// Licensed to the Apache Software Foundation (ASF) under one

// or more contributor license agreements.  See the NOTICE file

// distributed with this work for additional information

// regarding copyright ownership.  The ASF licenses this file

// to you under the Apache License, Version 2.0 (the

// "License"); you may not use this file except in compliance

// with the License.  You may obtain a copy of the License at

//

//   http://www.apache.org/licenses/LICENSE-2.0

//

// Unless required by applicable law or agreed to in writing,

// software distributed under the License is distributed on an

// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY

// KIND, either express or implied.  See the License for the

// specific language governing permissions and limitations

// under the License.

#include <arrow/flight/client.h>

#include <arrow/flight/sql/client.h>

#include <arrow/scalar.h>

#include <arrow/status.h>

#include <arrow/table.h>

#include <butil/macros.h>

// IWYU pragma: no_include <bthread/errno.h>

#include <errno.h> // IWYU pragma: keep

#include <fcntl.h>

#include <fmt/core.h>

#if !defined(__SANITIZE_ADDRESS__) && !defined(ADDRESS_SANITIZER) && !defined(LEAK_SANITIZER) && \

        !defined(THREAD_SANITIZER) && !defined(USE_JEMALLOC)

#include <gperftools/malloc_extension.h> // IWYU pragma: keep

#endif

#include <libgen.h>

#include <setjmp.h>

#include <signal.h>

#include <stdint.h>

#include <stdio.h>

#include <stdlib.h>

#include <unistd.h>

#include <cstring>

#include <functional>

#include <memory>

#include <ostream>

#include <string>

#include <string_view>

#include <tuple>

#include <vector>

#include "cloud/cloud_backend_service.h"

#include "cloud/config.h"

#include "common/phdr_cache.h"

#include "common/stack_trace.h"

#if defined(__ELF__) && !defined(__FreeBSD__)

#include "common/symbol_index.h"

#endif

#include "runtime/memory/mem_tracker_limiter.h"

#include "storage/tablet/tablet_schema_cache.h"

#include "storage/utils.h"

#include "util/concurrency_stats.h"

#include "util/jni-util.h"

#if defined(LEAK_SANITIZER)

#include <sanitizer/lsan_interface.h>

#endif

#include <curl/curl.h>

#include <thrift/TOutput.h>

#include "agent/heartbeat_server.h"

#include "common/config.h"

#include "common/daemon.h"

#include "common/logging.h"

#include "common/signal_handler.h"

#include "common/status.h"

#include "io/cache/block_file_cache_factory.h"

#include "runtime/exec_env.h"

#include "runtime/user_function_cache.h"

#include "service/arrow_flight/flight_sql_service.h"

#include "service/backend_options.h"

#include "service/backend_service.h"

#include "service/http_service.h"

#include "service/server/be_server_starter_factory.h"

#include "storage/options.h"

#include "storage/storage_engine.h"

#include "udf/python/python_env.h"

#include "util/debug_util.h"

#include "util/disk_info.h"

#include "util/mem_info.h"

#include "util/string_util.h"

#include "util/thrift_rpc_helper.h"

#include "util/thrift_server.h"

#include "util/uid_util.h"

namespace doris {} // namespace doris

static void help(const char*);

extern "C" {

void __lsan_do_leak_check();

int __llvm_profile_write_file();

}

namespace doris {

void signal_handler(int signal) {

    if (signal == SIGINT || signal == SIGTERM) {

        k_doris_exit = true;

    }

}

int install_signal(int signo, void (*handler)(int)) {

    struct sigaction sa;

    memset(&sa, 0, sizeof(struct sigaction));

    sa.sa_handler = handler;

    sigemptyset(&sa.sa_mask);

    auto ret = sigaction(signo, &sa, nullptr);

    if (ret != 0) {

        char buf[64];

        LOG(ERROR) << "install signal failed, signo=" << signo << ", errno=" << errno

                   << ", errmsg=" << strerror_r(errno, buf, sizeof(buf));

    }

    return ret;

