Types of replication, pooling and ha
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The document discusses various types of PostgreSQL replication, including logical, streaming, and trigger-based replication, as well as their features and configurations. It also covers connection pooling methods like pgpool-ii and pgbouncer for optimizing database connections. Additionally, it outlines high availability solutions such as Pacemaker and Repmgr for managing services and monitoring replication processes.
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Types of replication, pooling and ha
- 1. Types of PostgreSQL replication, pooling and HA BGPUG conf 2017
- 2. Replication
- 3. Replication ● Logical replication ● Streaming replication
- 4. Slony ● Trigger based replication ● Supports PostgreSQL before 9.4 ● Cascading replication
- 5. pglogical ● Row filtering on provider ● Column filtering on provider ● Delayed replication ● Synchronous replication ● Configurable conflict resolution ● Merge data from multiple masters
- 6. Streaming replication ● WAL logs are shipped via network ● Synchronous or asynchronous ● Slave can be made master
- 8. Connection pooling ● Lowers connection time ● Serializes connections ● Lowers the number of connections to the database ● Lowers system load
- 9. pgpool-II ● Connection pooling ● Replication ● Load balancing ● Limit of exceeding connections
- 10. pgbouncer ● Session pooling ● Transaction pooling ● Statement pooling ● Low memory requirements ● Live upgrade
- 12. Pacemaker ● Uses scripts (resource agents) to manage services ● Can manage multiple services in a single cluster
- 13. Pacemaker
- 14. Pacemaker
- 15. repmgr ● Monitoring of the replication process ● Automatic failover ● Switchover ● Cloning ● Barman support
- 16. Q & A