DDIA References — link changesReferences in Designing Data-Intensive Applications, 2nd edition that stopped resolving, came back, or were rewritten.https://ddia.l3.ai/feed.xml2026-08-29T18:32:34ZInside the Hotspot VM: Clocks, Timers and Scheduling Events—Part I—Windows — rewritten where it standshttps://ddia.l3.ai/ref/c9-41/#2026-08-29T18:32:34Z2026-08-29T18:32:34ZCited in Chapter 9. The document at https://web.archive.org/web/20160308031939/https://blogs.oracle.com/dholmes/entry/inside_the_hotspot_vm_clocks was rewritten where it stands.6 Rules of Thumb for MongoDB Schema Design — rewritten where it standshttps://ddia.l3.ai/ref/c3-11/#2026-08-29T17:51:49Z2026-08-29T17:51:49ZCited in Chapter 3. The document at https://www.mongodb.com/blog/post/6-rules-of-thumb-for-mongodb-schema-design was rewritten where it stands.How (Not) to Write a Pipeline — rewritten where it standshttps://ddia.l3.ai/ref/c12-5/#2026-08-29T17:51:41Z2026-08-29T17:51:41ZCited in Chapter 12. The document at https://web.archive.org/web/20250107135013/https://cohost.org/tef/post/1764930-how-not-to-write-a was rewritten where it stands.Immutability, MVCC, and Garbage Collection — rewritten where it standshttps://ddia.l3.ai/ref/c12-44/#2026-08-29T17:51:38Z2026-08-29T17:51:38ZCited in Chapter 12. The document at https://web.archive.org/web/20220122020806/http://www.xaprb.com/blog/2013/12/28/immutability-mvcc-and-garbage-collection/ was rewritten where it stands.Hive 0.14 Cost Based Optimizer (CBO) Technical Overview — rewritten where it standshttps://ddia.l3.ai/ref/c11-26/#2026-08-29T17:51:36Z2026-08-29T17:51:36ZCited in Chapter 11. The document at https://web.archive.org/web/20170607112708/http://hortonworks.com/blog/hive-0-14-cost-based-optimizer-cbo-technical-overview/ was rewritten where it stands.Emerging Architectures for Modern Data Infrastructure: 2020 — rewritten where it standshttps://ddia.l3.ai/ref/c1-14/#2026-08-29T17:50:14Z2026-08-29T17:50:14ZCited in Chapter 1. The document at https://future.a16z.com/emerging-architectures-for-modern-data-infrastructure-2020/ was rewritten where it stands.Granularity of Locks and Degrees of Consistency in a Shared Data Base — rewritten where it standshttps://ddia.l3.ai/ref/c8-3/#2026-08-29T17:49:27Z2026-08-29T17:49:27ZCited in Chapter 8. The document at https://citeseerx.ist.psu.edu/pdf/e127f0a6a912bb9150ecfe03c0ebf7fbc289a023 was rewritten where it stands.Revisiting the Relationship Between Non-Blocking Atomic Commitment and Consensus — rewritten where it standshttps://ddia.l3.ai/ref/c10-80/#2026-08-29T17:49:24Z2026-08-29T17:49:24ZCited in Chapter 10. The document at https://citeseerx.ist.psu.edu/pdf/5d06489503b6f791aa56d2d7942359c2592e44b0 was rewritten where it stands.Principles of Transaction-Oriented Database Recovery — rewritten where it standshttps://ddia.l3.ai/ref/c8-8/#2026-08-29T17:49:22Z2026-08-29T17:49:22ZCited in Chapter 8. The document at https://citeseerx.ist.psu.edu/pdf/11ef7c142295aeb1a28a0e714c91fc8d610c3047 was rewritten where it stands.Consequences of an Insightful Algorithm — added to the list; the host blocks automated checkshttps://ddia.l3.ai/ref/c14-35/#2026-08-29T17:43:21Z2026-08-29T17:43:21ZCited in Chapter 14. https://www.youtube.com/watch?v=YRI40A4tyWU was added to the list; the host blocks automated checks (HTTP 429).Apache Arrow: High-Performance Columnar Data Framework — added to the list; the host blocks automated checkshttps://ddia.l3.ai/ref/c4-69/#2026-08-29T17:43:20Z2026-08-29T17:43:20ZCited in Chapter 4. https://www.youtube.com/watch?v=YhF8YR0OEFk was added to the list; the host blocks automated checks (HTTP 429).How We Learned to Stop Worrying and Love Fan-in at Twitter — added to the list; the host blocks automated