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Fix data-race during server shutdown the context

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Found with 01737_clickhouse_server_wait_server_pool:

==================
WARNING: ThreadSanitizer: data race (pid=13248)
  Write of size 1 at 0x7b9000003a38 by main thread:
    0 std::__1::__optional_destruct_base<DB::SystemLogs, false>::reset() obj-x86_64-linux-gnu/../contrib/libcxx/include/optional:246:24 (clickhouse-tsan+0x11e3043e)
    1 DB::ContextShared::shutdown() obj-x86_64-linux-gnu/../src/Interpreters/Context.cpp:441:21 (clickhouse-tsan+0x11e3043e)
    2 DB::Context::shutdown() obj-x86_64-linux-gnu/../src/Interpreters/Context.cpp:2249:13 (clickhouse-tsan+0x11e28c17)
    3 DB::Server::main(std::__1::vector<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >, std::__1::allocator<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > > > const&)::$_5::operator()() const obj-x86_64-linux-gnu/../programs/server/Server.cpp:892:5 (clickhouse-tsan+0x8ab1a32)
    4 ext::basic_scope_guard<DB::Server::main(std::__1::vector<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >, std::__1::allocator<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > > > const&)::$_5>::invoke() obj-x86_64-linux-gnu/../base/common/../ext/scope_guard.h:97:9 (clickhouse-tsan+0x8ab1a32)
    5 ext::basic_scope_guard<DB::Server::main(std::__1::vector<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >, std::__1::allocator<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > > > const&)::$_5>::~basic_scope_guard() obj-x86_64-linux-gnu/../base/common/../ext/scope_guard.h:47:28 (clickhouse-tsan+0x8ab1a32)
    6 DB::Server::main(std::__1::vector<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >, std::__1::allocator<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > > > const&) obj-x86_64-linux-gnu/../programs/server/Server.cpp:1395:1 (clickhouse-tsan+0x8aacb39)
    7 Poco::Util::Application::run() obj-x86_64-linux-gnu/../contrib/poco/Util/src/Application.cpp:334:8 (clickhouse-tsan+0x15b3446b)
    8 DB::Server::run() obj-x86_64-linux-gnu/../programs/server/Server.cpp:342:25 (clickhouse-tsan+0x8aa04be)
    9 Poco::Util::ServerApplication::run(int, char**) obj-x86_64-linux-gnu/../contrib/poco/Util/src/ServerApplication.cpp:611:9 (clickhouse-tsan+0x15b50883)
    10 mainEntryClickHouseServer(int, char**) obj-x86_64-linux-gnu/../programs/server/Server.cpp:134:20 (clickhouse-tsan+0x8a9f08e)
    11 main obj-x86_64-linux-gnu/../programs/main.cpp:368:12 (clickhouse-tsan+0x8a9d5f9)

  Previous read of size 1 at 0x7b9000003a38 by thread T2 (mutexes: write M2504):
    0 std::__1::__optional_storage_base<DB::SystemLogs, false>::has_value() const obj-x86_64-linux-gnu/../contrib/libcxx/include/optional:295:22 (clickhouse-tsan+0x11e25348)
    1 std::__1::optional<DB::SystemLogs>::operator bool() const obj-x86_64-linux-gnu/../contrib/libcxx/include/optional:938:64 (clickhouse-tsan+0x11e25348)
    2 DB::Context::getQueryLog() obj-x86_64-linux-gnu/../src/Interpreters/Context.cpp:1875:10 (clickhouse-tsan+0x11e25348)
    3 DB::executeQueryImpl(char const*, char const*, DB::Context&, bool, DB::QueryProcessingStage::Enum, bool, DB::ReadBuffer*) obj-x86_64-linux-gnu/../src/Interpreters/executeQuery.cpp:657:50 (clickhouse-tsan+0x12653751)
    4 DB::executeQuery(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > const&, DB::Context&, bool, DB::QueryProcessingStage::Enum, bool) obj-x86_64-linux-gnu/../src/Interpreters/executeQuery.cpp:904:30 (clickhouse-tsan+0x12651308)
    5 DB::TCPHandler::runImpl() obj-x86_64-linux-gnu/../src/Server/TCPHandler.cpp:289:24 (clickhouse-tsan+0x12f04b45)
    6 DB::TCPHandler::run() obj-x86_64-linux-gnu/../src/Server/TCPHandler.cpp:1500:9 (clickhouse-tsan+0x12f13907)
    7 Poco::Net::TCPServerConnection::start() obj-x86_64-linux-gnu/../contrib/poco/Net/src/TCPServerConnection.cpp:43:3 (clickhouse-tsan+0x15b1f722)
    8 Poco::Net::TCPServerDispatcher::run() obj-x86_64-linux-gnu/../contrib/poco/Net/src/TCPServerDispatcher.cpp:113:19 (clickhouse-tsan+0x15b1fe4e)
    9 Poco::PooledThread::run() obj-x86_64-linux-gnu/../contrib/poco/Foundation/src/ThreadPool.cpp:199:14 (clickhouse-tsan+0x15c86fe1)
    10 Poco::(anonymous namespace)::RunnableHolder::run() obj-x86_64-linux-gnu/../contrib/poco/Foundation/src/Thread.cpp:55:11 (clickhouse-tsan+0x15c8557f)
    11 Poco::ThreadImpl::runnableEntry(void*) obj-x86_64-linux-gnu/../contrib/poco/Foundation/src/Thread_POSIX.cpp:345:27 (clickhouse-tsan+0x15c83d87)

