PolarDB-X 如 何 做 生 态兼 容 好的 MySQL 兼容性可以做到什么程度 胡中泉（舟济） 阿里云数据库解决方案架构师为什么要兼容 MySQL 01 The longer you look back, the farther you can look forward.也从阿里巴巴的“去IOE”运动说起 业务驱动下的分布式技术实践之路 5月17日，支付宝最后一台小型 机下线标志去IOE落下帷幕 反推出了天价账单也谈所谓的“中间件” 中间件只是起点，PolarDB-X 可能是离终点最近的那个 对近十年的探索以及五年的上云 经验进行重新思考，面向未来设 从运维视角实现计算存储一体化 计新架构 产品形态 基于MySQL XA实现分布式事务 基于外部组件进行扩容 支持扩容 分布式事务 一体化尝试 Review 2.0 开源 2016 2017 2018 2019 2020 2021 2021年10月20日，云栖大会宣 it probably is a duck.业务系统 上游 Single Source of Truth 问题背景 数据孤岛怎么办？ 下游MySQL 怎么做 Binlog Maxwell DebeziumPolarDB-X 完全兼容 MySQL Binlog 可行性 • 多节点产生多个增量事件队列 • 不同队列中事件之间的顺序 • 分布式事务完整性 • DDL 引起的多 Schema

balancing services for mod_proxy. The new mod_proxy_ajp module adds support for the Apache JServ Protocol version 1.3 used by Apache Tomcat. Regular Expression Library Updated Version 5.0 of the Perl This is required for some third-party modules on platforms with small default thread stack size. Protocol handling for output filters In the past, every filter has been responsible for ensuring that it it affects them. Filters can now delegate common protocol management to mod_filter, using the ap_register_output_filter_protocol or ap_filter_protocol calls. Monitor hook added Copyright 2014 The Apache

balancing services for mod_proxy. The new mod_proxy_ajp module adds support for the Apache JServ Protocol version 1.3 used by Apache Tomcat. Regular Expression Library Updated Version 5.0 of the Perl This is required for some third-party modules on platforms with small default thread stack size. Protocol handling for output filters In the past, every filter has been responsible for ensuring that it it affects them. Filters can now delegate common protocol management to mod_filter, using the ap_register_output_filter_protocol or ap_filter_protocol calls. Monitor hook added Copyright 2014 The Apache

balancing services for mod_proxy. The new mod_proxy_ajp module adds support for the Apache JServ Protocol version 1.3 used by Apache Tomcat. Regular Expression Library Updated Version 5.0 of the Perl This is required for some third-party modules on platforms with small default thread stack size. Protocol handling for output filters In the past, every filter has been responsible for ensuring that it it affects them. Filters can now delegate common protocol management to mod_filter, using the ap_register_output_filter_protocol or ap_filter_protocol calls. Monitor hook added Copyright 2015 The Apache

balancing services for mod_proxy. The new mod_proxy_ajp module adds support for the Apache JServ Protocol version 1.3 used by Apache Tomcat. Regular Expression Library Updated Version 5.0 of the Perl This is required for some third-party modules on platforms with small default thread stack size. Protocol handling for output filters In the past, every filter has been responsible for ensuring that it it affects them. Filters can now delegate common protocol management to mod_filter, using the ap_register_output_filter_protocol or ap_filter_protocol calls. Monitor hook added Copyright 2014 The Apache

second parameter to CacheEnable only matches forward proxy content if it begins with the correct protocol. In 2.2 and earlier, a parameter of '/' matched all content. mod_ldap: LDAPTrustedClientCert is old format can still be used with the new LegacyDNStringFormat argument to SSLOptions. The SSLv2 protocol is no longer supported. SSLProxyCheckPeerCN and SSLProxyCheckPeerExpire now default to On, causing to use less memory than 2.2.x. New Modules mod_proxy_fcgi FastCGI Protocol backend for mod_proxy mod_proxy_scgi SCGI Protocol backend for mod_proxy mod_proxy_express Provides dynamically configured

. . . . . . . . . . . . . . . . . . . . . . . . . . 264 8.2 httpd - Apache Hypertext Transfer Protocol Server . . . . . . . . . . . . . . . . . . . . . . . . . . 265 8.3 ab - Apache HTTP server benchmarking balancing services for MOD PROXY. The new MOD PROXY AJP module adds support for the Apache JServ Protocol version 1.3 used by Apache Tomcat2. Regular Expression Library Updated Version 5.0 of the Perl This is required for some third-party modules on platforms with small default thread stack size. Protocol handling for output filters In the past, every filter has been responsible for ensuring that it

. . . . . . . . . . . . . . . . . . . . . . . . . . 278 8.2 httpd - Apache Hypertext Transfer Protocol Server . . . . . . . . . . . . . . . . . . . . . . . . . . 279 8.3 ab - Apache HTTP server benchmarking second parameter to CACHEENABLE only matches forward proxy content if it begins with the correct protocol. In 2.2 and earlier, a parameter of ’/’ matched all content. • MOD LDAP: LDAPTRUSTEDCLIENTCERT old format can still be used with the new LegacyDNStringFormat argument to SSLOPTIONS. The SSLv2 protocol is no longer supported. SSLPROXYCHECKPEERCN and SSLPROXYCHECKPEEREXPIRE now default to On, causing

. . . . . . . . . . . . . . . . . . . . . . . . . . 278 8.2 httpd - Apache Hypertext Transfer Protocol Server . . . . . . . . . . . . . . . . . . . . . . . . . . 279 8.3 ab - Apache HTTP server benchmarking second parameter to CACHEENABLE only matches forward proxy content if it begins with the correct protocol. In 2.2 and earlier, a parameter of ’/’ matched all content. • MOD LDAP: LDAPTRUSTEDCLIENTCERT old format can still be used with the new LegacyDNStringFormat argument to SSLOPTIONS. The SSLv2 protocol is no longer supported. SSLPROXYCHECKPEERCN and SSLPROXYCHECKPEEREXPIRE now default to On, causing

balancing services for mod_proxy. The new mod_proxy_ajp module adds support for the Apache JServ Protocol version 1.3 used by Apache Tomcat. Regular Expression Library Updated Version 5.0 of the Perl This is required for some third-party modules on platforms with small default thread stack size. Protocol handling for output filters In the past, every filter has been responsible for ensuring that it it affects them. Filters can now delegate common protocol management to mod_filter, using the ap_register_output_filter_protocol or ap_filter_protocol calls. Monitor hook added Copyright 2017 The Apache