a9836ad758
Limit message size according to the configuration, to avoid a huge message from allocating all of the server's memory. We also need to limit memory used in aggregate by thrift, but that is left to another patch. Fixes #3878. Message-Id: <20181024081042.13067-1-avi@scylladb.com>
128 lines
3.8 KiB
C++
128 lines
3.8 KiB
C++
/*
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* Copyright (C) 2014 ScyllaDB
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*/
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/*
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* This file is part of Scylla.
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*
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* Scylla is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* Scylla is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with Scylla. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef APPS_SEASTAR_THRIFT_SERVER_HH_
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#define APPS_SEASTAR_THRIFT_SERVER_HH_
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#include "core/reactor.hh"
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#include "core/distributed.hh"
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#include "cql3/query_processor.hh"
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#include "timeout_config.hh"
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#include <seastar/core/gate.hh>
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#include <memory>
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#include <cstdint>
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#include <boost/intrusive/list.hpp>
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class thrift_server;
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class thrift_stats;
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class database;
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namespace cassandra {
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static const sstring thrift_version = "20.1.0";
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class CassandraCobSvIfFactory;
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}
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namespace apache { namespace thrift { namespace protocol {
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class TProtocolFactory;
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class TProtocol;
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}}}
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namespace apache { namespace thrift { namespace async {
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class TAsyncProcessor;
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class TAsyncProcessorFactory;
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}}}
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namespace apache { namespace thrift { namespace transport {
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class TMemoryBuffer;
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}}}
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namespace auth {
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class service;
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}
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struct thrift_server_config {
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::timeout_config timeout_config;
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uint64_t max_request_size;
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};
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class thrift_server {
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class connection : public boost::intrusive::list_base_hook<> {
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struct fake_transport;
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thrift_server& _server;
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connected_socket _fd;
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input_stream<char> _read_buf;
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output_stream<char> _write_buf;
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temporary_buffer<char> _in_tmp;
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boost::shared_ptr<fake_transport> _transport;
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boost::shared_ptr<apache::thrift::transport::TMemoryBuffer> _input;
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boost::shared_ptr<apache::thrift::transport::TMemoryBuffer> _output;
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boost::shared_ptr<apache::thrift::protocol::TProtocol> _in_proto;
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boost::shared_ptr<apache::thrift::protocol::TProtocol> _out_proto;
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boost::shared_ptr<apache::thrift::async::TAsyncProcessor> _processor;
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promise<> _processor_promise;
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public:
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connection(thrift_server& server, connected_socket&& fd, socket_address addr);
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~connection();
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connection(connection&&);
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future<> process();
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future<> read();
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future<> write();
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void shutdown();
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private:
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future<> process_one_request();
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};
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private:
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std::vector<server_socket> _listeners;
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std::unique_ptr<thrift_stats> _stats;
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boost::shared_ptr<::cassandra::CassandraCobSvIfFactory> _handler_factory;
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std::unique_ptr<apache::thrift::protocol::TProtocolFactory> _protocol_factory;
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boost::shared_ptr<apache::thrift::async::TAsyncProcessorFactory> _processor_factory;
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uint64_t _total_connections = 0;
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uint64_t _current_connections = 0;
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uint64_t _requests_served = 0;
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thrift_server_config _config;
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boost::intrusive::list<connection> _connections_list;
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seastar::gate _stop_gate;
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public:
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thrift_server(distributed<database>& db, distributed<cql3::query_processor>& qp, auth::service&, thrift_server_config config);
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~thrift_server();
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future<> listen(ipv4_addr addr, bool keepalive);
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future<> stop();
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void do_accepts(int which, bool keepalive);
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uint64_t total_connections() const;
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uint64_t current_connections() const;
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uint64_t requests_served() const;
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private:
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void maybe_retry_accept(int which, bool keepalive, std::exception_ptr ex);
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};
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#endif /* APPS_SEASTAR_THRIFT_SERVER_HH_ */
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