Creating a morning report
The user is asking for a morning briefing in Chinese based on the prompt "早报：容错率大考，玩的就是心跳," which translates to "Morning report: fault tolerance big exam, it's all about the heartbeat." It seems they might want a daily article focused on technology and particularly on fault tolerance and operations. I'll consider sections like 今日要闻, 数据看点, and 风险预警, including content on chaos engineering and actionable checklists. I need to confirm their exact needs, but it feels proactive to draft it in that style.Drafting an engineering report
It seems this might be for an engineering team, and I want to include quick metrics, outages, a checklist, and tips. However, since I don’t know their organization well, I'll keep things generic. I could provide sample metrics as placeholders while being cautious about hallucinated news. It’s probably better to frame this as an internal ops daily report using fictional data. I’ll create a template structure with a focus on fault tolerance without claiming real external news—just suggestions!Crafting a morning report
I’m putting together a morning report titled "早报｜容错率大考，玩的就是心跳." It will include sections like 今日要点 with five bullet points about fault tolerance importance, heartbeat signals, retries, circuit breakers, and graceful degradation. I'll have a事故速览 section, maybe using a template saying "无严重告警."
For 指标雷达, I’ll showcase key metrics, including error budgets and p95/p99 stats. In 风险预警, I'll list the top five risks. I’ll also create an action checklist for the day. Finally, I’ll provide example configurations and offer to customize them for the user’s stack, framing everything in Chinese.Following report style guidelines
I need to adhere to specific style guidelines: using plain text and bullets, while keeping headers optional with asterisks for emphasis. I also need to ensure that lines are concise to make the content easy to read. It’s important to create a structured layout that neatly organizes all the information. Alright, let's get to producing the report based on these style requirements! I think this will help maintain clarity and focus for the user.
早报｜容错率大考，玩的就是心跳
今日要点
- 心跳不是可用性，掌握“心跳正常但服务不可用”的差异：liveness/readiness/startup 分层探针
- 重试是双刃剑：指数退避+抖动，配合熔断、限流、超时，避免重试风暴
- 幂等是容错底座：写操作带幂等键，消息处理去重，确保“最多一次/至少一次”一致性策略明确
- 降级先于宕机：读降级、缓存兜底、功能开关灰度，优先保核心路径
- 错误预算是指挥棒：SLO 牵引发布节奏，燃尽加速时立刻收紧变更窗口
指标雷达（今日关注）
- 错误预算燃尽率：
X%/日（阈值 > 2% 告警） - 失败率：
5xx 比例、超时占比、熔断开启次数 - p95/p99 延迟：核心接口
GET /api/* - 重试放大率：
总请求/首发请求比 > 1.2 需排查 - 队列健康：
堆积深度、死信比、消费延迟
- 错误预算燃尽率：
风险预警
- 重试风暴：下游慢导致级联超时，观察连接池耗尽与CPU尖峰
- 心跳漂移：探针间隔与 GC/长尾 IO 冲突，误判杀进程
- 缓存雪崩：热点 Key 同时失效，启用随机 TTL 与请求合并
- 数据重复写：补偿/重放导致脏数据，缺幂等键
- 灰度滚动：未设并发上限+就绪探针太宽松，放量过快
今日行动清单（30 分钟版）
- 核查超时/重试/熔断“铁三角”：
timeout < deadline < SLA，重试≤2，启用抖动 - 为写接口加幂等键校验；消息消费者确认幂等落盘点
- 检查 k8s 探针：readiness 不等同 liveness；启动慢的服务加 startupProbe
- 为下游设置舱壁/限流：每实例并发上限与队列长度
- 配置核心接口降级开关与静态兜底页；演练切换一次
- 预定一次混沌演练：下游 50% 延迟+失败，验证退化路径
- 核查超时/重试/熔断“铁三角”：
小知识卡
- 心跳 vs 健康检查：心跳只表连通，健康需覆盖依赖/资源/自测
- 容错率≠可用性：容错吸收故障的能力；可用性反映最终用户体验
- 错误预算：
1 - SLO，当日燃尽快于阈值时暂停发布、改配额与变更策略
配置片段示例（指数退避+抖动，避免同步雪崩）
import random, time def retry(op, max_attempts=3, base=0.1, cap=2.0): for i in range(max_attempts): try: return op() except Exception: if i == max_attempts - 1: raise sleep = min(cap, base * (2 i)) time.sleep(sleep * (0.5 + random.random())) # 抖动 0.5x~1.5x
需要我把这版早报替换成你们团队的真实指标/服务名吗？说下技术栈（K8s/VM、语言、网关/服务框架、队列/缓存/存储），我来按你们的探针与告警维度填充。