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#include <Common/ZooKeeper/ZooKeeperArgs.h>
#include <Common/ZooKeeper/KeeperException.h>
#include <base/find_symbols.h>
#include <base/getFQDNOrHostName.h>
#include <Poco/Util/AbstractConfiguration.h>
#include <Common/isLocalAddress.h>
#include <Common/StringUtils/StringUtils.h>
#include <Poco/String.h>
namespace DB
{
namespace ErrorCodes
{
extern const int BAD_ARGUMENTS;
}
}
namespace zkutil
{
ZooKeeperArgs::ZooKeeperArgs(const Poco::Util::AbstractConfiguration & config, const String & config_name)
{
if (config_name == "keeper_server")
initFromKeeperServerSection(config);
else
initFromKeeperSection(config, config_name);
if (!chroot.empty())
{
if (chroot.front() != '/')
throw KeeperException(
Coordination::Error::ZBADARGUMENTS,
"Root path in config file should start with '/', but got {}", chroot);
if (chroot.back() == '/')
chroot.pop_back();
}
if (session_timeout_ms < 0 || operation_timeout_ms < 0 || connection_timeout_ms < 0)
throw KeeperException::fromMessage(Coordination::Error::ZBADARGUMENTS, "Timeout cannot be negative");
/// init get_priority_load_balancing
get_priority_load_balancing.hostname_differences.resize(hosts.size());
const String & local_hostname = getFQDNOrHostName();
for (size_t i = 0; i < hosts.size(); ++i)
{
const String & node_host = hosts[i].substr(0, hosts[i].find_last_of(':'));
get_priority_load_balancing.hostname_differences[i] = DB::getHostNameDifference(local_hostname, node_host);
}
}
ZooKeeperArgs::ZooKeeperArgs(const String & hosts_string)
{
splitInto<','>(hosts, hosts_string);
}
void ZooKeeperArgs::initFromKeeperServerSection(const Poco::Util::AbstractConfiguration & config)
{
static constexpr std::string_view config_name = "keeper_server";
if (auto key = std::string{config_name} + ".tcp_port_secure";
config.has(key))
{
auto tcp_port_secure = config.getString(key);
if (tcp_port_secure.empty())
throw KeeperException::fromMessage(Coordination::Error::ZBADARGUMENTS, "Empty tcp_port_secure in config file");
}
bool secure{false};
std::string tcp_port;
if (auto tcp_port_secure_key = std::string{config_name} + ".tcp_port_secure";
config.has(tcp_port_secure_key))
{
secure = true;
tcp_port = config.getString(tcp_port_secure_key);
}
else if (auto tcp_port_key = std::string{config_name} + ".tcp_port";
config.has(tcp_port_key))
{
tcp_port = config.getString(tcp_port_key);
}
if (tcp_port.empty())
throw KeeperException::fromMessage(Coordination::Error::ZBADARGUMENTS, "No tcp_port or tcp_port_secure in config file");
if (auto coordination_key = std::string{config_name} + ".coordination_settings";
config.has(coordination_key))
{
if (auto operation_timeout_key = coordination_key + ".operation_timeout_ms";
config.has(operation_timeout_key))
operation_timeout_ms = config.getInt(operation_timeout_key);
if (auto session_timeout_key = coordination_key + ".session_timeout_ms";
config.has(session_timeout_key))
session_timeout_ms = config.getInt(session_timeout_key);
}
Poco::Util::AbstractConfiguration::Keys keys;
std::string raft_configuration_key = std::string{config_name} + ".raft_configuration";
config.keys(raft_configuration_key, keys);
for (const auto & key : keys)
{
if (startsWith(key, "server"))
hosts.push_back(
(secure ? "secure://" : "") + config.getString(raft_configuration_key + "." + key + ".hostname") + ":" + tcp_port);
}
static constexpr std::array load_balancing_keys
{
".zookeeper_load_balancing",
".keeper_load_balancing"
};
for (const auto * load_balancing_key : load_balancing_keys)
{
if (auto load_balancing_config = std::string{config_name} + load_balancing_key;
config.has(load_balancing_config))
{
String load_balancing_str = config.getString(load_balancing_config);
/// Use magic_enum to avoid dependency from dbms (`SettingFieldLoadBalancingTraits::fromString(...)`)
auto load_balancing = magic_enum::enum_cast<DB::LoadBalancing>(Poco::toUpper(load_balancing_str));
if (!load_balancing)
throw DB::Exception(DB::ErrorCodes::BAD_ARGUMENTS, "Unknown load balancing: {}", load_balancing_str);
get_priority_load_balancing.load_balancing = *load_balancing;
break;
}
}
}
void ZooKeeperArgs::initFromKeeperSection(const Poco::Util::AbstractConfiguration & config, const std::string & config_name)
{
Poco::Util::AbstractConfiguration::Keys keys;
config.keys(config_name, keys);
for (const auto & key : keys)
{
if (key.starts_with("node"))
{
hosts.push_back(
(config.getBool(config_name + "." + key + ".secure", false) ? "secure://" : "")
+ config.getString(config_name + "." + key + ".host") + ":" + config.getString(config_name + "." + key + ".port", "2181"));
}
else if (key == "session_timeout_ms")
{
session_timeout_ms = config.getInt(config_name + "." + key);
}
else if (key == "operation_timeout_ms")
{
operation_timeout_ms = config.getInt(config_name + "." + key);
}
else if (key == "connection_timeout_ms")
{
connection_timeout_ms = config.getInt(config_name + "." + key);
}
else if (key == "enable_fault_injections_during_startup")
{
enable_fault_injections_during_startup = config.getBool(config_name + "." + key);
}
else if (key == "send_fault_probability")
{
send_fault_probability = config.getDouble(config_name + "." + key);
}
else if (key == "recv_fault_probability")
{
recv_fault_probability = config.getDouble(config_name + "." + key);
}
else if (key == "send_sleep_probability")
{
send_sleep_probability = config.getDouble(config_name + "." + key);
}
else if (key == "recv_sleep_probability")
{
recv_sleep_probability = config.getDouble(config_name + "." + key);
}
else if (key == "send_sleep_ms")
{
send_sleep_ms = config.getUInt64(config_name + "." + key);
}
else if (key == "recv_sleep_ms")
{
recv_sleep_ms = config.getUInt64(config_name + "." + key);
}
else if (key == "identity")
{
identity = config.getString(config_name + "." + key);
if (!identity.empty())
auth_scheme = "digest";
}
else if (key == "root")
{
chroot = config.getString(config_name + "." + key);
}
else if (key == "implementation")
{
implementation = config.getString(config_name + "." + key);
}
else if (key == "zookeeper_load_balancing" || key == "keeper_load_balancing")
{
String load_balancing_str = config.getString(config_name + "." + key);
/// Use magic_enum to avoid dependency from dbms (`SettingFieldLoadBalancingTraits::fromString(...)`)
auto load_balancing = magic_enum::enum_cast<DB::LoadBalancing>(Poco::toUpper(load_balancing_str));
if (!load_balancing)
throw DB::Exception(DB::ErrorCodes::BAD_ARGUMENTS, "Unknown load balancing: {}", load_balancing_str);
get_priority_load_balancing.load_balancing = *load_balancing;
}
else if (key == "fallback_session_lifetime")
{
fallback_session_lifetime = SessionLifetimeConfiguration
{
.min_sec = config.getUInt(config_name + "." + key + ".min"),
.max_sec = config.getUInt(config_name + "." + key + ".max"),
};
}
else
throw KeeperException(Coordination::Error::ZBADARGUMENTS, "Unknown key {} in config file", key);
}
}
}
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