace(const sstring& ks_name)
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{
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for (auto&& conn : _schema_change_listeners) {
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using namespace cql_transport;
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if (!conn->_pending_requests_gate.is_closed()) {
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conn->write_response(conn->make_schema_change_event(event::schema_change{
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event::schema_change::change_type::UPDATED,
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ks_name
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}));
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};
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}
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}
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void cql_server::event_notifier::on_update_column_family(const sstring& ks_name, const sstring& cf_name, bool columns_changed)
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{
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for (auto&& conn : _schema_change_listeners) {
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using namespace cql_transport;
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if (!conn->_pending_requests_gate.is_closed()) {
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conn->write_response(conn->make_schema_change_event(event::schema_change{
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event::schema_change::change_type::UPDATED,
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event::schema_change::target_type::TABLE,
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ks_name,
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cf_name
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}));
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};
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}
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}
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void cql_server::event_notifier::on_update_user_type(const sstring& ks_name, const sstring& type_name)
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{
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for (auto&& conn : _schema_change_listeners) {
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using namespace cql_transport;
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if (!conn->_pending_requests_gate.is_closed()) {
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conn->write_response(conn->make_schema_change_event(event::schema_change{
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event::schema_change::change_type::UPDATED,
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event::schema_change::target_type::TYPE,
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ks_name,
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type_name
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}));
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};
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}
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}
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void cql_server::event_notifier::on_update_view(const sstring& ks_name, const sstring& view_name, bool columns_changed)
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{
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on_update_column_family(ks_name, view_name, columns_changed);
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}
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void cql_server::event_notifier::on_update_function(const sstring& ks_name, const sstring& function_name)
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{
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elogger.warn("%s event ignored", __func__);
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}
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void cql_server::event_notifier::on_update_aggregate(const sstring& ks_name, const sstring& aggregate_name)
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{
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elogger.warn("%s event ignored", __func__);
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}
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void cql_server::event_notifier::on_drop_keyspace(const sstring& ks_name)
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{
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for (auto&& conn : _schema_change_listeners) {
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using namespace cql_transport;
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if (!conn->_pending_requests_gate.is_closed()) {
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conn->write_response(conn->make_schema_change_event(event::schema_change{
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event::schema_change::change_type::DROPPED,
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ks_name
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}));
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};
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}
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}
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void cql_server::event_notifier::on_drop_column_family(const sstring& ks_name, const sstring& cf_name)
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{
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for (auto&& conn : _schema_change_listeners) {
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using namespace cql_transport;
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if (!conn->_pending_requests_gate.is_closed()) {
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conn->write_response(conn->make_schema_change_event(event::schema_change{
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event::schema_change::change_type::DROPPED,
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event::schema_change::target_type::TABLE,
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ks_name,
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cf_name
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}));
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};
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}
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}
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void cql_server::event_notifier::on_drop_user_type(const sstring& ks_name, const sstring& type_name)
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{
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for (auto&& conn : _schema_change_listeners) {
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using namespace cql_transport;
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if (!conn->_pending_requests_gate.is_closed()) {
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conn->write_response(conn->make_schema_change_event(event::schema_change{
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event::schema_change::change_type::DROPPED,
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event::schema_change::target_type::TYPE,
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ks_name,
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type_name
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}));
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};
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}
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}
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void cql_server::event_notifier::on_drop_view(const sstring& ks_name, const sstring& view_name)
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{
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on_drop_column_family(ks_name, view_name);
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}
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void cql_server::event_notifier::on_drop_function(const sstring& ks_name, const sstring& function_name)
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{
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elogger.warn("%s event ignored", __func__);
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}
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void cql_server::event_notifier::on_drop_aggregate(const sstring& ks_name, const sstring& aggregate_name)
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{
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elogger.warn("%s event ignored", __func__);
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}
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void cql_server::event_notifier::on_join_cluster(const gms::inet_address& endpoint)
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{
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for (auto&& conn : _topology_change_listeners) {
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using namespace cql_transport;
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if (!conn->_pending_requests_gate.is_closed()) {
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conn->write_response(conn->make_topology_change_event(event::topology_change::new_node(endpoint, conn->_server_addr.port)));
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};
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}
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}
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void cql_server::event_notifier::on_leave_cluster(const gms::inet_address& endpoint)
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{
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for (auto&& conn : _topology_change_listeners) {
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using namespace cql_transport;
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if (!conn->_pending_requests_gate.is_closed()) {
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conn->write_response(conn->make_topology_change_event(event::topology_change::removed_node(endpoint, conn->_server_addr.port)));
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};
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}
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}
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void cql_server::event_notifier::on_up(const gms::inet_address& endpoint)
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{
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bool was_up = _last_status_change.count(endpoint) && _last_status_change.at(endpoint) == event::status_change::status_type::UP;
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_last_status_change[endpoint] = event::status_change::status_type::UP;
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if (!was_up) {
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for (auto&& conn : _status_change_listeners) {
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using namespace cql_transport;
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if (!conn->_pending_requests_gate.is_closed()) {
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conn->write_response(conn->make_status_change_event(event::status_change::node_up(endpoint, conn->_server_addr.port)));
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};
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}
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}
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}
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void cql_server::event_notifier::on_down(const gms::inet_address& endpoint)
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{
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bool was_down = _last_status_change.count(endpoint) && _last_status_change.at(endpoint) == event::status_change::status_type::DOWN;
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_last_status_change[endpoint] = event::status_change::status_type::DOWN;
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if (!was_down) {
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for (auto&& conn : _status_change_listeners) {
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using namespace cql_transport;
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if (!conn->_pending_requests_gate.is_closed()) {
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conn->write_response(conn->make_status_change_event(event::status_change::node_down(endpoint, conn->_server_addr.port)));
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};
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}
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}
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}
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}
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