}

void init_signals() {

    auto ret = install_signal(SIGINT, signal_handler);

    if (ret < 0) {

        exit(-1);

    }

    ret = install_signal(SIGTERM, signal_handler);

    if (ret < 0) {

        exit(-1);

    }

}

static void thrift_output(const char* x) {

    LOG(WARNING) << "thrift internal message: " << x;

}

} // namespace doris

// These code is referenced from clickhouse

// It is used to check the SIMD instructions

enum class InstructionFail {

    NONE = 0,

    SSE3 = 1,

    SSSE3 = 2,

    SSE4_1 = 3,

    SSE4_2 = 4,

    POPCNT = 5,

    AVX = 6,

    AVX2 = 7,

    AVX512 = 8,

    ARM_NEON = 9

};

auto instruction_fail_to_string(InstructionFail fail) {

    switch (fail) {

#define ret(x) return std::make_tuple(STDERR_FILENO, x, ARRAY_SIZE(x) - 1)

    case InstructionFail::NONE:

        ret("NONE");

    case InstructionFail::SSE3:

        ret("SSE3");

    case InstructionFail::SSSE3:

        ret("SSSE3");

    case InstructionFail::SSE4_1:

        ret("SSE4.1");

    case InstructionFail::SSE4_2:

        ret("SSE4.2");

    case InstructionFail::POPCNT:

        ret("POPCNT");

    case InstructionFail::AVX:

        ret("AVX");

    case InstructionFail::AVX2:

        ret("AVX2");

    case InstructionFail::AVX512:

        ret("AVX512");

    case InstructionFail::ARM_NEON:

        ret("ARM_NEON");

    }

    LOG(ERROR) << "Unrecognized instruction fail value." << std::endl;

    exit(-1);

}

sigjmp_buf jmpbuf;

void sig_ill_check_handler(int, siginfo_t*, void*) {

    siglongjmp(jmpbuf, 1);

}

/// Check if necessary SSE extensions are available by trying to execute some sse instructions.

/// If instruction is unavailable, SIGILL will be sent by kernel.

void check_required_instructions_impl(volatile InstructionFail& fail) {

#if defined(__SSE3__)

    fail = InstructionFail::SSE3;

    __asm__ volatile("addsubpd %%xmm0, %%xmm0" : : : "xmm0");

#endif

#if defined(__SSSE3__)

    fail = InstructionFail::SSSE3;

    __asm__ volatile("pabsw %%xmm0, %%xmm0" : : : "xmm0");

#endif

#if defined(__SSE4_1__)

    fail = InstructionFail::SSE4_1;

    __asm__ volatile("pmaxud %%xmm0, %%xmm0" : : : "xmm0");

#endif

#if defined(__SSE4_2__)

    fail = InstructionFail::SSE4_2;

    __asm__ volatile("pcmpgtq %%xmm0, %%xmm0" : : : "xmm0");

#endif

    /// Defined by -msse4.2

#if defined(__POPCNT__)

    fail = InstructionFail::POPCNT;

    {

        uint64_t a = 0;

        uint64_t b = 0;

        __asm__ volatile("popcnt %1, %0" : "=r"(a) : "r"(b) :);

    }

#endif

#if defined(__AVX__)

    fail = InstructionFail::AVX;

    __asm__ volatile("vaddpd %%ymm0, %%ymm0, %%ymm0" : : : "ymm0");

#endif

#if defined(__AVX2__)

    fail = InstructionFail::AVX2;

    __asm__ volatile("vpabsw %%ymm0, %%ymm0" : : : "ymm0");

#endif

#if defined(__AVX512__)

    fail = InstructionFail::AVX512;

    __asm__ volatile("vpabsw %%zmm0, %%zmm0" : : : "zmm0");

#endif

#if defined(__ARM_NEON__)

    fail = InstructionFail::ARM_NEON;

#ifndef __APPLE__

    __asm__ volatile("vadd.i32  q8, q8, q8" : : : "q8");

#endif

#endif

    fail = InstructionFail::NONE;

}

bool write_retry(int fd, const char* data, size_t size) {

    if (!size) size = strlen(data);

    while (size != 0) {

        ssize_t res = ::write(fd, data, size);

        if ((-1 == res || 0 == res) && errno != EINTR) return false;

        if (res > 0) {

            data += res;

            size -= res;

        }

    }

    return true;

}

/// Macros to avoid using strlen(), since it may fail if SSE is not supported.

