https://wippler.dev Last 10 notes on wippler.dev Quartz -- quartz.jzhao.xyz https:/wippler.dev/software-internals/Transactions https:/wippler.dev/software-internals/Transactions SQL ANSI Isolation Levels § We’ve known since 1995, the standard Isolation levels defined by ANSI are terrible A critique of ANSI SQL Isolation layers (Transaction Processing Book followup) PAPER: # A critique of ANSI SQL isolation levels . Sat, 27 Dec 2025 12:39:54 GMT https:/wippler.dev/software-internals/Write-Ahead-Logging https:/wippler.dev/software-internals/Write-Ahead-Logging WAL Checksums § “sqlite has no checksums and is thus irresponsible for production use” — Miller Discussion regarding the reliability of transactions when used in database systems that employ a WAL without checksums to verify the integrity of the transaction. Sat, 27 Dec 2025 12:39:54 GMT https:/wippler.dev/posts/ https:/wippler.dev/posts/ Sat, 27 Dec 2025 12:39:54 GMT https:/wippler.dev/quotes/2024 https:/wippler.dev/quotes/2024 This years Quote Roundup is longer than any other year, as I collected over 200 quotes this year, 2x more than last year. You face your fear, because your goal demands it. Sat, 27 Dec 2025 12:39:54 GMT https:/wippler.dev/quotes/2025 https:/wippler.dev/quotes/2025 This year I collected 295 quotes, here are the best of 2025. I invented a thought controlled air freshener, it makes scents when you think about it. Khrushchev was interrupted by a shout from a heckler in the audience. Sat, 27 Dec 2025 12:39:54 GMT https:/wippler.dev/slatedb/Contents https:/wippler.dev/slatedb/Contents SlateDB is an embedded database built on object storage. I’m currently working on the golang port you can find here https://github.com/slatedb/slatedb-go This is where I’m storing my notes and documentation I write on my journey. Sat, 27 Dec 2025 12:39:54 GMT https:/wippler.dev/slatedb/SSTables https:/wippler.dev/slatedb/SSTables https://github.com/facebook/rocksdb/wiki/RocksDB-Overview SSTable Format V0 § The SST is read starting from bottom to top, starting with Offset of SsTableInfoT +-----------------------------------------------+ | SSTable | +-----------------------------------------------+ | +-----------------------------------------+ | | | List of Blocks | | | | +-----------------------------------+ | | | | | block. Sat, 27 Dec 2025 12:39:54 GMT https:/wippler.dev/slatedb/The-Manifest-Log https:/wippler.dev/slatedb/The-Manifest-Log The Manifest § The manifest file is essential for maintaining database consistency, managing SST files, and managing the current state of the database. Sat, 27 Dec 2025 12:39:54 GMT https:/wippler.dev/software-internals/Cache https:/wippler.dev/software-internals/Cache What does a cache do? PAPER: Kangaroo - Theory and Practice of Caching Billions of Tiny Objects on Flash # Hokkaido Television Broadcasting unlocks cost savings and performance improvements with Momento Cache How Uber Serves Over 40 Million Reads Per Second from Online Storage Using an Integrated Cache A large scale analysis of hundreds of in-memory cache clusters at Twitter Scaling memcache at Facebook . Sat, 27 Dec 2025 12:39:54 GMT https:/wippler.dev/software-internals/Databases https:/wippler.dev/software-internals/Databases Related Topics § Write Ahead Logging Transactions Jepsen § Jepsen is an effort to improve the safety of distributed databases, queues, consensus systems, etc. Sat, 27 Dec 2025 12:39:54 GMT