checkshttps://ddia.l3.ai/ref/c2-1/#2026-08-29T17:43:19Z2026-08-29T17:43:19ZCited in Chapter 2. https://www.youtube.com/watch?v=WEgCjwyXvwc was added to the list; the host blocks automated checks (HTTP 429).Agile Architecture — added to the list; the host blocks automated checkshttps://ddia.l3.ai/ref/c13-10/#2026-08-29T17:43:18Z2026-08-29T17:43:18ZCited in Chapter 13. https://www.youtube.com/watch?v=VjKYO6DP3fo&list=PL055Epbe6d5aFJdvWNtTeg_UEHZEHdInE was added to the list; the host blocks automated checks (HTTP 429).Choosing Between Efficiency and Performance with RocksDB — added to the list; the host blocks automated checkshttps://ddia.l3.ai/ref/c4-41/#2026-08-29T17:43:17Z2026-08-29T17:43:17ZCited in Chapter 4. https://www.youtube.com/watch?v=tgzkgZVXKB4 was added to the list; the host blocks automated checks (HTTP 429).I See What You Mean — added to the list; the host blocks automated checkshttps://ddia.l3.ai/ref/c13-36/#2026-08-29T17:43:16Z2026-08-29T17:43:16ZCited in Chapter 13. https://www.youtube.com/watch?v=R2Aa4PivG0g was added to the list; the host blocks automated checks (HTTP 429).Rethinking Topology in Cassandra — added to the list; the host blocks automated checkshttps://ddia.l3.ai/ref/c7-15/#2026-08-29T17:43:15Z2026-08-29T17:43:15ZCited in Chapter 7. https://www.youtube.com/watch?v=Qz6ElTdYjjU was added to the list; the host blocks automated checks (HTTP 429).I'm coining the phrase 'effectively-once' for message processing with at-least-once + idempotent operations — added to the listhttps://ddia.l3.ai/ref/c12-72/#2026-08-29T17:43:15Z2026-08-29T17:43:15ZCited in Chapter 12. https://x.com/viktorklang/status/789036133434978304 was added to the list (HTTP 200).How Does Ceph Scrubbing Work? — added to the list; the host blocks automated checkshttps://ddia.l3.ai/ref/c13-53/#2026-08-29T17:43:14Z2026-08-29T17:43:14ZCited in Chapter 13. https://www.youtube.com/watch?v=M9QGMoc3GU8 was added to the list; the host blocks automated checks (HTTP 429).But recently a farmer had started grazing a herd of cows nearby. And whenever they stepped on the fiber link, they bent it enough to cause a blip — added to the listhttps://ddia.l3.ai/ref/c9-11/#2026-08-29T17:43:14Z2026-08-29T17:43:14ZCited in Chapter 9. https://x.com/uhoelzle/status/1263333283107991558 was added to the list (HTTP 200).Coordination Avoidance in Database Systems — added to the listhttps://ddia.l3.ai/ref/c13-45/#2026-08-29T17:43:13Z2026-08-29T17:43:13ZCited in Chapter 13. https://www.vldb.org/pvldb/vol8/p185-bailis.pdf was added to the list (HTTP 200).DynamoDB Adaptive Capacity: Smooth Performance for Chaotic Workloads (DAT327) — added to the list; the host blocks automated checkshttps://ddia.l3.ai/ref/c7-27/#2026-08-29T17:43:13Z2026-08-29T17:43:13ZCited in Chapter 7. https://www.youtube.com/watch?v=kMY0_m29YzU was added to the list; the host blocks automated checks (HTTP 429).It's a cliché that people get into tech to 'change the world.' So then, you have to actually consider what the impact of your work is on the world. The idea that you can or should exclude societal and political discussions in tech is idiotic. It means you're not doing your job — added to the listhttps://ddia.l3.ai/ref/c14-50/#2026-08-29T17:43:13Z2026-08-29T17:43:13ZCited in Chapter 14. https://x.com/jezhumble/status/1386758340894597122 was added to the list (HTTP 200).The Dataflow Model: A Practical Approach to Balancing Correctness, Latency, and Cost in Massive-Scale, Unbounded, Out-of-Order Data Processing — added to the listhttps://ddia.l3.ai/ref/c12-1/#2026-08-29T17:43:12Z2026-08-29T17:43:12ZCited in Chapter 12. https://www.vldb.org/pvldb/vol8/p1792-Akidau.pdf was added to the list (HTTP 200).CQRS and Event Sourcing — added to the list; the host blocks automated