Function sanityChecks

programs/server/Server.cpp:807–1012

#endif

void sanityChecks(Server & server, const ServerSettings & server_settings)
{
    std::string data_path = getCanonicalPath(String(server_settings[ServerSetting::path]), server.getOriginalWorkingDirectory());
    std::string logs_path = server_settings[ServerSetting::logger_log];

    if (server.logger().is(Poco::Message::PRIO_TEST))
        server.context()->addOrUpdateWarningMessage(
            Context::WarningType::SERVER_LOGGING_LEVEL_TEST,
            PreformattedMessage::create(
                "Server logging level is set to 'test' and performance is degraded. This cannot be used in production."));
#if defined(OS_LINUX)
    try
    {
        const std::unordered_set<std::string> fast_clock_sources = {
            // ARM clock
            "arch_sys_counter",
            // KVM guest clock
            "kvm-clock",
            // X86 clock
            "tsc",
        };
        const char * filename = "/sys/devices/system/clocksource/clocksource0/current_clocksource";
        if (!fast_clock_sources.contains(readLine(filename)))
            server.context()->addOrUpdateWarningMessage(
                Context::WarningType::LINUX_FAST_CLOCK_SOURCE_NOT_USED,
                PreformattedMessage::create("Linux is not using a fast clock source. Performance can be degraded. Check {}", filename));
    }
    catch (const std::exception &) // NOLINT(bugprone-empty-catch)
    {
    }

    try
    {
        const char * filename = "/proc/sys/vm/overcommit_memory";
        if (readNumber(filename) == 2)
            server.context()->addOrUpdateWarningMessage(
                Context::WarningType::LINUX_MEMORY_OVERCOMMIT_DISABLED,
                PreformattedMessage::create("Linux memory overcommit is disabled. Check {}", String(filename)));
    }
    catch (const std::exception &) // NOLINT(bugprone-empty-catch)
    {
    }

    try
    {
        const char * filename = "/sys/kernel/mm/transparent_hugepage/enabled";
        if (readLine(filename).find("[always]") != std::string::npos)
            server.context()->addOrUpdateWarningMessage(
                Context::WarningType::LINUX_TRANSPARENT_HUGEPAGES_SET_TO_ALWAYS,
                PreformattedMessage::create("Linux transparent hugepages are set to \"always\". Check {}", String(filename)));
    }
    catch (const std::exception &) // NOLINT(bugprone-empty-catch)
    {
    }

    try
    {
        const char * filename = "/proc/sys/kernel/pid_max";