Ejemplo n.º 1
0
void Quota::loadFromConfig(const String & config_elem, const String & name_, Poco::Util::AbstractConfiguration & config, pcg64 & rng)
{
    name = name_;

    bool new_keyed_by_ip = config.has(config_elem + ".keyed_by_ip");
    bool new_is_keyed = new_keyed_by_ip || config.has(config_elem + ".keyed");

    if (new_is_keyed != is_keyed || new_keyed_by_ip != keyed_by_ip)
    {
        keyed_by_ip = new_keyed_by_ip;
        is_keyed = new_is_keyed;
        /// Meaning of keys has been changed. Throw away accumulated values.
        quota_for_keys.clear();
    }

    ignore_key_if_not_keyed = config.has(config_elem + ".ignore_key_if_not_keyed");

    QuotaForIntervals new_max(name, {});
    new_max.initFromConfig(config_elem, config, rng);
    if (!new_max.hasEqualConfiguration(max))
    {
        max = new_max;
        for (auto & quota : quota_for_keys)
            quota.second->setMax(max);
    }
}
Ejemplo n.º 2
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void SettingsConstraints::loadFromConfig(const String & path_to_constraints, const Poco::Util::AbstractConfiguration & config)
{
    if (!config.has(path_to_constraints))
        throw Exception("There is no path '" + path_to_constraints + "' in configuration file.", ErrorCodes::NO_ELEMENTS_IN_CONFIG);

    Poco::Util::AbstractConfiguration::Keys names;
    config.keys(path_to_constraints, names);

    for (const String & name : names)
    {
        String path_to_name = path_to_constraints + "." + name;
        Poco::Util::AbstractConfiguration::Keys constraint_types;
        config.keys(path_to_name, constraint_types);
        for (const String & constraint_type : constraint_types)
        {
            auto get_constraint_value = [&]{ return config.getString(path_to_name + "." + constraint_type); };
            if (constraint_type == "min")
                setMinValue(name, get_constraint_value());
            else if (constraint_type == "max")
                setMaxValue(name, get_constraint_value());
            else if (constraint_type == "readonly")
                setReadOnly(name, true);
            else
                throw Exception("Setting " + constraint_type + " value for " + name + " isn't supported", ErrorCodes::NOT_IMPLEMENTED);
        }
    }
}
Ejemplo n.º 3
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DictionaryLifetime::DictionaryLifetime(const Poco::Util::AbstractConfiguration & config, const std::string & config_prefix)
{
	const auto & lifetime_min_key = config_prefix + ".min";
	const auto has_min = config.has(lifetime_min_key);

	this->min_sec = has_min ? config.getInt(lifetime_min_key) : config.getInt(config_prefix);
	this->max_sec = has_min ? config.getInt(config_prefix + ".max") : this->min_sec;
}
Ejemplo n.º 4
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/*virtual*/
void Renderer::Initialize(uint width,uint height,bool fullScreen)
{
    Poco::Util::AbstractConfiguration* pConfigurationFile =
        Poly::Application::Get()->ConfigurationFile();

    mFpsLogging = pConfigurationFile->getBool("Renderer.LogFPS",false);
    mShadersPath = pConfigurationFile->getString("Renderer.ShadersPath","");
    mVerticalSync = pConfigurationFile->getBool("Renderer.VerticalSync",false);
}
Ejemplo n.º 5
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DictionarySpecialAttribute::DictionarySpecialAttribute(const Poco::Util::AbstractConfiguration & config, const std::string & config_prefix)
	: name{config.getString(config_prefix + ".name", "")},
	  expression{config.getString(config_prefix + ".expression", "")}
{
	if (name.empty() && !expression.empty())
		throw Exception{
			"Element " + config_prefix + ".name is empty",
			ErrorCodes::BAD_ARGUMENTS};
}
Ejemplo n.º 6
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Macros::Macros(const Poco::Util::AbstractConfiguration & config, const String & root_key)
{
    Poco::Util::AbstractConfiguration::Keys keys;
    config.keys(root_key, keys);
    for (const String & key : keys)
    {
        macros[key] = config.getString(root_key + "." + key);
    }
}
Ejemplo n.º 7
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void QuotaValues<Counter>::initFromConfig(const String & config_elem, Poco::Util::AbstractConfiguration & config)
{
    queries             = config.getUInt64(config_elem + ".queries",        0);
    errors              = config.getUInt64(config_elem + ".errors",         0);
    result_rows         = config.getUInt64(config_elem + ".result_rows",    0);
    result_bytes        = config.getUInt64(config_elem + ".result_bytes",   0);
    read_rows           = config.getUInt64(config_elem + ".read_rows",      0);
    read_bytes          = config.getUInt64(config_elem + ".read_bytes",     0);
    execution_time_usec = config.getUInt64(config_elem + ".execution_time", 0) * 1000000ULL;
}
Ejemplo n.º 8
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void SettingsConstraints::setProfile(const String & profile_name, const Poco::Util::AbstractConfiguration & config)
{
    String parent_profile = "profiles." + profile_name + ".profile";
    if (config.has(parent_profile))
        setProfile(parent_profile, config); // Inheritance of one profile from another.