#define WRITE_ERROR(data)                                                      \

    do {                                                                       \

        static_assert(__builtin_constant_p(data));                             \

        if (!write_retry(STDERR_FILENO, data, ARRAY_SIZE(data) - 1)) _Exit(1); \

    } while (false)

/// Check SSE and others instructions availability. Calls exit on fail.

/// This function must be called as early as possible, even before main, because static initializers may use unavailable instructions.

void check_required_instructions() {

    struct sigaction sa {};

    struct sigaction sa_old {};

    sa.sa_sigaction = sig_ill_check_handler;

    sa.sa_flags = SA_SIGINFO;

    auto signal = SIGILL;

    if (sigemptyset(&sa.sa_mask) != 0 || sigaddset(&sa.sa_mask, signal) != 0 ||

        sigaction(signal, &sa, &sa_old) != 0) {

        /// You may wonder about strlen.

        /// Typical implementation of strlen is using SSE4.2 or AVX2.

        /// But this is not the case because it's compiler builtin and is executed at compile time.

        WRITE_ERROR("Can not set signal handler\n");

        _Exit(1);

    }

    volatile InstructionFail fail = InstructionFail::NONE;

    if (sigsetjmp(jmpbuf, 1)) {

        WRITE_ERROR("Instruction check fail. The CPU does not support ");

        if (!std::apply(write_retry, instruction_fail_to_string(fail))) _Exit(1);

        WRITE_ERROR(" instruction set.\n");

        WRITE_ERROR(

                "For example, if your CPU does not support AVX2, you need to rebuild the Doris BE "

                "with: USE_AVX2=0 sh build.sh --be");

        _Exit(1);

    }

    check_required_instructions_impl(fail);

    if (sigaction(signal, &sa_old, nullptr)) {

        WRITE_ERROR("Can not set signal handler\n");

        _Exit(1);

    }

}

struct Checker {

    Checker() { check_required_instructions(); }

} checker

#ifndef __APPLE__

        __attribute__((init_priority(101))) /// Run before other static initializers.

#endif

        ;

// A startup failure that happens after ExecEnv::init() has run must terminate the

// process the same way normal shutdown does (see the _exit(0) at the end of main):

// in the default mode we _exit() immediately, skipping global destructors and the

// LeakSanitizer atexit check. Init-time singletons (e.g. the internal workload

// group's task scheduler) intentionally live for the whole process lifetime, so

// running the leak check on this abnormal-exit path reports them as false-positive

// leaks. enable_graceful_exit_check is honored so memleak-check mode still runs LSAN.

[[noreturn]] static void exit_on_startup_failure() {

    google::FlushLogFiles(google::GLOG_INFO);

    if (!doris::config::enable_graceful_exit_check) {

        _exit(1);

    }

    exit(1);

}

int main(int argc, char** argv) {

    doris::signal::InstallFailureSignalHandler();

    // create StackTraceCache Instance, at the beginning, other static destructors may use.

    StackTrace::createCache();

    // extern doris::ErrorCode::ErrorCodeInitializer error_code_init;

    // Some developers will modify status.h and we use a very ticky logic to init error_states

    // and it maybe not inited. So add a check here.

    doris::ErrorCode::error_code_init.check_init();

    // check if print version or help

    if (argc > 1) {

        if (strcmp(argv[1], "--version") == 0 || strcmp(argv[1], "-v") == 0) {

            puts(doris::get_build_version(false).c_str());

            exit(0);

        } else if (strcmp(argv[1], "--help") == 0 || strcmp(argv[1], "-?") == 0) {

            help(basename(argv[0]));

            exit(0);

