RAC和Greenplum数据仓库 ⚫ 有幸参与了Oracle RAC到 Greenplum再到Hadoop以及最终到 ODPS的架构演进工作。 ⚫ 2012年起，转至阿里巴巴大数据团队，负责Hbase/OTS业务支 撑，期间多次负责阿里大数据双11架构和稳定性工作 ⚫ 2018年，在阿里云数据库负责OLAP产品管理团队。 1. Greenplum发展史 @Alibaba 2. AnalyticDB 机器学习算法库，实现数据智能探索；高性 能向量检索算法，支持视频/图像检索 以图搜图 AnalyticDB for PostgreSQL 产品架构 协调节点 OSS 分布式云存储服务 SQL Client/BI Tools 协调节点（Master Node） • 接收请求，制定分布式执行计划 计算组（Compute Groups） • 全并行分析计算 • 数据双副本存储 • 定期自动备份 易用，结构化和非结构化数据关联查询。 • 准确性高，阿里自研向量检索算法。 Web APP AnalyticDB for PostgreSQL AnalyticDB for PostgreSQL Client 特征提取服 务 5.检索分析 1.注册特征提取服务 3.写入url 4.生成特征 2.写入非 结构化数 OSS 音频 图片 文本 向量 ①GPU的计算性能加速 ②支持Greenplum

Vacuuming ............................................................................ 667 20.11. Client Connection Defaults ...................................................................... 669 20 ........................................................................................ 690 21. Client Authentication ................................................................................. Coverage Examination ....................................................................... 883 IV. Client Interfaces .....................................................................................

Automatic Vacuuming ....................................................................... 634 20.11. Client Connection Defaults ................................................................. 636 20.12. Options ................................................................................... 656 21. Client Authentication ................................................................................. Test Coverage Examination ................................................................. 841 IV. Client Interfaces .....................................................................................

Failures ..................................................................................354 17.3.2. Client Connection Problems ...........................................................................355 ......................................................................................396 18.10. Client Connection Defaults ............................................................................ Versions .....................................................................404 18.12.2. Platform and Client Compatibility................................................................406 18.13. Preset Options

Start-up Failures ...........................................................................334 17.3.2. Client Connection Problems ....................................................................334 17.4 ......................................................................................374 18.10. Client Connection Defaults ............................................................................ Versions ..............................................................381 18.12.2. Platform and Client Compatibility.........................................................383 18.13. Preset Options

Vacuuming ............................................................................ 719 19.11. Client Connection Defaults ...................................................................... 721 19 ........................................................................................ 744 20. Client Authentication ................................................................................. Coverage Examination ....................................................................... 971 IV. Client Interfaces .....................................................................................

Vacuuming ............................................................................ 697 20.11. Client Connection Defaults ...................................................................... 699 20 ........................................................................................ 721 21. Client Authentication ................................................................................. Coverage Examination ....................................................................... 943 IV. Client Interfaces .....................................................................................

Automatic Vacuuming ....................................................................... 681 19.11. Client Connection Defaults ................................................................. 682 19.12. Options ................................................................................... 704 20. Client Authentication ................................................................................. Test Coverage Examination ................................................................. 921 IV. Client Interfaces .....................................................................................

Automatic Vacuuming ....................................................................... 660 20.11. Client Connection Defaults ................................................................. 662 20.12. Options ................................................................................... 684 21. Client Authentication ................................................................................. Test Coverage Examination ................................................................. 897 IV. Client Interfaces .....................................................................................

Vacuuming ............................................................................ 677 20.11. Client Connection Defaults ...................................................................... 679 20 ........................................................................................ 701 21. Client Authentication ................................................................................. Coverage Examination ....................................................................... 909 IV. Client Interfaces .....................................................................................