    String path_to_constraints = "profiles." + profile_name + ".constraints";
    if (config.has(path_to_constraints))
        loadFromConfig(path_to_constraints, config);
}
Ejemplo n.º 9
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std::unique_ptr<RegionsHierarchies> GeoDictionariesLoader::reloadRegionsHierarchies(
    const Poco::Util::AbstractConfiguration & config)
{
    static constexpr auto config_key = "path_to_regions_hierarchy_file";

    if (!config.has(config_key))
        return {};

    const auto default_hierarchy_file = config.getString(config_key);
    auto data_provider = std::make_unique<RegionsHierarchiesDataProvider>(default_hierarchy_file);
    return std::make_unique<RegionsHierarchies>(std::move(data_provider));
}
Ejemplo n.º 10
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std::unique_ptr<RegionsNames> GeoDictionariesLoader::reloadRegionsNames(
    const Poco::Util::AbstractConfiguration & config)
{
    static constexpr auto config_key = "path_to_regions_names_files";

    if (!config.has(config_key))
        return {};

    const auto directory = config.getString(config_key);
    auto data_provider = std::make_unique<RegionsNamesDataProvider>(directory);
    return std::make_unique<RegionsNames>(std::move(data_provider));
}
Ejemplo n.º 11
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void Settings::loadSettingsFromConfig(const String & path, const Poco::Util::AbstractConfiguration & config)
{
	if (!config.has(path))
		throw Exception("There is no path '" + path + "' in configuration file.", ErrorCodes::NO_ELEMENTS_IN_CONFIG);

	Poco::Util::AbstractConfiguration::Keys config_keys;
	config.keys(path, config_keys);

	for (const std::string & key : config_keys)
	{
		set(key, config.getString(path + "." + key));
	}
}
Ejemplo n.º 12
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HTTPDictionarySource::HTTPDictionarySource(const DictionaryStructure & dict_struct_,
    const Poco::Util::AbstractConfiguration & config, const std::string & config_prefix,
    Block & sample_block, const Context & context)
    : log(&Logger::get("HTTPDictionarySource")),
    update_time{std::chrono::system_clock::from_time_t(0)},
    dict_struct{dict_struct_},
    url{config.getString(config_prefix + ".url", "")},
    update_field{config.getString(config_prefix + ".update_field", "")},
    format{config.getString(config_prefix + ".format")},
    sample_block{sample_block},
    context(context),
    timeouts(ConnectionTimeouts::getHTTPTimeouts(context.getSettingsRef()))
{
}
Ejemplo n.º 13
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MySQLDictionarySource::MySQLDictionarySource(const DictionaryStructure & dict_struct_,
	const Poco::Util::AbstractConfiguration & config, const std::string & config_prefix,
	const Block & sample_block)
	: dict_struct{dict_struct_},
	  db{config.getString(config_prefix + ".db", "")},
	  table{config.getString(config_prefix + ".table")},
	  where{config.getString(config_prefix + ".where", "")},
	  dont_check_update_time{config.getBool(config_prefix + ".dont_check_update_time", false)},
	  sample_block{sample_block},
	  pool{config, config_prefix},
	  query_builder{dict_struct, db, table, where},
	  load_all_query{query_builder.composeLoadAllQuery()}
{
}
LibraryDictionarySource::LibraryDictionarySource(
    const DictionaryStructure & dict_struct_,
    const Poco::Util::AbstractConfiguration & config,
    const std::string & config_prefix,
    Block & sample_block)
    : log(&Logger::get("LibraryDictionarySource"))
    , dict_struct{dict_struct_}
    , config_prefix{config_prefix}
    , path{config.getString(config_prefix + ".path", "")}
    , sample_block{sample_block}
{
    if (!Poco::File(path).exists())
        throw Exception(
            "LibraryDictionarySource: Can't load lib " + toString() + ": " + Poco::File(path).path() + " - File doesn't exist",
            ErrorCodes::FILE_DOESNT_EXIST);
    description.init(sample_block);
    library = std::make_shared<SharedLibrary>(path, RTLD_LAZY
#if defined(RTLD_DEEPBIND) // Does not exists in freebsd
        | RTLD_DEEPBIND
#endif
    );
    settings = std::make_shared<CStringsHolder>(getLibSettings(config, config_prefix + lib_config_settings));
    if (auto libNew = library->tryGet<decltype(lib_data) (*)(decltype(&settings->strings), decltype(&ClickHouseLibrary::log))>(
            "ClickHouseDictionary_v3_libNew"))
        lib_data = libNew(&settings->strings, ClickHouseLibrary::log);
}
Ejemplo n.º 15
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SystemLogs::SystemLogs(Context & global_context, const Poco::Util::AbstractConfiguration & config)
{
    query_log = createSystemLog<QueryLog>(global_context, "system", "query_log", config, "query_log");
    query_thread_log = createSystemLog<QueryThreadLog>(global_context, "system", "query_thread_log", config, "query_thread_log");
    part_log = createSystemLog<PartLog>(global_context, "system", "part_log", config, "part_log");

