By Yogesh NagarurIntroductionIn Part 1 of this series, we shared how Netflix built the Ads Event pipeline and approached it as a system design problem: replacing fragmented pipelines with a...
AWS has introduced an enhanced Custom Event Bus for Amazon EventBridge, targeting a problem that often emerges when event-driven architectures move beyond a single team or AWS account: the event...
AWS recently announced enhanced custom event buses for Amazon EventBridge, allowing organizations to share a centralized bus across accounts with ordered delivery, simplified subscriber...
Cloudflare has launched K2 in public beta, a serverless event streaming service implementing a durable log on R2 object storage. Cloudflare states produce latency of about one second at p99; a...
亚马逊云科技中国区暂不支持Health Organizational View,多账号健康事件分散难管理。本文提出基于EventBridge跨账号转发的集中通知方案,采用Hub-Spoke架构聚合各账号Health Event,经InputTransformer格式化后由Lambda推送至飞书、钉钉、Teams、企业微信、Slack等平台。方案Serverless无固定成本,CloudFormation一键部署,支持灵活扩展与安全控制。
本文介绍SPDK事件框架核心概念:Reactor为每核事件循环线程,Event用于跨核消息投递,Poller在同线程反复轮询。强调消息传递优于锁,状态由单线程拥有。阻塞reactor回调会导致同核I/O停滞,排障时应先检查哪核循环停止。spdk_thread可独立嵌入其他循环,io_device/io_channel模式实现全局慢状态与每线程快路径分离。
Johannes Schickling explores how he moved beyond the traditional three-tier web stack to a local-first approach. He shares his experience transitioning from Prisma to developing Overtone—a music...
Event triggers fire on DDL and login events, not rows—and a buggy one can lock out every user, even superusers.
Windows PostgreSQL logs messages to the Event Log under a name you choose with `event_source`—but Windows won't understand that name until you register it with…
Event-driven architecture promises scalability, but in Java-based real-time systems the tradeoffs only surface in production. Drawing on a Java/Kafka contact center platform handling 80k BHCC...
事件溯源是一种数据库设计思路,记录每次状态变更的事件,而非当前状态。这种方法解决了传统CRUD模式下数据库“失忆”的问题,适用于需要审计追踪和复杂状态转换的场景。通过重放事件,可以回溯历史状态,支持数据分析和合规要求。尽管存储成本较高,但现代基础设施使得存储变得便宜,Event Sourcing可与CRUD共存,提升系统的灵活性和可追溯性。
本文介绍如何用 Perfetto SDK 的 Track Event 为系统 Trace 补充业务语义,解决系统 Trace 无法反映解码帧、加载场景、任务排队等业务信息的问题。内容按接入顺序展开:判断是否需要接入及接入层级,定义业务阶段字典与 backend,给出最小接入骨架、category 开关、与系统 Trace 合抓、跨线程 flow,最后说明如何控制写入量及 App 侧现场 Trace 协议。
本文介绍了红包的使用规则,包括红包的个数和金额最低限制,以及余额的使用说明。余额为虚拟货币,按1:1比例抵扣支付金额,但不能直接用于购买下载内容。
Chris Tacey-Green discusses the shift from synchronous commands to asynchronous events within highly regulated environments. He explains the critical role of Inbox and Outbox patterns in...
某金融交易平台引入事件溯源后,获得了审计日志和时间旅行能力,但事件流过大导致加载时间延长。团队需解决事件结构变更导致的反序列化问题。文章探讨了CQRS与事件溯源的结合,提供了事件存储设计到投影重建的实现路径,并强调事件版本化、快照策略及最终一致性处理的重要性。
Safari's release of version 26.2 in December introduced support for the scrollend event, completing its alignment with major browsers. This event signals when scrolling has definitively ended,...
文章总结为:我不是机器人。
Event-driven architecture helps banks decouple systems, scale services, and create clear activity trails. But it also introduces complexity, new failure modes, and operational challenges. Chris...
Postgres Ibiza (PGIBZ): An open source conference designed to bring together people with a love for PostgreSQL in Ibiza, a relaxed place for fresh and innovative discussions. An international...
perf_event子系统自Linux 2.6.31引入,成为性能监控的标准。其设计目标是通用性、高效性和灵活性,支持多种事件类型。通过统一接口监控硬件和软件事件,帮助开发者定位瓶颈和分析系统行为。核心功能为事件监控,用户可通过系统调用获取数据。perf工具利用该子系统进行性能分析,支持计数和采样模式,适用于多种监控需求。
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