host
e31354dc58
fix(chv-muse-r12fix3-1): worker 开机时序竞态:Condition + path 触发,不赌重启预算(P6 缺口 ①)
R12 复测 2 钉死:剩下的 226 只点名 /home/chv/workspace——工作区由
cloud-final 的 chv-sync boot 克隆出来,晚于 multi-user.target 约
9 秒,worker 的 5 次启动预算在工作区出现前耗尽(5 台 VM 2 台
failed,手工 reset-failed + start 后立即 active,二进制无辜)。
修法三选一,选 (a)——让服务根本不在工作区出现前启动:
新单元 chv-gitea-worker.path(PathExists=/home/chv/workspace,
工作区一出现即触发启动)+ 服务加
ConditionPathExists=/home/chv/workspace(开机那次启动在命名空间
搭建之前干净跳过,不 226、不耗重启预算)。两者缺一不可:
Condition 本身绝不重试,没有 .path 它就是一次跳过、服务永远不
起;只有 .path 而无 Condition,开机那次启动仍会在命名空间搭建
时 226 撞上限速。WantedBy=multi-user.target 保留(is-enabled 仍
为 enabled),runcmd 只启动 .path 单元(cloud-final 时工作区尚
未 clone,直接 start 服务会 226);.path 进 buildinfo contents
与两处 lockfile 登记,P6 预检由三件扩为四件。
不用 (b) 放宽 StartLimit:放宽只是把竞态窗口拉大,wake 时间在
负载下已翻倍(R12 复测 2),预算仍可能耗尽,仍是时序赌博。
不用 (c) 把工作区创建提前到 tmpfiles-setup 之前:/home/chv 本身
07:23:40 才出现(cloud-init 建 chv 用户),晚于 tmpfiles-setup
(07:23:24);硬约束:绝不盲目补 tmpfiles 行。ExecStartPre 也不
行——命名空间搭建在它之前,救不了 226。
测试:WorkerUnitBootRaceTest 新增 8 项——Condition 在位、
StartLimit 未放宽(修法语义钉)、.path 触发配对(PathExists +
WantedBy、无 Unit= 覆盖)、服务 WantedBy 保留、build.sh 启用
.path + runcmd 只起 .path、绝无工作区 tmpfiles 行、buildinfo 与
lockfile 登记;BuildInfoContentsTest 的 P6 件加 .path;P2/P4 干
跑夹具一并拷入 .path。P6/P2/P4 三模块 174 项全过。
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