
```
2021.05.20 12:16:07.296968 [ 460386 ] {} <Error> ServerErrorHandler: Poco::Exception. Code: 1000, e.code() = 0, e.displayText() = Not found: http_port, Stack trace (when copying this message, always include the lines below):

0. /build/obj-x86_64-linux-gnu/../contrib/poco/Foundation/src/Exception.cpp:27: Poco::NotFoundException::NotFoundException(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > const&, int) @ 0x18cdde80 in /usr/lib/debug/usr/bin/clickhouse
1. /build/obj-x86_64-linux-gnu/../contrib/poco/Util/src/AbstractConfiguration.cpp:77: Poco::Util::AbstractConfiguration::getString(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > const&) const (.cold) @ 0x18c032da in /usr/lib/debug/usr/bin/clickhouse
2. /build/obj-x86_64-linux-gnu/../src/Server/TCPHandler.cpp:731: DB::TCPHandler::receiveHello() @ 0x163a0957 in /usr/lib/debug/usr/bin/clickhouse
3. /build/obj-x86_64-linux-gnu/../contrib/libcxx/include/string:1426: DB::TCPHandler::runImpl() @ 0x163a5a49 in /usr/lib/debug/usr/bin/clickhouse
4. /build/obj-x86_64-linux-gnu/../src/Server/TCPHandler.cpp:1219: DB::TCPHandler::run() @ 0x163a7070 in /usr/lib/debug/usr/bin/clickhouse
5. /build/obj-x86_64-linux-gnu/../contrib/poco/Net/src/TCPServerConnection.cpp:57: Poco::Net::TCPServerConnection::start() @ 0x18bf7e5b in /usr/lib/debug/usr/bin/clickhouse
6. /build/obj-x86_64-linux-gnu/../contrib/libcxx/include/atomic:856: Poco::Net::TCPServerDispatcher::run() @ 0x18bf83e8 in /usr/lib/debug/usr/bin/clickhouse
7. /build/obj-x86_64-linux-gnu/../contrib/poco/Foundation/include/Poco/Mutex_POSIX.h:59: Poco::PooledThread::run() @ 0x18d76ed6 in /usr/lib/debug/usr/bin/clickhouse
8. /build/obj-x86_64-linux-gnu/../contrib/poco/Foundation/include/Poco/AutoPtr.h:223: Poco::ThreadImpl::runnableEntry(void*) @ 0x18d722d0 in /usr/lib/debug/usr/bin/clickhouse
9. start_thread @ 0x76db in /lib/x86_64-linux-gnu/libpthread-2.27.so
10. clone @ 0x121a3f in /lib/x86_64-linux-gnu/libc-2.27.so
 (version 20.8.18.32 (official build))
```
https://github.com/ClickHouse/ClickHouse/blob/d9c9422a449cddf77e8a693828bf4da95f03ddb2/src/Server/TCPHandler.cpp#L927
#include <Storages/MergeTree/MergeTreeDataPartUUID.h>
#include <Storages/StorageS3Cluster.h>
#include <Core/ExternalTable.h>
#include <Storages/ColumnDefault.h>
#include <DataTypes/DataTypeLowCardinality.h>
#include <Compression/CompressionFactory.h>
#include <common/logger_useful.h>
#include <Processors/Executors/PullingAsyncPipelineExecutor.h>
#include "Core/Protocol.h"
#include "TCPHandler.h"
#if !defined(ARCADIA_BUILD)
#    include <Common/config_version.h>
#endif
namespace DB
{
namespace ErrorCodes
{
    extern const int LOGICAL_ERROR;
    extern const int ATTEMPT_TO_READ_AFTER_EOF;
    extern const int CLIENT_HAS_CONNECTED_TO_WRONG_PORT;
    extern const int UNKNOWN_DATABASE;
    extern const int UNKNOWN_EXCEPTION;
    extern const int UNKNOWN_PACKET_FROM_CLIENT;
    extern const int POCO_EXCEPTION;
    extern const int SOCKET_TIMEOUT;
    extern const int UNEXPECTED_PACKET_FROM_CLIENT;
    extern const int SUPPORT_IS_DISABLED;
    extern const int UNKNOWN_PROTOCOL;
}
TCPHandler::TCPHandler(IServer & server_, const Poco::Net::StreamSocket & socket_, bool parse_proxy_protocol_, std::string server_display_name_)