7fefd57b74
So that it knows in which group to run its code in the future. Signed-off-by: Pavel Emelyanov <xemul@scylladb.com>
77 lines
2.4 KiB
C++
77 lines
2.4 KiB
C++
/*
|
|
* Copyright (C) 2021-present ScyllaDB
|
|
*/
|
|
|
|
/*
|
|
* SPDX-License-Identifier: AGPL-3.0-or-later
|
|
*/
|
|
|
|
#pragma once
|
|
|
|
#include <seastar/core/sharded.hh>
|
|
#include "schema/schema_fwd.hh"
|
|
#include "sstables/shared_sstable.hh"
|
|
|
|
using namespace seastar;
|
|
|
|
namespace replica {
|
|
class database;
|
|
}
|
|
|
|
namespace netw { class messaging_service; }
|
|
namespace db {
|
|
namespace view {
|
|
class view_builder;
|
|
}
|
|
}
|
|
|
|
// The handler of the 'storage_service/load_new_ss_tables' endpoint which, in
|
|
// turn, is the target of the 'nodetool refresh' command.
|
|
// Gets sstables from the upload directory and makes them available in the
|
|
// system. Built on top of the distributed_loader functionality.
|
|
class sstables_loader : public seastar::peering_sharded_service<sstables_loader> {
|
|
sharded<replica::database>& _db;
|
|
netw::messaging_service& _messaging;
|
|
sharded<db::view::view_builder>& _view_builder;
|
|
seastar::scheduling_group _sched_group;
|
|
|
|
// Note that this is obviously only valid for the current shard. Users of
|
|
// this facility should elect a shard to be the coordinator based on any
|
|
// given objective criteria
|
|
//
|
|
// It shouldn't be impossible to actively serialize two callers if the need
|
|
// ever arise.
|
|
bool _loading_new_sstables = false;
|
|
|
|
future<> load_and_stream(sstring ks_name, sstring cf_name,
|
|
table_id, std::vector<sstables::shared_sstable> sstables,
|
|
bool primary_replica_only);
|
|
|
|
public:
|
|
sstables_loader(sharded<replica::database>& db,
|
|
netw::messaging_service& messaging,
|
|
sharded<db::view::view_builder>& vb,
|
|
seastar::scheduling_group sg)
|
|
: _db(db)
|
|
, _messaging(messaging)
|
|
, _view_builder(vb)
|
|
, _sched_group(std::move(sg))
|
|
{
|
|
}
|
|
|
|
/**
|
|
* Load new SSTables not currently tracked by the system
|
|
*
|
|
* This can be called, for instance, after copying a batch of SSTables to a CF directory.
|
|
*
|
|
* This should not be called in parallel for the same keyspace / column family, and doing
|
|
* so will throw an std::runtime_exception.
|
|
*
|
|
* @param ks_name the keyspace in which to search for new SSTables.
|
|
* @param cf_name the column family in which to search for new SSTables.
|
|
* @return a future<> when the operation finishes.
|
|
*/
|
|
future<> load_new_sstables(sstring ks_name, sstring cf_name,
|
|
bool load_and_stream, bool primary_replica_only);
|
|
};
|