Planning Table Redistribution 907 Table Redistribution Method 907 Managing Redistribution in Large-Scale Greenplum Systems 907 Systems with Abundant Free Disk Space 908 VMware Greenplum 7 Documentation application_name 1707 array_nulls 1707 authentication_timeout 1707 autovacuum 1707 autovacuum_analyze_scale_factor 1708 autovacuum_analyze_threshold 1708 autovacuum_freeze_max_age 1708 autovacuum_max_workers autovacuum_naptime 1709 autovacuum_vacuum_cost_delay 1709 autovacuum_vacuum_cost_limit 1709 autovacuum_vacuum_scale_factor 1710 VMware Greenplum 7 Documentation VMware by Broadcom 100 autovacuum_vacuum_threshold

ETL Spring Cloud Data Flow Massively Parallel (MPP) PostgreSQL Kernel Petabyte Scale Loading Query Optimizer (GPORCA) Workload Manager Polymorphic Storage Command Center 每个节点6个segment 每个定点有50个边的图 5B edges (1K) (10K) (100K) (1M) (10M) (100M) Note: log-log scale (100s) (1s) (10K s) (1M s) 可扩展性 – PageRank 性能 2017.thegiac.com MADlib vs. Spark: 不不同的产品，侧重点不不同

Planning Table Redistribution 1127 Table Redistribution Method 1127 Managing Redistribution in Large-Scale Greenplum Systems 1128 Systems with Abundant Free Disk Space 1128 Systems with Limited Free Disk parallel processing (MPP) database server that supports next generation data warehousing and large-scale analytics processing. By automatically partitioning data and running parallel queries, it allows 170476535 - PXF PXF incorrectly wrote a Parquet decimal value that was specified with precision and scale settings, and was unable to read the decimal value back. This issue is resolved. Release 6.2 Release

年的由慢到快的发展，累积了大量信息和数 据，数据在爆发式增长，这些海量数据急需新的计算方式，需要一场 计算方式的革命。 传统的主机计算模式在海量数据面前，除了造价昂贵外，在技术上也 难于满足数据计算性能指标，传统主机的 Scale-up 模式遇到了瓶颈， SMP（对称多处理）架构难于扩展，并且在 CPU 计算和 IO 吞吐上不 能满足海量数据的计算需求。 分布式存储和分布式计算理论刚刚被提出来，Google 的两篇著名论文 行业特别是收索引擎和分词检索等方面获得了巨大成功。 Big Date2.indd 1 16-11-22 下午3:38 2 由此，业界认识到对于海量数据需要一种新的计算模式来支持，这种 模式就是可以支持 Scale-out 横向扩展的分布式并行数据计算技术。 当时，开放的X86服务器技术已经能很好的支持商用，借助高速网络（当 时是千兆以太网）组建的 X86 集群在整体上提供的计算能力已大幅高 于传统 SMP

About the Expansion Schema 591 Planning Table Redistribution 592 Managing Redistribution in Large-Scale Greenplum Systems 592 Table Redistribution Methods 592 Systems with Abundant Free Disk Space 593 parallel processing (MPP) database server that supports next generation data warehousing and large-scale analytics processing. By automatically partitioning data and running parallel queries, it allows 170476535 - PXF : PXF incorrectly wrote a Parquet decimal value that was specified with precision and scale settings, and was unable to read the decimal value back. This issue is resolved. Release 6.2 Release

About the Expansion Schema 600 Planning Table Redistribution 601 Managing Redistribution in Large-Scale Greenplum Systems 601 Table Redistribution Methods 601 Systems with Abundant Free Disk Space 602 parallel processing (MPP) database server that supports next generation data warehousing and large-scale analytics processing. By automatically partitioning data and running parallel queries, it allows 170476535 - PXF : PXF incorrectly wrote a Parquet decimal value that was specified with precision and scale settings, and was unable to read the decimal value back. This issue is resolved. Release 6.2 Release

Planning Table Redistribution 1111 Table Redistribution Method 1111 Managing Redistribution in Large-Scale Greenplum Systems 1111 Systems with Abundant Free Disk Space 1112 Systems with Limited Free Disk parallel processing (MPP) database server that supports next generation data warehousing and large-scale analytics processing. By automatically partitioning data and running parallel queries, it allows 170476535 - PXF PXF incorrectly wrote a Parquet decimal value that was specified with precision and scale settings, and was unable to read the decimal value back. This issue is resolved. Release 6.2 Release

Planning Table Redistribution 1078 Table Redistribution Method 1078 Managing Redistribution in Large-Scale Greenplum Systems 1078 Systems with Abundant Free Disk Space 1078 Systems with Limited Free Disk parallel processing (MPP) database server that supports next generation data warehousing and large-scale analytics processing. By automatically partitioning data and running parallel queries, it allows 170476535 - PXF PXF incorrectly wrote a Parquet decimal value that was specified with precision and scale settings, and was unable to read the decimal value back. This issue is resolved. Release 6.2 Release

Planning Table Redistribution 1073 Table Redistribution Method 1073 Managing Redistribution in Large-Scale Greenplum Systems 1073 Systems with Abundant Free Disk Space 1074 Systems with Limited Free Disk parallel processing (MPP) database server that supports next generation data warehousing and large-scale analytics processing. By automatically partitioning data and running parallel queries, it allows 170476535 - PXF PXF incorrectly wrote a Parquet decimal value that was specified with precision and scale settings, and was unable to read the decimal value back. This issue is resolved. Release 6.2 Release

Planning Table Redistribution 1095 Table Redistribution Method 1095 Managing Redistribution in Large-Scale Greenplum Systems 1096 Systems with Abundant Free Disk Space 1096 Systems with Limited Free Disk parallel processing (MPP) database server that supports next generation data warehousing and large-scale analytics processing. By automatically partitioning data and running parallel queries, it allows 170476535 - PXF PXF incorrectly wrote a Parquet decimal value that was specified with precision and scale settings, and was unable to read the decimal value back. This issue is resolved. Release 6.2 Release