Postgres-XC tutorial PDF - PGCon

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Present Status ● ● Project/Developer site ● ● http://postgres-xc.sourceforge.net/ http://sourceforge.net/projects/postgres-xc/ Now Version 1.0 available ● Base PostgreSQL version: 9.1 ● – Promptly merged with PostgreSQL 9.2 when available 64bit Linux on Intel X86_64 architecture – Tested on CentOS 5.8 and ubuntu 10.4 May 16th, 2012 PostgresXC 10
How to achieve R/W scalability Table distribution and replication ● Each table can be distributed or replicated ● ● ● ● ● Not a simple database replication Well suited to distribute star schema structure database – Transaction tables → Distributed – Master tables → Replicate Join pushdown Where clause pushdown Parallel aggregates May 16th, 2012 PostgresXC 11
Page 1 and 2: PGCon2012 Tutorial Configuring Writ
Page 3 and 4: Chapter A PostgresXC Introduction
Page 5 and 6: Summary (1) ● PostgreSQLbased d
Page 7 and 8: Symmetric Cluster (1) PostgreSQL re
Page 9: Read/Write Scalability DBT1 throu
Page 13 and 14: Major Difference from PostgreSQL
Page 15 and 16: Summary ● ● Coordinator ● ●
Page 17 and 18: Difference from vanilla PostgreSQL
Page 19 and 20: How each component works Act as jus
Page 21 and 22: Chapter B Cluster design, navigatio
Page 23 and 24: General advice ● Avoid data mater
Page 25 and 26: Online transaction processing (OLTP
Page 27 and 28: B2 Code and binaries Code navigat
Page 29 and 30: Structure of code 2 ● Pooler -
Page 31 and 32: B3 Everything about configuration
Page 33 and 34: Configuration parameters ● ● Ba
Page 35 and 36: Node startup ● ● Coordinator/
Page 37 and 38: Demonstration psql client GTM Port
Page 39 and 40: CREATE TABLE extensions ● Control
Page 41 and 42: Point in time recovery PITR ●
Page 43 and 44: Chapter C Distributing data effecti
Page 45 and 46: Replicated Tables Writes Reads writ
Page 47 and 48: Querying replicated tables ● Exam
Page 49 and 50: Replicated tables - multirow oper
Page 51 and 52: Distributed Table ● ● ● Write
Page 53 and 54: Distributed tables - multirow ope
Page 55 and 56: ● JOINs Example: Join on distribu
Page 57 and 58: ● Perfoming JOINs on datanodes Ex
Page 59 and 60: Shippability of Joins Hash/Module d
Page 61 and 62:
Choosing distribution strategy (1)
Page 63 and 64:
Example DBT1 (1) ● author, item
Page 65 and 66:
Example DBT1 (3) ● Shopping_car
Page 67 and 68:
DBT1 scaleup ● Old data, we w
Page 69 and 70:
Chapter D Backup, restore, recovery
Page 71 and 72:
Example configuration (2) ● GTM
Page 73 and 74:
General ● Coordinator and Datanod
Page 75 and 76:
Cold backup of each database cluste
Page 77 and 78:
Physical backup of each database cl
Page 79 and 80:
Hot backup (2) ● ● ● ● Othe
Page 81 and 82:
Hot backup - coord1 example ● Con
Page 83 and 84:
GTM Hot Backup - GTM Sandby ● ●
Page 85 and 86:
GTMStandby backs up ● GTM stand
Page 87 and 88:
Restore from pg_dump and pg_dumpall
Page 89 and 90:
Restore from the cold backup (2)
Page 91 and 92:
Recovery.conf settings coord1 examp
Page 93 and 94:
When coordinator or datanode crashe
Page 95 and 96:
If GTM crashes ● ● ● ● ●
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Run GTM Proxies $ cat /home/koichi/
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Additional gtm_proxy options ● Ti
Page 101 and 102:
Running GTMStandby ● Run GTM as
Page 103 and 104:
HA General ● ● ● ● Postg
Page 105 and 106:
Coordinator/datanode configuration
Page 107 and 108:
Cleaningup outstanding 2PC ●
Page 109 and 110:
Sites to know ● ● ● Main mana
Page 111 and 112:
Documentation ● ● Published in
Page 113 and 114:
Release policy and code merge May 1
Page 115 and 116:
What next? ● First major release,
Page 117:
Thank You Very Much! May 16th, 2012
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