    part_log_database = config.getString("part_log.database", "system");
}
Ejemplo n.º 16
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void Utility::copyDeltaProperties(const Poco::Util::AbstractConfiguration& ref, const Poco::Util::AbstractConfiguration& source, Poco::Util::AbstractConfiguration& target, const std::set<std::string>& excludeSet, const std::string& root)
{
	Poco::Util::AbstractConfiguration::Keys keys;
	source.keys(root, keys);

	if (keys.empty() && source.hasProperty(root))
	{
		if ((ref.hasProperty(root) && ref.getRawString(root) != source.getRawString(root)) || !ref.hasProperty(root))
		{
			target.setString(root, source.getRawString(root));
		}
	}
	else
	{
		for (Poco::Util::AbstractConfiguration::Keys::const_iterator it = keys.begin(); it != keys.end(); ++it)
		{
			std::string fullKey = root;
			if (!fullKey.empty()) fullKey += '.';
			fullKey.append(*it);
			if (excludeSet.find(fullKey) == excludeSet.end())
			{
				copyDeltaProperties(ref, source, target, excludeSet, fullKey);
			}
		}
	}
}
Ejemplo n.º 17
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DictionaryStructure::DictionaryStructure(const Poco::Util::AbstractConfiguration & config, const std::string & config_prefix)
{
	const auto has_id = config.has(config_prefix + ".id");
	const auto has_key = config.has(config_prefix + ".key");

	if (has_key && has_id)
		throw Exception{"Only one of 'id' and 'key' should be specified", ErrorCodes::BAD_ARGUMENTS};

	if (has_id)
		id.emplace(config, config_prefix + ".id");
	else if (has_key)
	{
		key.emplace(getAttributes(config, config_prefix + ".key", false, false));
		if (key->empty())
			throw Exception{"Empty 'key' supplied", ErrorCodes::BAD_ARGUMENTS};
	}
	else
		throw Exception{"Dictionary structure should specify either 'id' or 'key'", ErrorCodes::BAD_ARGUMENTS};

	if (id)
	{
		if (id->name.empty())
			throw Exception{"'id' cannot be empty", ErrorCodes::BAD_ARGUMENTS};

		if (config.has(config_prefix + ".range_min"))
			range_min.emplace(config, config_prefix + ".range_min");

		if (config.has(config_prefix + ".range_max"))
			range_max.emplace(config, config_prefix + ".range_max");

		if (!id->expression.empty() ||
			(range_min && !range_min->expression.empty()) ||
			(range_max && !range_max->expression.empty()))
			has_expressions = true;
	}

	attributes = getAttributes(config, config_prefix);
	if (attributes.empty())
		throw Exception{"Dictionary has no attributes defined", ErrorCodes::BAD_ARGUMENTS};
}
Ejemplo n.º 18
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void SecurityManager::loadFromConfig(Poco::Util::AbstractConfiguration & config)
{
    Container new_users;

