Building the last WAL on S3
Nearly two years ago, we started Archil with a simple realization: it was clear that people were spending immense effort to build new, serve...
Topic
#storage
9 篇笔记
wal3: A Write-Ahead Log for Chroma, Build on Object Storage
wal3, Chroma's write-ahead log, combining a 30-year-old lock-free algorithm with S3's newest conditional writes feature.
OpenEBS vs Longhorn 深度对比
OpenEBS vs Longhorn 深度对比 调研时间：2026-07-26 ｜ 数据来源：OpenEBS v4.5.x 官方文档 + Longhorn v1.12.0 官方文档 概览速查 | 维度 | OpenEBS | Longhorn | |---|---|---| | 定位 | CAS/CNS 容器原生存储，多引擎可选 | 轻量分布式块存储，每卷独立 Engine | | CNCF 状…
CSGHub cStor 存储故障排查报告
📝 摘要 本文记录了 CSGHub 集群一次由 OpenEBS cStor 3.6.0 存储故障引发的 Redis Pod CrashLoopBackOff 排查全过程，故障波及四个 CStorPoolInstance 全部进入只读状态。排查揭示三层根因：池容量达 82% 触发 cStor 硬编码的 85% 只读保护阈值（不可配置、不可自动解除）；清理容量后卷副本 rebuild 陷入状态机死锁…
Launching a million sandboxes per second in constant time
They say that in the future, everyone will have their own sandbox company for 15 minutes. Let's make that simpler, here's exactly how I buil...
一、整体架构
这次问题的核心现象是： 最终定位： OpenEBS 后端已经扩容成功，但 Linux device-mapper（multipath）层没有刷新容量，导致文件系统仍看到旧大小。 二、问题现象 PVC describe 看到： 但 events 中持续出现： 以及： 同时又有： 这是一个非常“矛盾”的状态。 --- 三、第一次误判 最开始以为： 因为： - external-resizer 持续 r…
protocols for transactional usage of object storage
building correct applications w/o external coordination
DuckDB Internals: Why is DuckDB Fast?
Walk through DuckDB's internals: how it skips serialization overhead, parses and optimizes SQL, and stores data in columnar row groups with zone maps.
Building and operating a pretty big storage system called S3
Three distinct perspectives on scale that come along with building and operating a storage system the size of S3.