## 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 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 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。 • TCMU的用户态代码会受到框架约束，不够灵活。 ## iSCSI target 服务器 • TGT(STGT) • 比较久的历史，原来叫STGT，后来改成TGT • 纯用户态，不与内核绑定 - 支持复杂的存储系统，例如Ceph RBD, sheepdog, Glfs • 纯C代码，外加一些脚本

## +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

## 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 goroutine使用channel交换消息 - 异步场景，直接往指定channel发送数据 - 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 ![Image](/uploads/documents/9/5/9/2/9592b5423da340d22f51b119b66b5098/p10_1

# 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

# 06.HTTP & AJAX # 19 décembre 2023 ## Développement web il3 HTTP & AJAX HE-Arc (DGR) 2022 ## HyperText Transfer Protocol • Protocole application : invention www en 1990 (v0.9) - Connexion Connexion, GET, réponse, fermeture • HTTP 1.0 (1996) - Entêtes de requête (Host, Referer, User-Agent, ...) et réponse (Content-Type, Set-Cookie, Location, ...) • HTTP 1.1 (1997) - Nouveaux entêtes (Keep-alive obligatoire • HTTP 2.0 $ ^{1} $ (2015) - Binaire, multiplexage connexions, compression entêtes, push, ... – Supporté par presque tous $ ^{2} $ les navigateurs, une majorité de serveurs • HTTP 3.0 $ ^{3}