## TGT 服务器的优化 ## 块设备协议 • NBD • Linux专有块设备协议 • iSCSI • 广泛支持的外部设备协议（块，磁带等） ## Curve云原生存储支持块设备 • 通过NBD，只支持Linux - 通过SDK API，目前只支持Linux - PFS · 扩大使用范围 - 通过iSCSI支持更多系统，例如Windows, 类UNIX系统等，使用两项基础技术 可靠性、稳定性方面有自己的特色，使用raft副本一致性和copyset概念可以自动修复损坏的副本，并且可扩容。无论在可靠性、稳定性还是性价比方面都很有优势，使用廉价硬件搭建。 ## iSCSI软件 • Client端: iscsi initiator，系统自带 • Linux open-iscsi • Windows iSCSI 发起者 • 服务器端 • 必须是CurveBS原生支持的平台，因 必须是CurveBS原生支持的平台，因为需要curve原生接口，目前是Linux ## iSCSI target服务器 • LINUX LILO • 一般用于输出内核本地块设备 • TCMU • 作为LILO支持用户态的接口 • 如何评价LILO • 输出内核块设备I/O效率高 - 不利于把复杂的存储协议代码搬进内核，例如(curve, brpc, c++, protobuf 等) • TCMU多了一层转接，配置过程复杂，业界踩的坑不够多。

## +24 ## Creating a Sender/Receiver HTTP Server ## DIETMAR KÜHL 20 24 September 15 - 20 ## Objective • Create a basic HTTP server. • Allow a single-threaded server handling multiple clients. • std::execution (sender/receiver): http://wg21.link/p2300 • https://github.com/NVIDIA/stdexec.git • https://github.com/beman-project/execution26 • Sender/receiver networking: http://wg21.link/p2762 • Implementation: Implementation: https://github.com/beman-project/net29 •Async scope: http://wg21.link/p3149 TechAtBloomberg.com

9 5 Installation 11 6 Documentation 13 6.1 User's guide 13 6.2 Web framework 39 6.3 HTTP servers and clients 79 6.4 Asynchronous networking 97 6.5 Coroutines and concurrency 113 6.6 implementations of HTTP (HTTPServer and AsyncHTTPClient). - An asynchronous networking library including the classes IOLoop and IOStream, which serve as the building blocks for the HTTP components and can when available. The Tornado web framework and HTTP server together offer a full-stack alternative to WSGI. While it is possible to use the Tornado HTTP server as a container for other WSGI frameworks

## 用Go语言实现推送服务器 陈叶皓 chen.yh@ctrip.com ## 议程 • 推送服务器介绍 • Golang特点 • 推送服务架构 • 部分代码 • 上线效果 ## 议程 • 推送服务器介绍 • 推送服务架构 • 部分代码 • 上线效果 ## 什么是推送服务器 • 推送业务信息到手机端 • 始终保持连接 ## 推送服务器要求 · 高并发 • 可靠性 • 高性能 • 支持水平扩展 • 无单点故障 ## Go语言特性 • 静态的、编译的 • 自动内存回收 • 命令式编程 • 函数可以作为值 • 面向并发 • 内置RPC支持 ## 推送服务器要求的应对 - 高并发 - goroutine - 可靠性 - 使用Redis暂存消息 - 高性能 - 静态编译语言 - 支持水平扩展 - 使用RPC组成集群 同步场景，往channel发送的数据中，包含一个获取返回值的channel ## 议程 • 推送服务器介绍 • 推送服务架构 • 部分代码 • 上线效果 逻辑架构  ## 去中心化设计 • 客户端随机连接 • Redis集中存储地址表 • 信息发送2跳到达 ##

# Apache HTTP Server Documentation Version 2.0  Apache Software Foundation February 3, 2014 ## About The PDF Documentation compliance with the License. You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0 This version of the Apache HTTP Server Documentation is converted from XML source files to L $ version of the documentation on the Apache HTTP Server website at http://httpd.apache.org/docs/2.0/ The Apache HTTP Server Documentation is maintained by the Apache HTTP Server Documentation Project. More information

# Apache HTTP Server Documentation Version 2.2  Apache Software Foundation January 15, 2017 ## About The PDF Documentation compliance with the License. You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0 This version of the Apache HTTP Server Documentation is converted from XML source files to L $ version of the documentation on the Apache HTTP Server website at http://httpd.apache.org/docs/2.2/ The Apache HTTP Server Documentation is maintained by the Apache HTTP Server Documentation Project. More information

Apache HTTP Server Documentation Version 2.4 Apache Software Foundation October 3, 2017 ## About The PDF Documentation Licensed to the Apache Software Foundation (ASF) under one or more contributor compliance with the License. You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0 This version of the Apache HTTP Server Documentation is converted from XML source files to L $ version of the documentation on the Apache HTTP Server website at http://httpd.apache.org/docs/2.4/ The Apache HTTP Server Documentation is maintained by the Apache HTTP Server Documentation Project. More information

# Apache HTTP Server Documentation Version 2.4  Apache Software Foundation March 13, 2014 ## About The PDF Documentation compliance with the License. You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0 This version of the Apache HTTP Server Documentation is converted from XML source files to L $ version of the documentation on the Apache HTTP Server website at http://httpd.apache.org/docs/2.4/ The Apache HTTP Server Documentation is maintained by the Apache HTTP Server Documentation Project. More information

Apache HTTP Server Documentation Version 2.4 Apache Software Foundation March 21, 2018 ## About The PDF Documentation Licensed to the Apache Software Foundation (ASF) under one or more contributor license compliance with the License. You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0 This version of the Apache HTTP Server Documentation is converted from XML source files to L $ version of the documentation on the Apache HTTP Server website at http://httpd.apache.org/docs/2.4/ The Apache HTTP Server Documentation is maintained by the Apache HTTP Server Documentation Project. More information

# Apache HTTP Server Documentation Version 2.4  Apache Software Foundation February 3, 2014 ## About The PDF Documentation compliance with the License. You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0 This version of the Apache HTTP Server Documentation is converted from XML source files to L $ version of the documentation on the Apache HTTP Server website at http://httpd.apache.org/docs/2.4/ The Apache HTTP Server Documentation is maintained by the Apache HTTP Server Documentation Project. More information