checkshttps://ddia.l3.ai/ref/c3-66/#2026-08-29T17:43:12Z2026-08-29T17:43:12ZCited in Chapter 3. https://www.youtube.com/watch?v=JHGkaShoyNs was added to the list; the host blocks automated checks (HTTP 429).The irony of distributed systems is that data loss is really easy but deleting data is surprisingly hard — added to the listhttps://ddia.l3.ai/ref/c12-48/#2026-08-29T17:43:12Z2026-08-29T17:43:12ZCited in Chapter 12. https://x.com/jaykreps/status/582580836425330688 was added to the list (HTTP 200).Highly Available Transactions: Virtues and Limitations — added to the listhttps://ddia.l3.ai/ref/c10-11/#2026-08-29T17:43:11Z2026-08-29T17:43:11ZCited in Chapter 10. https://www.vldb.org/pvldb/vol7/p181-bailis.pdf was added to the list (HTTP 200).Dissecting, Designing, and Optimizing LSM-Based Data Stores — added to the list; the host blocks automated checkshttps://ddia.l3.ai/ref/c4-17/#2026-08-29T17:43:11Z2026-08-29T17:43:11ZCited in Chapter 4. https://www.youtube.com/watch?v=hkMkBZn2mGs was added to the list; the host blocks automated checks (HTTP 429).Listening to a 'big data’/‘data science' talk. Mentally translating 'data' to '‘surveillance': ‘…everything starts with surveillance…' — added to the listhttps://ddia.l3.ai/ref/c14-23/#2026-08-29T17:43:11Z2026-08-29T17:43:11ZCited in Chapter 14. https://x.com/hashbreaker/status/598076230437568512 was added to the list (HTTP 200).Introducing pgroll: Zero-Downtime, Reversible, Schema Migrations for Postgres — added to the listhttps://ddia.l3.ai/ref/c3-26/#2026-08-29T17:43:11Z2026-08-29T17:43:11ZCited in Chapter 3. https://xata.io/blog/pgroll-schema-migrations-postgres was added to the list (HTTP 200).MillWheel: Fault-Tolerant Stream Processing at Internet Scale — added to the listhttps://ddia.l3.ai/ref/c12-65/#2026-08-29T17:43:10Z2026-08-29T17:43:10ZCited in Chapter 12. https://www.vldb.org/pvldb/vol6/p1033-akidau.pdf was added to the list (HTTP 200).etcd: Distributed Locking and Service Discovery — added to the list; the host blocks automated checkshttps://ddia.l3.ai/ref/c9-30/#2026-08-29T17:43:10Z2026-08-29T17:43:10ZCited in Chapter 9. https://www.youtube.com/watch?v=HJIjTTHWYnE was added to the list; the host blocks automated checks (HTTP 429).Data is not toxic—which implies no benefit—but rather hazardous material, where we must balance need vs. want — added to the listhttps://ddia.l3.ai/ref/c14-38/#2026-08-29T17:43:10Z2026-08-29T17:43:10ZCited in Chapter 14. https://x.com/cory_scott/status/706586399483437056 was added to the list (HTTP 200).Metastable Failures in the Wild — added to the listhttps://ddia.l3.ai/ref/c2-9/#2026-08-29T17:43:09Z2026-08-29T17:43:09ZCited in Chapter 2. https://www.usenix.org/system/files/osdi22-huang-lexiang.pdf was added to the list (HTTP 200).MAD Skills: New Analysis Practices for Big Data — added to the listhttps://ddia.l3.ai/ref/c1-12/#2026-08-29T17:43:09Z2026-08-29T17:43:09ZCited in Chapter 1. https://www.vldb.org/pvldb/vol2/vldb09-219.pdf was added to the list (HTTP 200).H-Store/VoltDB Architecture vs. CEP Systems and Newer Streaming Architectures — added to the list; the host blocks automated checkshttps://ddia.l3.ai/ref/c8-59/#2026-08-29T17:43:09Z2026-08-29T17:43:09ZCited in Chapter 8. https://www.youtube.com/watch?v=hD5M4a1UVz8 was added to the list; the host blocks automated checks (HTTP 429).Artificial Intelligence in Healthcare Is Racist — added to the listhttps://ddia.l3.ai/ref/c14-16/#2026-08-29T17:43:09Z2026-08-29T17:43:09ZCited in Chapter 14. https://www.zdnet.com/article/artificial-intelligence-in-healthcare-is-racist/ was added to the list (HTTP 200).Implementing Database Operations Using SIMD Instructions — added to the listhttps://ddia.l3.ai/ref/c4-80/#2026-08-29T17:43:09Z2026-08-29T17:43:09ZCited