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# Database Magic behind 40 Million operations/s

When a single flight booking triggered 25,000 operations, traditional databases buckled. Discover how Amadeus uses NoSQL to seamlessly process 40 million operations per second with zero downtime.

- **Speakers:** Jürgen Pilz
- **Event:** World Congress 2023
- **Published:** October 6, 2023
- **Duration:** 24:22
- **URL:** https://www.wearedevelopers.com/videos/748-database-magic-behind-40-million-operations-s

## Summary

Travel technology giant Amadeus processes a massive volume of global bookings, requiring a backend capable of executing over 40 million operations per second. Because a single user flight booking triggers roughly 25,000 distinct backend operations, traditional relational databases eventually buckled under steep latency spikes. To solve this, Amadeus transitioned its operations—including its flight catalog, inventory management, and Customer 360 initiatives—to Couchbase, leveraging a distributed, memory-first NoSQL architecture.

A core advantage of this migration is the use of flexible JSON document modeling over strict relational normalization, which allows teams to ingest diverse real-time event streams via Kafka without rigid schema constraints. Performance scales seamlessly through a masterless node architecture, enabling automated data distribution and continuous horizontal scaling with zero downtime. High availability is further guaranteed by cross datacenter replication and isolated fault domains, preventing regional outages and collectively helping the Customer 360 platform achieve 100% stable uptime.

Extending robust database architectures to edge environments additionally unlocks seamless workflows for disconnected workers. Using peer-to-peer mobile synchronization, frontline workers like Emirates' airline staff maintain offline-first application functionality, instantly resolving critical operational data gaps when internet connections drop. Finally, managing massive global deployments remains fully compliant with complex data sovereignty laws like GDPR by utilizing geo-fenced buckets explicitly zoned across localized hybrid-cloud environments.

**Keywords:** distributed NoSQL architecture, memory-first caching, JSON document modeling, cross datacenter replication, offline-first mobile synchronization, masterless cluster scaling, legacy database migration, high-throughput low-latency processing, GDPR data localization, customer 360 consolidation, kafka event streaming, travel industry infrastructure, peer-to-peer mobile sync, fault domain isolation, hybrid cloud provisioning

## Chapters

1. **Overview of Amadeus and its passenger booking scale** (00:03) — How a leading travel industry platform scaled to handle fifty million operations per second.
1. **Introduction to Couchbase and distributed multimodel architecture** (03:10) — An overview of a memory-first database merging the capabilities of Membase and CouchDB.
1. **Consolidating diverse database functionality within one system** (05:45) — Combining relational queries, document storage, and analytics prevents complex database infrastructure sprawl.
1. **Scaling clusters and handling automated replica failover** (07:36) — How independent nodes automatically rebalance workloads and provide high availability during failures.
1. **Managing catalog and inventory with flexible document structures** (10:35) — Handling heterogeneous airline fare information using unstructured documents and eventing pipelines.
1. **Improving application response times for customer 360 workloads** (12:54) — Migrating from relational systems to a document store decreases query latency for personalized passenger applications.
1. **Deploying hybrid architectures and cross-datacenter replication instances** (15:44) — Configuring global data distribution using managed services, local deployments, and container orchestration.
1. **Supporting offline mobile access using peer-to-peer synchronization** (17:49) — How edge devices utilize local storage and wireless protocols to operate without internet connectivity.
1. **Audience questions on database migration and data compliance** (20:32) — Answers to questions regarding migration paths, data compliance, and managing referential integrity in document stores.

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