69a385fd9d
Schema related files are moved there. This excludes schema files that also interact with mutations, because the mutation module depends on the schema. Those files will have to go into a separate module. Closes #12858
78 lines
2.5 KiB
C++
78 lines
2.5 KiB
C++
/*
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* Copyright (C) 2021-present ScyllaDB
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*/
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/*
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* SPDX-License-Identifier: AGPL-3.0-or-later
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*/
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#pragma once
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#include <seastar/core/sharded.hh>
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#include "schema/schema_fwd.hh"
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#include "sstables/shared_sstable.hh"
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using namespace seastar;
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namespace replica {
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class database;
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}
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namespace netw { class messaging_service; }
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namespace db {
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class system_distributed_keyspace;
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namespace view {
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class view_update_generator;
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}
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}
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// The handler of the 'storage_service/load_new_ss_tables' endpoint which, in
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// turn, is the target of the 'nodetool refresh' command.
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// Gets sstables from the upload directory and makes them available in the
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// system. Built on top of the distributed_loader functionality.
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class sstables_loader : public seastar::peering_sharded_service<sstables_loader> {
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sharded<replica::database>& _db;
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sharded<db::system_distributed_keyspace>& _sys_dist_ks;
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sharded<db::view::view_update_generator>& _view_update_generator;
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netw::messaging_service& _messaging;
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// Note that this is obviously only valid for the current shard. Users of
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// this facility should elect a shard to be the coordinator based on any
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// given objective criteria
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//
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// It shouldn't be impossible to actively serialize two callers if the need
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// ever arise.
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bool _loading_new_sstables = false;
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future<> load_and_stream(sstring ks_name, sstring cf_name,
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table_id, std::vector<sstables::shared_sstable> sstables,
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bool primary_replica_only);
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public:
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sstables_loader(sharded<replica::database>& db,
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sharded<db::system_distributed_keyspace>& sys_dist_ks,
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sharded<db::view::view_update_generator>& view_update_generator,
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netw::messaging_service& messaging)
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: _db(db)
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, _sys_dist_ks(sys_dist_ks)
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, _view_update_generator(view_update_generator)
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, _messaging(messaging)
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{
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}
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/**
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* Load new SSTables not currently tracked by the system
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*
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* This can be called, for instance, after copying a batch of SSTables to a CF directory.
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*
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* This should not be called in parallel for the same keyspace / column family, and doing
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* so will throw an std::runtime_exception.
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*
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* @param ks_name the keyspace in which to search for new SSTables.
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* @param cf_name the column family in which to search for new SSTables.
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* @return a future<> when the operation finishes.
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*/
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future<> load_new_sstables(sstring ks_name, sstring cf_name,
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bool load_and_stream, bool primary_replica_only);
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};
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