Commit 5e823f5
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修复:自更新每次都被静默回滚,前端卡在「正在重启并加载新版本…」
RollbackIfStale 跑在启动早期,而清除待验证标记的 MarkHealthy 要等端口监听
成功之后才执行。于是「标记还在」这个判据永远成立 —— 新版本刚起来的那一刻
就被判定成「上次更新后没能启动」,二进制被换回旧版再重启一次。
结果是每一次自更新都悄悄回退。前端轮询 /api/version 拿到的一直是旧版本号,
永远等不到目标版本,转满 60 秒才超时。用户看到的是「更新卡住了」,
实际上是更新成功之后又被自己撤销了。
修法:待验证标记里记「带着这个标记启动过几次」。
0 次 = 新版本头一回启动 → 放行,让它自己跑到 MarkHealthy 把标记删掉
≥1 次 = 上一回带着标记启动过却没撑到 MarkHealthy → 这才是真的起不来,回滚
老版本写的标记内容是 "1",正好落在「已经启动过一次」这一档,升级上来语义正确。
顺带去掉健康信号那个 3 秒 sleep:改成自己 net.Listen,拿到 listener 就是
确凿的启动成功信号。原来靠「睡几秒应该起来了」猜,猜早了端口还没占上就
宣布健康,猜晚了这几秒内被重启一次会被误判成启动失败。
回归测试补了 4 个,覆盖首次启动放行、第二次才回滚、成功路径不留残留、
以及认得老版本的标记。把修复临时改回旧逻辑验证过:前三个会红。
受影响版本 v0.1.2 / v0.1.3 的用户没法用在线更新升上来(点了会转到超时),
需要手动替换一次二进制;换到这一版之后在线更新就正常了。1 parent df84ed6 commit 5e823f5
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