Alex Alexander & Linas Virbalas Hot standby and streaming replication will move the needle forward for high availability and scaling for a wide number of applications. Tungsten already supports clustering using warm standby. In this talk we will describe how to build clusters using the new PostgreSQL features and give our report from the trenches. This talk will cover how hot standby and streaming replication work from a user perspective, then dive into a description of how to use them, taking Tungsten as an example. We'll cover the following issues: * Configuration of warm standby and streaming replication * Provisioning new standby instances * Strategies for balancing reads across primary and standby database * Managing failover * Troubleshooting and gotchas Please join us for an enlightening discussion a set of PostgreSQL features that are interesting to a wide range of PostgreSQL users.

1. Building Tungsten Clusters with PostgreSQL Hot Standby and Streaming Replication Linas Virbalas and Alex Alexander Continuent, Inc.

3. Introductions

5. PostgresSQL 9: Hot Standby and Log Streaming

6. PostgreSQL 8.4 Warm Standby WAL Files PostgreSQL Master pg_xlogs Directory Archived WAL Files Archive Directory PostgreSQL Standby WAL Files pg_xlogs Directory pg_standby rsync to standby Continuous recovery

9. Introducing Log Streaming PostgreSQL Master PostgreSQL Standby Continuous replication to standby Recovery WAL Sender WAL Receiver Archived WAL Files Archive Directory Archiving

11. What is Tungsten?

14. Tungsten Clustering In Action Master DB Slave DB Master Host Slave Host Replicator Monitor Manager Manager Manager Application Server SQL Router/Connector Application Server SQL Router/Connector Management Client Management Client Replicator Monitor Manager

15. Distributed Rule-Based Management Broadcast commands and monitoring data Business Rules Manager (Coordinator) Manager Manager Admin Client Admin Client Group Communications Admin Client Local Services Local Services Local Services

16. Multiple Routes to Databases Java App Server Tungsten SQL Router PHP Application Tungsten Connector libpq.a Tungsten Cluster PostgreSQL JDBC Driver Admin & Monitoring Admin & Monitoring Virtual IP Address

17. Tungsten + PostgreSQL Hot Standby and Streaming Replication

25. How Tungsten covers all this? DBMS Replicator JMX Interface Replication State Model Backup Storage Plugin pg_dump/ pg_restore Plug-In Monitor DBMS Checker Plugin Tungsten Manager postgresql.conf recovery.conf pg_standby rsync Pg-wal Scripts Open Script Plugin

26. DEMO or A Summary in Action

27. Questions?

28. Contact Information EMEA and APAC Lars Sonckin kaari 16 02600 Espoo, Finland Tel +358 50 517 9059 Fax +358 9 863 0060 Continuent Web Site: http://www.continuent.com HQ and Americas 560 S. Winchester Blvd., Suite 500 San Jose, CA 95128 Tel (866) 998-3642 Fax (408) 668-1009 e -mail: [email_address] , linas.virbalas@continuent.com