https://eventboat.dev/zh/docs/introduction/Recent content in 介绍 on EventboatHugozh-CNSat, 05 Sep 2026 01:05:51 +0800https://eventboat.dev/zh/docs/introduction/overview/Mon, 01 Jan 0001 00:00:00 +0000https://eventboat.dev/zh/docs/introduction/overview/<p>Eventboat 通过有向无环图（DAG）路由事件——从<strong>源</strong>（Kafka、HTTP、cron、SQL、文件） 到<strong>汇</strong>（Kafka、HTTP、文件），保证 at-least-once 投递、死信可查可回放。</p>https://eventboat.dev/zh/docs/introduction/architecture/Mon, 01 Jan 0001 00:00:00 +0000https://eventboat.dev/zh/docs/introduction/architecture/<h2 id="三层模型">三层模型 </h2> <div class="td-code td-code--untitled" id="td-code-7600bf6f-fence-0" data-td-code data-td-code-auto-id data-td-language="" data-td-line-count="3"> <div class="td-code__viewport" id="td-code-7600bf6f-fence-0-viewport" data-td-code-viewport><pre tabindex="0"><code>YAML (+overlay) → Config（类型化）→ Static IR → Runtime Engine ↓ Source → Transform → Sink 插件</code></pre></div> </div> <ul> <li><strong>Config 层</strong>：YAML 解析、严格 schema 校验、变量替换</li> <li><strong>Static IR</strong>：校验后的 DAG + 预编译 CEL 程序 + Starlark 程序 + schema</li> <li><strong>Runtime</strong>：spool + settle + checkpoint 引擎，只消费 IR</li> </ul> <h2 id="可靠性模型">可靠性模型 </h2> <div class="td-code td-code--untitled" id="td-code-7600bf6f-fence-1" data-td-code data-td-code-auto-id data-td-language="" data-td-line-count="3"> <div class="td-code__viewport" id="td-code-7600bf6f-fence-1-viewport" data-td-code-viewport><pre tabindex="0"><code>source → [spool: 追加式持久队列] → 内存 DAG → sinks │ │ └── checkpoint ←── settle 跟踪 ←── 终态</code></pre></div> </div> <ul> <li><strong>Spool</strong>：每条消息先落 SQLite 再进 DAG（不变量 1）</li> <li><strong>Settle</strong>：消息的全部分支到达终态即 settle</li> <li><strong>Checkpoint</strong>：只推进已 settle 的连续前缀（不变量 2）</li> <li><strong>崩溃恢复</strong>：kill -9 → 重启 → 从 checkpoint 重放，绝不丢（不变量 3）</li> <li><strong>死信</strong>：重试耗尽 → 死信库（可查询 + 可回放）</li> </ul> <h2 id="七条不变量测试">七条不变量测试 </h2> <p>每条都有专属测试，CI 必须通过：</p>