    Poco::Util::AbstractConfiguration::Keys config_keys;
    config.keys("users", config_keys);

    for (const std::string & key : config_keys)
    {
        auto user = std::make_shared<const User>(key, "users." + key, config);
        new_users.emplace(key, std::move(user));
    }

    users = std::move(new_users);
}
Ejemplo n.º 19
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void QuotaForIntervals::initFromConfig(const String & config_elem, Poco::Util::AbstractConfiguration & config, pcg64 & rng)
{
    Poco::Util::AbstractConfiguration::Keys config_keys;
    config.keys(config_elem, config_keys);

    for (Poco::Util::AbstractConfiguration::Keys::const_iterator it = config_keys.begin(); it != config_keys.end(); ++it)
    {
        if (!startsWith(*it, "interval"))
            continue;

        String interval_config_elem = config_elem + "." + *it;
        time_t duration = config.getInt(interval_config_elem + ".duration", 0);
        time_t offset = 0;

        if (!duration) /// Skip quotas with zero duration
            continue;

        bool randomize = config.getBool(interval_config_elem + ".randomize", false);
        if (randomize)
            offset = std::uniform_int_distribution<decltype(duration)>(0, duration - 1)(rng);

        cont[duration].initFromConfig(interval_config_elem, duration, randomize, offset, config);
    }
}
Ejemplo n.º 20
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MongoDBDictionarySource::MongoDBDictionarySource(
	const DictionaryStructure & dict_struct, const Poco::Util::AbstractConfiguration & config,
	const std::string & config_prefix, Block & sample_block)
	: MongoDBDictionarySource(
		dict_struct,
		config.getString(config_prefix + ".host"),
		config.getUInt(config_prefix + ".port"),
		config.getString(config_prefix + ".user", ""),
		config.getString(config_prefix + ".password", ""),
		config.getString(config_prefix + ".db", ""),
		config.getString(config_prefix + ".collection"),
		sample_block)
{
}
Ejemplo n.º 21
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void Quotas::loadFromConfig(Poco::Util::AbstractConfiguration & config)
{
    pcg64 rng;

    Poco::Util::AbstractConfiguration::Keys config_keys;
    config.keys("quotas", config_keys);

    /// Remove keys, that now absent in config.
    std::set<std::string> keys_set(config_keys.begin(), config_keys.end());
    for (Container::iterator it = cont.begin(); it != cont.end();)
    {
        if (keys_set.count(it->first))
            ++it;
        else
            cont.erase(it++);
    }

    for (Poco::Util::AbstractConfiguration::Keys::const_iterator it = config_keys.begin(); it != config_keys.end(); ++it)
    {
        if (!cont.count(*it))
            cont.try_emplace(*it);
        cont[*it].loadFromConfig("quotas." + *it, *it, config, rng);
    }
}
Ejemplo n.º 22
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DictionaryPtr DictionaryFactory::create(const std::string & name, Poco::Util::AbstractConfiguration & config,
	const std::string & config_prefix, Context & context) const
{
	Poco::Util::AbstractConfiguration::Keys keys;
	const auto & layout_prefix = config_prefix + ".layout";
	config.keys(layout_prefix, keys);
	if (keys.size() != 1)
		throw Exception{name + ": element dictionary.layout should have exactly one child element",
			ErrorCodes::EXCESSIVE_ELEMENT_IN_CONFIG};

	const DictionaryStructure dict_struct{config, config_prefix + ".structure"};

	auto source_ptr = DictionarySourceFactory::instance().create(
		name, config, config_prefix + ".source", dict_struct, context);

	const DictionaryLifetime dict_lifetime{config, config_prefix + ".lifetime"};

	const bool require_nonempty = config.getBool(config_prefix + ".require_nonempty", false);

	const auto & layout_type = keys.front();

	if ("range_hashed" == layout_type)
	{
		if (dict_struct.key)
			throw Exception{"'key' is not supported for dictionary of layout 'range_hashed'",
				ErrorCodes::UNSUPPORTED_METHOD};

		if (!dict_struct.range_min || !dict_struct.range_max)
			throw Exception{name + ": dictionary of layout 'range_hashed' requires .structure.range_min and .structure.range_max",
				ErrorCodes::BAD_ARGUMENTS};