        }

    }

    if (getenv("DORIS_HOME") == nullptr) {

        fprintf(stderr, "you need set DORIS_HOME environment variable.\n");

        exit(-1);

    }

    if (getenv("PID_DIR") == nullptr) {

        fprintf(stderr, "you need set PID_DIR environment variable.\n");

        exit(-1);

    }

    SCOPED_INIT_THREAD_CONTEXT();

    using doris::Status;

    using std::string;

    // open pid file, obtain file lock and save pid

    string pid_file = string(getenv("PID_DIR")) + "/be.pid";

    int fd = open(pid_file.c_str(), O_RDWR | O_CREAT,

                  S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IROTH);

    if (fd < 0) {

        fprintf(stderr, "fail to create pid file.");

        exit(-1);

    }

    string pid = std::to_string((long)getpid());

    pid += "\n";

    size_t length = write(fd, pid.c_str(), pid.size());

    if (length != pid.size()) {

        fprintf(stderr, "fail to save pid into pid file.");

        exit(-1);

    }

    // descriptor will be leaked when failing to close fd

    if (::close(fd) < 0) {

        fprintf(stderr, "failed to close fd of pidfile.");

        exit(-1);

    }

    // init config.

    // the config in be_custom.conf will overwrite the config in be.conf

    // Must init custom config after init config, separately.

    // Because the path of custom config file is defined in be.conf

    string conffile = string(getenv("DORIS_HOME")) + "/conf/be.conf";

    if (!doris::config::init(conffile.c_str(), true, true, true)) {

        fprintf(stderr, "error read config file. \n");

        return -1;

    }

    string custom_conffile = doris::config::custom_config_dir + "/be_custom.conf";

    if (!doris::config::init(custom_conffile.c_str(), true, false, false)) {

        fprintf(stderr, "error read custom config file. \n");

        return -1;

    }

    // ATTN: Callers that want to override default gflags variables should do so before calling this method

    google::ParseCommandLineFlags(&argc, &argv, true);

    // ATTN: MUST init before LOG

    doris::init_glog("be");

    LOG(INFO) << doris::get_version_string(false);

    doris::init_thrift_logging();

    if (doris::config::enable_fuzzy_mode) {

        Status status = doris::config::set_fuzzy_configs();

        if (!status.ok()) {

            LOG(WARNING) << "Failed to initialize fuzzy config: " << status;

            exit(1);

        }

    }

#if !defined(__SANITIZE_ADDRESS__) && !defined(ADDRESS_SANITIZER) && !defined(LEAK_SANITIZER) && \

        !defined(THREAD_SANITIZER) && !defined(USE_JEMALLOC)

    // Change the total TCMalloc thread cache size if necessary.

    const size_t kDefaultTotalThreadCacheBytes = 1024 * 1024 * 1024;

    if (!MallocExtension::instance()->SetNumericProperty("tcmalloc.max_total_thread_cache_bytes",

                                                         kDefaultTotalThreadCacheBytes)) {

        fprintf(stderr, "Failed to change TCMalloc total thread cache size.\n");

        return -1;

    }

#endif

    std::vector<doris::StorePath> paths;

    auto olap_res = doris::parse_conf_store_paths(doris::config::storage_root_path, &paths);

    if (!olap_res) {

        LOG(ERROR) << "parse config storage path failed, path=" << doris::config::storage_root_path;

        exit(-1);

    }

    std::vector<doris::StorePath> spill_paths;

    if (doris::config::spill_storage_root_path.empty()) {

        doris::config::spill_storage_root_path = doris::config::storage_root_path;

    }

    olap_res = doris::parse_conf_store_paths(doris::config::spill_storage_root_path, &spill_paths);

    if (!olap_res) {

        LOG(ERROR) << "parse config spill storage path failed, path="

                   << doris::config::spill_storage_root_path;

        exit(-1);

    }

    std::set<std::string> broken_paths;

    doris::parse_conf_broken_store_paths(doris::config::broken_storage_path, &broken_paths);

    auto it = paths.begin();

    for (; it != paths.end();) {

        if (broken_paths.count(it->path) > 0) {

            if (doris::config::ignore_broken_disk) {

                LOG(WARNING) << "ignore broken disk, path = " << it->path;

                it = paths.erase(it);

