Files
scylladb/db/consistency_level.hh
Pavel Emelyanov 64c9359443 storage_proxy: Don't use default-initialized endpoint in get_read_executor()
After calling filter_for_query() the extra_replica to speculate to may
be left default-initialized which is :0 ipv6 address. Later below this
address is used as-is to check if it belongs to the same DC or not which
is not nice, as :0 is not an address of any existing endpoint.

Recent move of dc/rack data onto topology made this place reveal itself
by emitting the internal error due to :0 not being present on the
topology's collection of endpoints. Prior to this move the dc filter
would count :0 as belonging to "default_dc" datacenter which may or may
not match with the dc of the local node.

The fix is to explicitly tell set extra_replica from unset one.

fixes: #11825

Signed-off-by: Pavel Emelyanov <xemul@scylladb.com>

Closes #11833
2022-10-25 09:16:50 +03:00

87 lines
2.8 KiB
C++

/*
* Copyright (C) 2015-present ScyllaDB
*
* Modified by ScyllaDB
*/
/*
* SPDX-License-Identifier: (AGPL-3.0-or-later and Apache-2.0)
*/
#pragma once
#include "db/consistency_level_type.hh"
#include "db/read_repair_decision.hh"
#include "exceptions/exceptions.hh"
#include "gms/inet_address.hh"
#include "inet_address_vectors.hh"
#include "log.hh"
#include "replica/database_fwd.hh"
#include <iosfwd>
#include <vector>
#include <unordered_set>
namespace gms {
class gossiper;
};
namespace locator {
class effective_replication_map;
}
namespace db {
extern logging::logger cl_logger;
size_t quorum_for(const locator::effective_replication_map& erm);
size_t local_quorum_for(const locator::effective_replication_map& erm, const sstring& dc);
size_t block_for_local_serial(const locator::effective_replication_map& erm);
size_t block_for_each_quorum(const locator::effective_replication_map& erm);
size_t block_for(const locator::effective_replication_map& erm, consistency_level cl);
bool is_datacenter_local(consistency_level l);
inet_address_vector_replica_set
filter_for_query(consistency_level cl,
const locator::effective_replication_map& erm,
inet_address_vector_replica_set live_endpoints,
const inet_address_vector_replica_set& preferred_endpoints,
read_repair_decision read_repair,
const gms::gossiper& g,
std::optional<gms::inet_address>* extra,
replica::column_family* cf);
inet_address_vector_replica_set filter_for_query(consistency_level cl,
const locator::effective_replication_map& erm,
inet_address_vector_replica_set& live_endpoints,
const inet_address_vector_replica_set& preferred_endpoints,
const gms::gossiper& g,
replica::column_family* cf);
struct dc_node_count {
size_t live = 0;
size_t pending = 0;
};
bool
is_sufficient_live_nodes(consistency_level cl,
const locator::effective_replication_map& erm,
const inet_address_vector_replica_set& live_endpoints);
template<typename Range, typename PendingRange = std::array<gms::inet_address, 0>>
void assure_sufficient_live_nodes(
consistency_level cl,
const locator::effective_replication_map& erm,
const Range& live_endpoints,
const PendingRange& pending_endpoints = std::array<gms::inet_address, 0>());
extern template void assure_sufficient_live_nodes(consistency_level, const locator::effective_replication_map&, const inet_address_vector_replica_set&, const std::array<gms::inet_address, 0>&);
extern template void assure_sufficient_live_nodes(db::consistency_level, const locator::effective_replication_map&, const inet_address_vector_replica_set&, const utils::small_vector<gms::inet_address, 1ul>&);
}