in Chapter 4. https://www1.cs.columbia.edu/~kar/pubsk/simd.pdf was added to the list (HTTP 200).What You Always Wanted to Know About Datalog (And Never Dared to Ask) — added to the listhttps://ddia.l3.ai/ref/c3-61/#2026-08-29T17:43:09Z2026-08-29T17:43:09ZCited in Chapter 3. https://www2.cs.sfu.ca/CourseCentral/721/jim/DatalogPaper.pdf was added to the list (HTTP 200).The Declarative Imperative: Experiences and Conjectures in Distributed Logic — added to the list, already unreachablehttps://ddia.l3.ai/ref/c3-3/#2026-08-29T17:43:09Z2026-08-29T17:43:09ZCited in Chapter 3. https://www2.eecs.berkeley.edu/Pubs/TechRpts/2010/EECS-2010-90.pdf was added to the list, already unreachable.Building an Elastic Query Engine on Disaggregated Storage — added to the listhttps://ddia.l3.ai/ref/c1-26/#2026-08-29T17:43:08Z2026-08-29T17:43:08ZCited in Chapter 1. https://www.usenix.org/system/files/nsdi20-paper-vuppalapati.pdf was added to the list (HTTP 200).An Empirical Evaluation of Columnar Storage Formats — added to the listhttps://ddia.l3.ai/ref/c4-66/#2026-08-29T17:43:08Z2026-08-29T17:43:08ZCited in Chapter 4. https://www.vldb.org/pvldb/vol17/p148-zeng.pdf was added to the list (HTTP 200).All In’ with Determinism for Performance and Testing in Distributed Systems — added to the list; the host blocks automated checkshttps://ddia.l3.ai/ref/c6-16/#2026-08-29T17:43:08Z2026-08-29T17:43:08ZCited in Chapter 6. https://www.youtube.com/watch?v=gJRj3vJL4wE was added to the list; the host blocks automated checks (HTTP 429).Achieving Precise Clock Synchronization on AWS — added to the listhttps://ddia.l3.ai/ref/c9-70/#2026-08-29T17:43:08Z2026-08-29T17:43:08ZCited in Chapter 9. https://www.yugabyte.com/blog/aws-clock-synchronization/ was added to the list (HTTP 200).The Saddest Moment — added to the listhttps://ddia.l3.ai/ref/c9-102/#2026-08-29T17:43:07Z2026-08-29T17:43:07ZCited in Chapter 9. https://www.usenix.org/system/files/login-logout_1305_mickens.pdf was added to the list (HTTP 200).Deep Dive into Common Open Formats for Analytical DBMSs — added to the listhttps://ddia.l3.ai/ref/c4-65/#2026-08-29T17:43:07Z2026-08-29T17:43:07ZCited in Chapter 4. https://www.vldb.org/pvldb/vol16/p3044-liu.pdf was added to the list (HTTP 200).The State of (Full) Text Search in PostgreSQL 12 — added to the list; the host blocks automated checkshttps://ddia.l3.ai/ref/c4-93/#2026-08-29T17:43:07Z2026-08-29T17:43:07ZCited in Chapter 4. https://www.youtube.com/watch?v=c8IrUHV70KQ was added to the list; the host blocks automated checks (HTTP 429).XFT: Practical Fault Tolerance Beyond Crashes — added to the listhttps://ddia.l3.ai/ref/c9-18/#2026-08-29T17:43:06Z2026-08-29T17:43:06ZCited in Chapter 9. https://www.usenix.org/system/files/conference/osdi16/osdi16-liu.pdf was added to the list (HTTP 200).What Modern NVMe Storage Can Do, and How to Exploit It: High-Performance I/O for High-Performance Storage Engines — added to the listhttps://ddia.l3.ai/ref/c4-32/#2026-08-29T17:43:06Z2026-08-29T17:43:06ZCited in Chapter 4. https://www.vldb.org/pvldb/vol16/p2090-haas.pdf was added to the list (HTTP 200).Performance Related Changes and Their User Impact — added to the list; the host blocks automated checkshttps://ddia.l3.ai/ref/c2-24/#2026-08-29T17:43:06Z2026-08-29T17:43:06ZCited in Chapter 2. https://www.youtube.com/watch?v=bQSE51-gr2s was added to the list; the host blocks automated checks (HTTP 429).Simple Testing Can Prevent Most Critical Failures: An Analysis of Production Failures in Distributed Data-Intensive Systems — added to the listhttps://ddia.l3.ai/ref/c2-40/#2026-08-29T17:43:05Z2026-08-29T17:43:05ZCited in Chapter 2. https://www.usenix.org/system/files/conference/osdi14/osdi14-paper-yuan.pdf was added to the list (HTTP 200).