            } else {

                LOG(ERROR) << "a broken disk is found " << it->path;

                exit(-1);

            }

        } else if (!doris::check_datapath_rw(it->path)) {

            if (doris::config::ignore_broken_disk) {

                LOG(WARNING) << "read write test file failed, path=" << it->path;

                it = paths.erase(it);

            } else {

                LOG(ERROR) << "read write test file failed, path=" << it->path;

                // if only one disk and the disk is full, also need exit because rocksdb will open failed

                exit(-1);

            }

        } else {

            ++it;

        }

    }

    if (paths.empty()) {

        LOG(ERROR) << "All disks are broken, exit.";

        exit(-1);

    }

    it = spill_paths.begin();

    for (; it != spill_paths.end();) {

        if (!doris::check_datapath_rw(it->path)) {

            if (doris::config::ignore_broken_disk) {

                LOG(WARNING) << "read write test file failed, path=" << it->path;

                it = spill_paths.erase(it);

            } else {

                LOG(ERROR) << "read write test file failed, path=" << it->path;

                exit(-1);

            }

        } else {

            ++it;

        }

    }

    if (spill_paths.empty()) {

        LOG(ERROR) << "All spill disks are broken, exit.";

        exit(-1);

    }

    // initialize libcurl here to avoid concurrent initialization

    auto curl_ret = curl_global_init(CURL_GLOBAL_ALL);

    if (curl_ret != 0) {

        LOG(ERROR) << "fail to initialize libcurl, curl_ret=" << curl_ret;

        exit(-1);

    }

    // add logger for thrift internal

    apache::thrift::GlobalOutput.setOutputFunction(doris::thrift_output);

    Status status = Status::OK();

    if (doris::config::enable_java_support) {

        // Init jni

        status = doris::Jni::Util::Init();

        if (!status.ok()) {

            LOG(WARNING) << "Failed to initialize JNI: " << status;

            exit(1);

        } else {

            LOG(INFO) << "Doris backend JNI is initialized.";

        }

    }

    if (doris::config::enable_python_udf_support) {

        if (std::string python_udf_root_path =

                    fmt::format("{}/lib/udf/python", std::getenv("DORIS_HOME"));

            !std::filesystem::exists(python_udf_root_path)) {

            std::filesystem::create_directories(python_udf_root_path);

        }

        // Normalize and trim all Python-related config parameters

        std::string python_env_mode =

                std::string(doris::trim(doris::to_lower(doris::config::python_env_mode)));

        std::string python_conda_root_path =

                std::string(doris::trim(doris::config::python_conda_root_path));

        std::string python_venv_root_path =

                std::string(doris::trim(doris::config::python_venv_root_path));

        std::string python_venv_interpreter_paths =

                std::string(doris::trim(doris::config::python_venv_interpreter_paths));

        if (python_env_mode == "conda") {

            if (python_conda_root_path.empty()) {

                LOG(ERROR)

                        << "Python conda root path is empty, please set `python_conda_root_path` "

                           "or set `enable_python_udf_support` to `false`";

                exit(1);

            }

            LOG(INFO) << "Doris backend python version manager is initialized. Python conda "

                         "root path: "

                      << python_conda_root_path;

            status = doris::PythonVersionManager::instance().init(doris::PythonEnvType::CONDA,

                                                                  python_conda_root_path, "");

        } else if (python_env_mode == "venv") {

            if (python_venv_root_path.empty()) {

                LOG(ERROR)

                        << "Python venv root path is empty, please set `python_venv_root_path` or "

                           "set `enable_python_udf_support` to `false`";

                exit(1);

            }

            if (python_venv_interpreter_paths.empty()) {

                LOG(ERROR)

                        << "Python interpreter paths is empty, please set "

                           "`python_venv_interpreter_paths` or set `enable_python_udf_support` to "

                           "`false`";

                exit(1);

            }

            LOG(INFO) << "Doris backend python version manager is initialized. Python venv "

