kube-apiserver通过storage.Interface与etcd交互,存储protobuf序列化数据,key由前缀拼接,value经Transformer加密。GuaranteedUpdate用etcd Txn实现乐观并发写,Create/Delete/Watch各有路径。排障需关注etcd延迟、转换失败等指标,区分apiserver与etcd问题。
本文介绍kube-apiserver排障方法,提出五轴坐标系:Storage/etcd、Watch/cache、Admission、Auth、APF。通过症状映射表快速定位问题轴,如401/403查Auth,503查Admission,504查APF,410查Watch。强调先定轴再下钻,避免误操作,并列出关键metrics和命令,区分apiserver与etcd问题,指导高效排障。
本文介绍kube-apiserver生产内核系列,聚焦控制面故障排障,以Storage/Watch/Admission/Auth/APF五轴为坐标系,规划16篇阅读路线。内容涵盖请求路径、watch cache、resourceVersion、Webhook、APF等机制,版本锚定Kubernetes v1.30.3,旨在帮助SRE归因504、410等错误,区分直连etcd与apiserver排障边界。
CloudJump III 提出引擎集成分层存储方案,将数据放置决策融入存储引擎,利用页类型、存活时间等元信息优化冷热数据分布。通过BPE缓存准入策略、OSS Buffer写合并及快照版本协议,实现性能稳定、成本优化和零停机备份,显著提升单位成本性能。
AWS Lambda can now reference deployment packages directly in customer-owned S3 buckets, removing the per-Region code storage quota and raising the managed default from 75 GB to 300 GB....
DoltHub has recently released Dolt 2.0, a major update to the open source version-controlled SQL database. The latest major version adds automatic storage optimization, including garbage...
本文讨论了FoundationDB的存储架构,重点在于客户端如何直接读取Storage Server,绕过Proxy和Resolver。每个Storage Server管理多个shard,支持异步复制。客户端通过缓存的元数据定位数据,并在5秒内读取版本。文章还探讨了数据迁移、负载均衡机制,以及读路径设计如何提高性能和一致性。
Amazon Bedrock AgentCore 提供三种持久化文件系统:Managed Session Storage、Amazon EFS 和 S3 Files,分别适用于个人私有数据、多方共享和写少读多的场景。用户可根据需求选择合适的存储方案。
Phase 1 gave us in-memory vectors and data chunks. But a database needs to persist data to disk and read it back. The challenge is designing a disk format that preserves the benefits of columnar...
SIG Storage是Kubernetes的一个特别兴趣小组,专注于持久数据和存储管理。随着状态工作负载的增加,SIG Storage推出了Volume Group Snapshot和Changed Block Tracking等新功能,以提升数据保护和备份效率。未来将关注智能数据管理和对象存储,以满足AI工作负载的需求。
AWS has recently introduced durability for Amazon ElastiCache for Valkey, enabling reliable data retention across failures and expanding support beyond caching to persistent workloads. The feature...
AWS recently announced ExtendDB, a DynamoDB-compatible adapter that lets developers use the DynamoDB API with different storage backends, starting with PostgreSQL. The project supports existing...
This article explores Kafka's transition toward a cloud-native architecture, examining how tiered storage, FinOps telemetry, elastic consumer scaling, virtual clusters, and Share Groups reshape...
Every time-series database makes a set of storage design decisions: how to lay out rows, when to compress, what to partition on. These decisions determine cost and query performance more than the...
Six years after PostgreSQL shipped the table access method API, the alternative storage engine ecosystem is thriving—but messier than early predictions…
Dropbox recently explained how it improved storage efficiency in Magic Pocket, the company's internal immutable blob store for storing user files at scale, by redesigning compaction strategies to...
DPoP closes a real gap in OAuth 2.0. Sender-constrained tokens are a meaningful upgrade over bearer tokens for any client that can implement them. But RFC 9449's silence on browser key storage...
When I was younger, the culture war (in my bubble) was about transactional versus non-transactional engines, Postgres versus MySQL (MyISAM). Surely, I preferred the transactional concept. Data...
Supabase Storage 更新了性能、安全性和可靠性,解决了并发上传导致的写入性能下降和路径遍历漏洞等问题。新算法使对象列表速度提升,深度分页速度提高至14.8倍。默认阻止直接SQL删除,确保文件不被意外删除,所有迁移现已可重复执行,减少支持请求。
As the electric grid grows more complex, battery energy storage systems are proliferating. Here’s how developers can succeed in a rapidly evolving market.
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