  Location is heap block of size 7296 at 0x7b9000002000 allocated by main thread:
    0 operator new(unsigned long) <null> (clickhouse-tsan+0x8a9aae7)
    1 std::__1::__unique_if<DB::ContextShared>::__unique_single std::__1::make_unique<DB::ContextShared>() obj-x86_64-linux-gnu/../contrib/libcxx/include/memory:2068:28 (clickhouse-tsan+0x11e15c2c)
    2 DB::Context::createShared() obj-x86_64-linux-gnu/../src/Interpreters/Context.cpp:503:32 (clickhouse-tsan+0x11e15c2c)
    3 DB::Server::main(std::__1::vector<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >, std::__1::allocator<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > > > const&) obj-x86_64-linux-gnu/../programs/server/Server.cpp:426:27 (clickhouse-tsan+0x8aa19ee)
    4 Poco::Util::Application::run() obj-x86_64-linux-gnu/../contrib/poco/Util/src/Application.cpp:334:8 (clickhouse-tsan+0x15b3446b)
    5 DB::Server::run() obj-x86_64-linux-gnu/../programs/server/Server.cpp:342:25 (clickhouse-tsan+0x8aa04be)
    6 Poco::Util::ServerApplication::run(int, char**) obj-x86_64-linux-gnu/../contrib/poco/Util/src/ServerApplication.cpp:611:9 (clickhouse-tsan+0x15b50883)
    7 mainEntryClickHouseServer(int, char**) obj-x86_64-linux-gnu/../programs/server/Server.cpp:134:20 (clickhouse-tsan+0x8a9f08e)
    8 main obj-x86_64-linux-gnu/../programs/main.cpp:368:12 (clickhouse-tsan+0x8a9d5f9)

  Mutex M2504 (0x7b9000002008) created at:
    0 pthread_mutex_init <null> (clickhouse-tsan+0x8a0d37d)
    1 std::__1::__libcpp_recursive_mutex_init(pthread_mutex_t*) obj-x86_64-linux-gnu/../contrib/libcxx/include/__threading_support:370:10 (clickhouse-tsan+0x17cc4d93)
    2 std::__1::recursive_mutex::recursive_mutex() obj-x86_64-linux-gnu/../contrib/libcxx/src/mutex.cpp:56:14 (clickhouse-tsan+0x17cc4d93)
    3 DB::ContextShared::ContextShared() obj-x86_64-linux-gnu/../src/Interpreters/Context.cpp:394:5 (clickhouse-tsan+0x11e40bc3)
    4 std::__1::__unique_if<DB::ContextShared>::__unique_single std::__1::make_unique<DB::ContextShared>() obj-x86_64-linux-gnu/../contrib/libcxx/include/memory:2068:32 (clickhouse-tsan+0x11e15c37)
    5 DB::Context::createShared() obj-x86_64-linux-gnu/../src/Interpreters/Context.cpp:503:32 (clickhouse-tsan+0x11e15c37)
    6 DB::Server::main(std::__1::vector<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >, std::__1::allocator<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > > > const&) obj-x86_64-linux-gnu/../programs/server/Server.cpp:426:27 (clickhouse-tsan+0x8aa19ee)
    7 Poco::Util::Application::run() obj-x86_64-linux-gnu/../contrib/poco/Util/src/Application.cpp:334:8 (clickhouse-tsan+0x15b3446b)
    8 DB::Server::run() obj-x86_64-linux-gnu/../programs/server/Server.cpp:342:25 (clickhouse-tsan+0x8aa04be)
    9 Poco::Util::ServerApplication::run(int, char**) obj-x86_64-linux-gnu/../contrib/poco/Util/src/ServerApplication.cpp:611:9 (clickhouse-tsan+0x15b50883)
    10 mainEntryClickHouseServer(int, char**) obj-x86_64-linux-gnu/../programs/server/Server.cpp:134:20 (clickhouse-tsan+0x8a9f08e)
    11 main obj-x86_64-linux-gnu/../programs/main.cpp:368:12 (clickhouse-tsan+0x8a9d5f9)

