Files
scylladb/db/system_distributed_keyspace.hh
Duarte Nunes 78b232d98f db: Introduce system_distributed_keyspace
This patch introduces a distributed system keyspace, used to hold
system tables that need to be replicated across a set of replicas
(that is, can't use the LocalStrategy).

In following patches, we will use this keyspace to hold a table
containing view building status updates for each node, used to support
range movements and a new nodetool command.

Fixes #3237

Signed-off-by: Duarte Nunes <duarte@scylladb.com>
2018-03-27 01:20:10 +01:00

58 lines
1.7 KiB
C++

/*
* Copyright (C) 2018 ScyllaDB
*/
/*
* This file is part of Scylla.
*
* Scylla is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* Scylla is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with Scylla. If not, see <http://www.gnu.org/licenses/>.
*/
#pragma once
#include "bytes.hh"
#include "cql3/query_processor.hh"
#include "schema.hh"
#include "service/migration_manager.hh"
#include "utils/UUID.hh"
#include <seastar/core/future.hh>
#include <seastar/core/sstring.hh>
#include <unordered_map>
namespace db {
class system_distributed_keyspace {
public:
static constexpr auto NAME = "system_distributed";
static constexpr auto VIEW_BUILD_STATUS = "view_build_status";
private:
cql3::query_processor& _qp;
service::migration_manager& _mm;
public:
system_distributed_keyspace(cql3::query_processor&, service::migration_manager&);
future<> start();
future<> stop();
future<std::unordered_map<utils::UUID, 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;
};
}