                         "root path: "

                      << python_venv_root_path

                      << ", python interpreter paths: " << python_venv_interpreter_paths;

            status = doris::PythonVersionManager::instance().init(doris::PythonEnvType::VENV,

                                                                  python_venv_root_path,

                                                                  python_venv_interpreter_paths);

        } else {

            status = Status::InvalidArgument(

                    "Python env mode is invalid, should be `conda` or `venv`. If you don't want to "

                    "enable the Python UDF function, please set `enable_python_udf_support` to "

                    "`false`");

        }

        if (!status.ok()) {

            LOG(ERROR) << "Failed to initialize python version manager: " << status;

            exit(1);

        }

        LOG(INFO) << doris::PythonVersionManager::instance().to_string();

    }

    // Doris own signal handler must be register after jvm is init.

    // Or our own sig-handler for SIGINT & SIGTERM will not be chained ...

    // https://www.oracle.com/java/technologies/javase/signals.html

    doris::init_signals();

    // ATTN: MUST init before `ExecEnv`, `StorageEngine` and other daemon services

    //

    //       Daemon ───┬──► StorageEngine ──► ExecEnv ──► Disk/Mem/CpuInfo

    //                 │

    //                 │

    // BackendService ─┘

    doris::CpuInfo::init();

    doris::DiskInfo::init();

    doris::MemInfo::init();

    LOG(INFO) << doris::CpuInfo::debug_string();

    LOG(INFO) << doris::DiskInfo::debug_string();

    LOG(INFO) << doris::MemInfo::debug_string();

    // Doris-patched GNU libunwind reads PHDR metadata from our lock-free snapshot instead of

    // entering glibc dl_iterate_phdr while jemalloc profiling or signal-context unwinding may

    // already be involved in loader-lock-sensitive code. Configure libunwind before daemon threads

    // start so all later heap-profile and stack-trace unwinds use the same lock-safe policy.

    configureLibunwindPHDRCache();

    updatePHDRCache();

    LOG(INFO) << "PHDR cache enabled: " << hasPHDRCache();

#if defined(__ELF__) && !defined(__FreeBSD__)

    auto symbol_index = doris::SymbolIndex::instance();

    LOG(INFO) << "SymbolIndex preloaded: objects=" << symbol_index->objects().size()

              << " symbols=" << symbol_index->symbols().size();

#endif

    if (!doris::BackendOptions::init()) {

        exit(-1);

    }

    // init exec env

    auto* exec_env(doris::ExecEnv::GetInstance());

    status = doris::ExecEnv::init(doris::ExecEnv::GetInstance(), paths, spill_paths, broken_paths);

    if (status != Status::OK()) {

        std::cerr << "failed to init doris storage engine, res=" << status;

        exit_on_startup_failure();

    }

    // Start concurrency stats manager

    doris::ConcurrencyStatsManager::instance().start();

    // begin to start services

    doris::ThriftRpcHelper::setup(exec_env);

    // 1. thrift server with be_port

    std::shared_ptr<doris::BaseBackendService> service;

    std::function<void(Status&, std::string_view)> stop_work_if_error = [&](Status& status,

                                                                            std::string_view msg) {

        if (!status.ok()) {

            std::cerr << msg << '\n';

            service->stop_works();

            exit_on_startup_failure();

        }

    };

    if (doris::config::is_cloud_mode()) {

        service = std::make_shared<doris::CloudBackendService>(

                exec_env->storage_engine().to_cloud(), exec_env);

    } else {

        service = std::make_shared<doris::BackendService>(exec_env->storage_engine().to_local(),

                                                          exec_env);

    }

    std::unique_ptr<doris::server::IServerStarter> backend_thrift_starter;

    EXIT_IF_ERROR(doris::server::create_backend_thrift_starter(exec_env, doris::config::be_port,

                                                               service, &backend_thrift_starter));

    status = backend_thrift_starter->start();

    stop_work_if_error(status, "Doris BE server did not start correctly, exiting");