		return std::make_unique<RangeHashedDictionary>(name, dict_struct, std::move(source_ptr), dict_lifetime, require_nonempty);
	}
	else if ("complex_key_hashed" == layout_type)
	{
		if (!dict_struct.key)
			throw Exception{"'key' is required for dictionary of layout 'complex_key_hashed'",
				ErrorCodes::BAD_ARGUMENTS};

		return std::make_unique<ComplexKeyHashedDictionary>(name, dict_struct, std::move(source_ptr), dict_lifetime, require_nonempty);
	}
	else if ("complex_key_cache" == layout_type)
	{
		if (!dict_struct.key)
			throw Exception{"'key' is required for dictionary of layout 'complex_key_hashed'",
				ErrorCodes::BAD_ARGUMENTS};

		const auto size = config.getInt(layout_prefix + ".complex_key_cache.size_in_cells");
		if (size == 0)
			throw Exception{name + ": dictionary of layout 'cache' cannot have 0 cells",
				ErrorCodes::TOO_SMALL_BUFFER_SIZE};

		if (require_nonempty)
			throw Exception{name + ": dictionary of layout 'cache' cannot have 'require_nonempty' attribute set",
				ErrorCodes::BAD_ARGUMENTS};

		return std::make_unique<ComplexKeyCacheDictionary>(name, dict_struct, std::move(source_ptr), dict_lifetime, size);
	}
	else
	{
		if (dict_struct.key)
			throw Exception{"'key' is not supported for dictionary of layout '" + layout_type + "'",
				ErrorCodes::UNSUPPORTED_METHOD};

		if (dict_struct.range_min || dict_struct.range_max)
			throw Exception{name + ": elements .structure.range_min and .structure.range_max should be defined only "
					"for a dictionary of layout 'range_hashed'",
				ErrorCodes::BAD_ARGUMENTS};

		if ("flat" == layout_type)
		{
			return std::make_unique<FlatDictionary>(name, dict_struct, std::move(source_ptr), dict_lifetime, require_nonempty);
		}
		else if ("hashed" == layout_type)
		{
			return std::make_unique<HashedDictionary>(name, dict_struct, std::move(source_ptr), dict_lifetime, require_nonempty);
		}
		else if ("cache" == layout_type)
		{
			const auto size = config.getInt(layout_prefix + ".cache.size_in_cells");
			if (size == 0)
				throw Exception{name + ": dictionary of layout 'cache' cannot have 0 cells",
					ErrorCodes::TOO_SMALL_BUFFER_SIZE};

			if (require_nonempty)
				throw Exception{name + ": dictionary of layout 'cache' cannot have 'require_nonempty' attribute set",
					ErrorCodes::BAD_ARGUMENTS};

			return std::make_unique<CacheDictionary>(name, dict_struct, std::move(source_ptr), dict_lifetime, size);
		}
	}

	throw Exception{name + ": unknown dictionary layout type: " + layout_type,
		ErrorCodes::UNKNOWN_ELEMENT_IN_CONFIG};
};
Ejemplo n.º 23
0
std::vector<DictionaryAttribute> DictionaryStructure::getAttributes(
	const Poco::Util::AbstractConfiguration & config, const std::string & config_prefix,
	const bool hierarchy_allowed, const bool allow_null_values)
{
	Poco::Util::AbstractConfiguration::Keys keys;
	config.keys(config_prefix, keys);
	auto has_hierarchy = false;

	std::vector<DictionaryAttribute> attributes;

	for (const auto & key : keys)
	{
		if (0 != strncmp(key.data(), "attribute", strlen("attribute")))
			continue;

		const auto prefix = config_prefix + '.' + key + '.';

		const auto name = config.getString(prefix + "name");
		const auto type_string = config.getString(prefix + "type");
		const auto type = DataTypeFactory::instance().get(type_string);
		const auto underlying_type = getAttributeUnderlyingType(type_string);

		const auto expression = config.getString(prefix + "expression", "");
		if (!expression.empty())
			has_expressions = true;

