Files
scylladb/test/raft/replication.cc
Laszlo Ersek 3a32f3de81 test/raft/replication: take an "index_t start_idx" in create_log()
raft_cluster::get_states() passes a "start_idx" to create_log(), and
create_log() uses it as an "index_t" object. Match the type of "start_idx"
to its name.

This patch is best viewed with "git show -W".

Signed-off-by: Laszlo Ersek <laszlo.ersek@scylladb.com>
2024-08-14 22:54:42 +02:00

94 lines
2.9 KiB
C++

/*
* Copyright (C) 2021-present ScyllaDB
*/
/*
* SPDX-License-Identifier: AGPL-3.0-or-later
*/
#undef SEASTAR_TESTING_MAIN
#include "utils/to_string.hh"
#include "replication.hh"
seastar::logger tlogger("test");
seastar::semaphore snapshot_sync(0);
// application of a snapshot with that id will be delayed until snapshot_sync is signaled
raft::snapshot_id delay_apply_snapshot{utils::UUID(0, 0xdeadbeaf)};
// sending of a snapshot with that id will be delayed until snapshot_sync is signaled
raft::snapshot_id delay_send_snapshot{utils::UUID(0xdeadbeaf, 0)};
std::vector<raft::server_id> to_raft_id_vec(std::vector<node_id> nodes) noexcept {
std::vector<raft::server_id> ret;
for (auto node: nodes) {
ret.push_back(raft::server_id{to_raft_uuid(node.id)});
}
return ret;
}
raft::server_address_set address_set(std::vector<node_id> nodes) noexcept {
return address_set(to_raft_id_vec(nodes));
}
raft::config_member_set config_set(std::vector<node_id> nodes) noexcept {
return config_set(to_raft_id_vec(nodes));
}
size_t test_case::get_first_val() {
// Count existing leader snap index and entries, if present
size_t first_val = 0;
if (initial_leader < initial_states.size()) {
first_val += initial_states[initial_leader].le.size();
}
if (initial_leader < initial_snapshots.size()) {
first_val = initial_snapshots[initial_leader].snap.idx.value();
}
return first_val;
}
std::mt19937 random_generator() noexcept {
auto& gen = seastar::testing::local_random_engine;
return std::mt19937(gen());
}
int rand() noexcept {
static thread_local std::uniform_int_distribution<int> dist(0, std::numeric_limits<uint8_t>::max());
static thread_local auto gen = random_generator();
return dist(gen);
}
size_t apply_changes(raft::server_id id, const std::vector<raft::command_cref>& commands,
lw_shared_ptr<hasher_int> hasher) {
size_t entries = 0;
tlogger.debug("sm::apply_changes[{}] got {} entries", id, commands.size());
for (auto&& d : commands) {
auto is = ser::as_input_stream(d);
int n = ser::deserialize(is, boost::type<int>());
if (n != dummy_command) {
entries++;
hasher->update(n); // running hash (values and snapshots)
tlogger.debug("{}: apply_changes {}", id, n);
}
}
return entries;
}
std::vector<raft::log_entry> create_log(std::vector<log_entry> list, raft::index_t start_idx) {
std::vector<raft::log_entry> log;
raft::index_t i = start_idx;
for (auto e : list) {
if (std::holds_alternative<int>(e.data)) {
log.push_back(raft::log_entry{raft::term_t(e.term), i++,
create_command(std::get<int>(e.data))});
} else {
log.push_back(raft::log_entry{raft::term_t(e.term), i++,
std::get<raft::configuration>(e.data)});
}
}
return log;
}