    // 2. brpc service

    std::unique_ptr<doris::server::IServerStarter> brpc_starter;

    EXIT_IF_ERROR(doris::server::create_brpc_starter(

            exec_env, doris::config::brpc_port, doris::config::brpc_num_threads, &brpc_starter));

    status = brpc_starter->start();

    stop_work_if_error(status, "BRPC service did not start correctly, exiting");

    // 3. http service

    std::unique_ptr<doris::server::IServerStarter> http_starter;

    EXIT_IF_ERROR(doris::server::create_http_starter(exec_env, doris::config::webserver_port,

                                                     doris::config::webserver_num_workers,

                                                     &http_starter));

    status = http_starter->start();

    stop_work_if_error(status, "Doris Be http service did not start correctly, exiting");

    // 4. heart beat server

    doris::ClusterInfo* cluster_info = exec_env->cluster_info();

    std::unique_ptr<doris::server::IServerStarter> heartbeat_thrift_starter;

    status = doris::server::create_heartbeat_thrift_starter(

            exec_env, doris::config::heartbeat_service_port,

            doris::config::heartbeat_service_thread_count, cluster_info, &heartbeat_thrift_starter);

    stop_work_if_error(status, "Heartbeat services did not start correctly, exiting");

    status = heartbeat_thrift_starter->start();

    stop_work_if_error(status, "Doris BE HeartBeat Service did not start correctly, exiting: " +

                                       status.to_string());

    // 5. arrow flight service

    std::unique_ptr<doris::server::IServerStarter> flight_starter;

    EXIT_IF_ERROR(doris::server::create_flight_starter(doris::config::arrow_flight_sql_port,

                                                       &flight_starter));

    status = flight_starter->start();

    stop_work_if_error(

            status, "Arrow Flight Service did not start correctly, exiting, " + status.to_string());

    // 6. start daemon thread to do clean or gc jobs

    doris::Daemon daemon;

    daemon.start();

    exec_env->storage_engine().notify_listeners();

    doris::k_is_server_ready = true;

    while (!doris::k_doris_exit) {

#if defined(LEAK_SANITIZER)

        __lsan_do_leak_check();

#endif

        sleep(3);

    }

    doris::k_is_server_ready = false;

    LOG(INFO) << "Doris main exiting.";

#if defined(LLVM_PROFILE)

    __llvm_profile_write_file();

    LOG(INFO) << "Flush profile file.";

#endif

    // For graceful shutdown, need to wait for all running queries to stop

    exec_env->wait_for_all_tasks_done();

    if (!doris::config::enable_graceful_exit_check) {

        // If not in memleak check mode, no need to wait all objects de-constructed normally, just exit.

        // It will make sure that graceful shutdown can be done definitely.

        LOG(INFO) << "Doris main exited.";

        google::FlushLogFiles(google::GLOG_INFO);

        _exit(0); // Do not call exit(0), it will wait for all objects de-constructed normally

        return 0;

    }

    daemon.stop();

    flight_starter->stop();

    flight_starter->join();

    LOG(INFO) << "Flight server stopped.";

    heartbeat_thrift_starter->stop();

    heartbeat_thrift_starter->join();

    LOG(INFO) << "Heartbeat server stopped";

    // TODO(zhiqiang): http_service

    http_starter->stop();

    http_starter->join();

    LOG(INFO) << "Http service stopped";

    backend_thrift_starter->stop();

    backend_thrift_starter->join();

    LOG(INFO) << "Be server stopped";

    brpc_starter->stop();

    brpc_starter->join();

    LOG(INFO) << "Brpc service stopped";

    service.reset();

    LOG(INFO) << "Backend Service stopped";

    exec_env->destroy();

    LOG(INFO) << "All service stopped, doris main exited.";

    return 0;

}

static void help(const char* progname) {

    printf("%s is the Doris backend server.\n\n", progname);

    printf("Usage:\n  %s [OPTION]...\n\n", progname);

    printf("Options:\n");

    printf("  -v, --version      output version information, then exit\n");

    printf("  -?, --help         show this help, then exit\n");

}