~/talk

Availability and Performance Tradeoffs in Global Database Deployments

Talkat Percona Live Online 2020 · 2020-10-20..10-21· [databases, web-performance]
slides:none on file

Explains concrete tradeoffs: use logical replication when you need table-level filtering, zero-downtime schema rollout or bi‑directional conflict handling at the cost of tens of seconds to minutes of replica lag; use physical/storage‑aware replication to get subsecond cross‑region lag and fast DR but you replicate whole volumes and cannot easily shard subsets. Shows Amazon Aurora Global Database sending log records across regions, achieves ~200,000 writes per second, under 1s RPO and under 1 minute RTO in tested scenarios.

AI-written summary · about

  1. 0:00Start
  2. 0:41Global Relational Databases
  3. 2:17Availability Zones
  4. 4:25Primary Options for Supporting Global Database Deployments Logical Replication and Physical Replication
  5. 4:45Replication
  6. 5:23Logical Replication
  7. 8:11Challenges and Limitations with Logical Replication
  8. 9:49Monitoring and Management
  9. 10:55Benefits and Challenges of Using Physical Replication
  10. 13:08Storage-Based Replication
  11. 13:46Database Recovery
  12. 14:58Amazon Aurora
  13. 17:34Logical and Physical Replication Capabilities in Aurora
  14. 20:08How Does Aurora Global Database Provide Fast Cross-Region Disaster Recovery
  15. 22:05Failure in Region
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