Upgrading MADlib Functions 389 Uninstalling MADlib 389 VMware Greenplum v6.18 Documentation VMware, Inc. 18 Remove MADlib objects from the database 389 Uninstall the Greenplum Database MADlib Package 389 longer generates the index scan in this situation. Release 6.13 Release 6.13.0 Release Date: 2020-12-18 VMware Tanzu Greenplum 6.13.0 is a minor release that includes changed features and resolves several --------+-------+-------------------------- sales | cust | main | CREATE | TABLE | 2016-02-09 18:10:07.867977-08 VMware Greenplum v6.18 Documentation VMware, Inc. 608 sales | cust | main | VACUUM

动态分区裁剪 公共表达式的下推 高效处理相关子查询 超过8年的投资，多位博士的长期贡献 基于Cascades / Volcano框架, Goetz Graefe 优化分布式大数据系统中特别复杂的查询 18 Madlib: 迭代并行模型训练 Master model = init(…) WHILE model not converged model = SELECT model 表‘SALES’ ■ 3.5倍的TPS提升 ■ master CPU使用率大幅提高 ■ TPS随着master CPU核数增加同 步提高 ■ 22万 TPS （192核单机部署 ，master+18 segments） 34 Pivotal Confidential–Internal Use Only TPC-B基准测试：UPDATE ■ 得益于并发更改特性 ■ 70倍的TPS提升 35 通过kafka近实时（500ms~1s） 间隔加载：100万/s ■ 简单查询1000并发：1s内返回 ■ 复杂关联查询：s级返回 数据量 机器数 表个数 索引个数 并发数 插入间隔 平均时延 最长时延 插入速度 9.8亿 18 4 12 16 500ms 170ms 1100ms 300万/s 展望 Greenplum 6.x/7 ■ PostgreSQL合并：BRIN索引和并行扫描 ■ 锁和事务的优化 ■ 磁盘IO的资源管理

​master​/​bin​/​pg_ctl ​-​w ​-​l /​data2​/​primary​/​gpseg18​/​pg_log​/​startup​.​log -​D ​/​data2​/​primary​/​gpseg18 ​-​o ​"-i -p 40006 -M mirrorless -b 20 -C 18 -z 0"​ start 有时候单独执行各种命令没有问题，但是使用 SSH 执行时报错。

数据库，SQL-on-Hadoop 技术还没有足够 成熟。特别如数据仓库、集市、ODS、交互式分析数据平台等系统， MPP 数据库有明显的优势。 Big Date2.indd 17 16-11-22 下午3:38 18 而如果你的数据加载后只会被用于读取少数次的任务和用于少数次 的访问，而且主要用于 Batch（不需要交互式），对计算性能不是 很敏感，那 Hadoop 也是不错的选择，因为 Hadoop 不需要你花费 用于交互式高性能分析， Hadoop 用于数据 Staging、MPP 的数据备份或一些 ETL batch 的数据 清洗任务，两者相辅相成，在各自最擅长的场景中发挥其特性和优势。 Big Date2.indd 18 16-11-22 下午3:38 Greenplum 精粹文集 19 6. Greenplum 未来的发展之路 过去十年，IT 技术潮起潮落发生着时刻不停的变化，而在这变化中的 不变就是 [ERROR]:-sdw5:40000:/data1/primary/gpseg24 [ERROR]:- relfilenode | ctid | persistent_tid [ERROR]:- 13795767 | (205,18) | None [ERROR]:- 13795768 | (205,17) | None [ERROR]:- 13795769 | (7444,134) | None [ERROR]:- 13799293

5147249 46秒 1.88 5187579 52x CDFISPA D 支票支付档表 18分 1.4G 1857698 4 48秒 1.51 18755489 22.5x CIFISGR I 集团用户业务信息档案表 55分 4.31G 1167530 3 181秒 4.69 11820161 18x Greenplum计算能力测试结果 Query：合并字段测试、代码转换测试。GP

Instances P4 P5 P6 P10 P11 P12 P16 P17 P18 P22 P23 P24 M1 M2 M3 M4 M5 M6 M7 M8 M9 M10 M11 M12 M13 M14 M15 M16 M17 M18 M19 M20 M21 M23 M24 M22 统计信息收集 

SP2 上进行 了 TPC-DS 性能测试。测试过程如下： a. TPC-DS 介绍 TPC-DS 采用星型、雪花型等多维数据模式。包含 7 张事实表、17 张维度表，平均每张表含有 18 列，其工作负载包 含 99 个 SQL 查询，覆盖 SQL99 和 2003 的核心部分以及 OLAP。这个测试集包含对大数据集的统计、报表生成、联 机查询、数据挖掘等复杂应用，测试用的数据和取值是有倾斜的，与真实场景非常相似。 75 7883 95 17445 16 4793 36 11786 56 4269 76 2299 96 2235 17 3450 37 6569 57 6427 77 3829 97 6390 18 4298 38 4281 58 3566 78 16424 98 3185 19 2964 39 17659 59 13204 79 3540 99 3103 20 2070 40 2290 60

Science Library Package 450 R Data Science Libraries 450 VMware Greenplum 6 Documentation VMware, Inc 18 Installing the R Data Science Library Package 451 Uninstalling the R Data Science Library Package package was missing required Python libraries. Release 6.22 Release 6.22.2 Release Date: 2022-11-18 VMware Tanzu Greenplum 6.22.2 is a maintenance release that resolves several issues. Resolved Issues all gangs. VMware Greenplum 6 Documentation VMware, Inc 159 Release 6.20.4 Release Date: 2022-05-18 VMware Tanzu Greenplum 6.20.4 is a maintenance release that resolves a single issue. Resolved Issues

Failed Upgrade 450 PXF Upgrade and Migration 450 VMware Tanzu Greenplum 6 Documentation VMware, Inc 18 Migrating PXF from Greenplum 5.x to 6.x 450 Prerequisites 451 Step 1: Complete PXF Greenplum Database package was missing required Python libraries. Release 6.22 Release 6.22.2 Release Date: 2022-11-18 VMware Tanzu Greenplum 6.22.2 is a maintenance release that resolves several issues. Resolved Issues session’s temporary namespace was not dispatched to all gangs. Release 6.20.4 Release Date: 2022-05-18 VMware Tanzu Greenplum 6.20.4 is a maintenance release that resolves a single issue. Resolved Issues

435 Installing Additional Supplied Modules 435 VMware Tanzu Greenplum 6 Documentation VMware, Inc. 18 Configuring Timezone and Localization Settings 436 Configuring the Timezone 436 About Locale Support keepalive parameters are set and enforced for gpfdist connections. Release 6.22.2 Release Date: 2022-11-18 VMware Tanzu Greenplum 6.22.2 is a maintenance release that resolves several issues. Resolved Issues session's temporary namespace was not dispatched to all gangs. Release 6.20.4 Release Date: 2022-05-18 VMware Tanzu Greenplum 6.20.4 is a maintenance release that resolves a single issue. Resolved Issues