		Field null_value;
		if (allow_null_values)
		{
			const auto null_value_string = config.getString(prefix + "null_value");
			try
			{
				ReadBufferFromString null_value_buffer{null_value_string};
				ColumnPtr column_with_null_value = type->createColumn();
				type->deserializeTextEscaped(*column_with_null_value, null_value_buffer);
				null_value = (*column_with_null_value)[0];
			}
			catch (const std::exception & e)
			{
				throw Exception{
					std::string{"Error parsing null_value: "} + e.what(),
					ErrorCodes::BAD_ARGUMENTS};
			}
		}

		const auto hierarchical = config.getBool(prefix + "hierarchical", false);
		const auto injective = config.getBool(prefix + "injective", false);
		if (name.empty())
			throw Exception{
				"Properties 'name' and 'type' of an attribute cannot be empty",
				ErrorCodes::BAD_ARGUMENTS};

		if (has_hierarchy && !hierarchy_allowed)
			throw Exception{
				"Hierarchy not allowed in '" + prefix,
				ErrorCodes::BAD_ARGUMENTS};

		if (has_hierarchy && hierarchical)
			throw Exception{
				"Only one hierarchical attribute supported",
				ErrorCodes::BAD_ARGUMENTS};

		has_hierarchy = has_hierarchy || hierarchical;

		attributes.emplace_back(DictionaryAttribute{
			name, underlying_type, type, expression, null_value, hierarchical, injective
		});
	}

	return attributes;
}
Ejemplo n.º 24
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Pool::Pool(const Poco::Util::AbstractConfiguration & cfg, const std::string & config_name,
     unsigned default_connections_, unsigned max_connections_,
     const char * parent_config_name_)
    : default_connections(default_connections_), max_connections(max_connections_)
{
    server = cfg.getString(config_name + ".host");

    if (parent_config_name_)
    {
        const std::string parent_config_name(parent_config_name_);
        db = cfg.getString(config_name + ".db", cfg.getString(parent_config_name + ".db", ""));
        user = cfg.has(config_name + ".user")
            ? cfg.getString(config_name + ".user")
            : cfg.getString(parent_config_name + ".user");
        password = cfg.has(config_name + ".password")
            ? cfg.getString(config_name + ".password")
            : cfg.getString(parent_config_name + ".password");

        if (!cfg.has(config_name + ".port") && !cfg.has(config_name + ".socket")
            && !cfg.has(parent_config_name + ".port") && !cfg.has(parent_config_name + ".socket"))
            throw Poco::Exception("mysqlxx::Pool configuration: expected port or socket");

        port = cfg.has(config_name + ".port")
            ? cfg.getInt(config_name + ".port")
            : cfg.getInt(parent_config_name + ".port", 0);
        socket = cfg.has(config_name + ".socket")
            ? cfg.getString(config_name + ".socket")
            : cfg.getString(parent_config_name + ".socket", "");
        ssl_ca = cfg.has(config_name + ".ssl_ca")
            ? cfg.getString(config_name + ".ssl_ca")
            : cfg.getString(parent_config_name + ".ssl_ca", "");
        ssl_cert = cfg.has(config_name + ".ssl_cert")
            ? cfg.getString(config_name + ".ssl_cert")
            : cfg.getString(parent_config_name + ".ssl_cert", "");
        ssl_key = cfg.has(config_name + ".ssl_key")
            ? cfg.getString(config_name + ".ssl_key")
            : cfg.getString(parent_config_name + ".ssl_key", "");
    }
    else
    {
        db = cfg.getString(config_name + ".db", "");
        user = cfg.getString(config_name + ".user");
        password = cfg.getString(config_name + ".password");

        if (!cfg.has(config_name + ".port") && !cfg.has(config_name + ".socket"))
            throw Poco::Exception("mysqlxx::Pool configuration: expected port or socket");

        port = cfg.getInt(config_name + ".port", 0);
        socket = cfg.getString(config_name + ".socket", "");
        ssl_ca = cfg.getString(config_name + ".ssl_ca", "");
        ssl_cert = cfg.getString(config_name + ".ssl_cert", "");
        ssl_key = cfg.getString(config_name + ".ssl_key", "");
    }

    connect_timeout = cfg.getInt(config_name + ".connect_timeout",
        cfg.getInt("mysql_connect_timeout",
            MYSQLXX_DEFAULT_TIMEOUT));

    rw_timeout =
        cfg.getInt(config_name + ".rw_timeout",
            cfg.getInt("mysql_rw_timeout",
                MYSQLXX_DEFAULT_RW_TIMEOUT));
}