  Thread T2 'TCPHandler' (tid=13643, running) created by main thread at:
    0 pthread_create <null> (clickhouse-tsan+0x8a0bf0b)
    1 Poco::ThreadImpl::startImpl(Poco::SharedPtr<Poco::Runnable, Poco::ReferenceCounter, Poco::ReleasePolicy<Poco::Runnable> >) obj-x86_64-linux-gnu/../contrib/poco/Foundation/src/Thread_POSIX.cpp:202:6 (clickhouse-tsan+0x15c83827)
    2 Poco::Thread::start(Poco::Runnable&) obj-x86_64-linux-gnu/../contrib/poco/Foundation/src/Thread.cpp:128:2 (clickhouse-tsan+0x15c84f6c)
    3 Poco::PooledThread::start() obj-x86_64-linux-gnu/../contrib/poco/Foundation/src/ThreadPool.cpp:85:10 (clickhouse-tsan+0x15c873e2)
    4 Poco::ThreadPool::ThreadPool(int, int, int, int) obj-x86_64-linux-gnu/../contrib/poco/Foundation/src/ThreadPool.cpp:252:12 (clickhouse-tsan+0x15c873e2)
    5 DB::Server::main(std::__1::vector<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >, std::__1::allocator<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > > > const&) obj-x86_64-linux-gnu/../programs/server/Server.cpp:843:22 (clickhouse-tsan+0x8aa8e5f)
    6 Poco::Util::Application::run() obj-x86_64-linux-gnu/../contrib/poco/Util/src/Application.cpp:334:8 (clickhouse-tsan+0x15b3446b)
    7 DB::Server::run() obj-x86_64-linux-gnu/../programs/server/Server.cpp:342:25 (clickhouse-tsan+0x8aa04be)
    8 Poco::Util::ServerApplication::run(int, char**) obj-x86_64-linux-gnu/../contrib/poco/Util/src/ServerApplication.cpp:611:9 (clickhouse-tsan+0x15b50883)
    9 mainEntryClickHouseServer(int, char**) obj-x86_64-linux-gnu/../programs/server/Server.cpp:134:20 (clickhouse-tsan+0x8a9f08e)
    10 main obj-x86_64-linux-gnu/../programs/main.cpp:368:12 (clickhouse-tsan+0x8a9d5f9)

SUMMARY: ThreadSanitizer: data race obj-x86_64-linux-gnu/../contrib/libcxx/include/optional:246:24 in std::__1::__optional_destruct_base<DB::SystemLogs, false>::reset()

v2: fix deadlock by calling SystemLogs::shutdown w/o Context lock
This commit is contained in:
Azat Khuzhin 2021-03-01 08:10:13 +03:00
parent 8cb0bb4ca8
commit 3056d2c5d1
1 changed files with 2 additions and 0 deletions
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2
src/Interpreters/Context.cpp
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@ -442,6 +442,8 @@ struct ContextSharedPart
DatabaseCatalog::shutdown();
auto lock = std::lock_guard(mutex);
/// Preemptive destruction is important, because these objects may have a refcount to ContextShared (cyclic reference).
/// TODO: Get rid of this.