Question

我无法弄清楚为什么以下请求无法在Marathon中开始健康检查。容器已启动，但状态仍为Deploying

{
  "id": "bridged-webapp",
  "cmd": "python3 -m http.server 8080",
  "cpus": 0.1,
  "mem": 64.0,
  "instances": 1,
  "container": {
     "type": "DOCKER",
     "docker": {
       "image": "python:3",
        "network": "BRIDGE",
        "portMappings": [
           { 
             "containerPort": 8080,
             "hostPort": 31313,
             "servicePort": 9000,
             "protocol": "tcp"
           }
        ]
      }
    },
  "healthChecks": [
    {
        "protocol": "COMMAND",
        "command": { "value": "echo 0" },
        "maxConsecutiveFailures": 3
    }
   ]
}

当我查看Marathon的日志时，它基本上只是说健康检查已经开始，但仅此而已：

Aug 28 16:52:33 cnode2 marathon[11495]: [2015-08-28 16:52:33,603] INFO   Adding health check for app [/bridged-webapp] and version [2015-08-28T16:52:33.500Z]: [HealthCheck(Some(/),COMMAND,0,Some(Command(echo 0)),300 seconds,60 seconds,20 seconds,3,false)] (mesosphere.marathon.health.MarathonHealthCheckManager$$EnhancerByGuice$$d8828133:76)
Aug 28 16:52:33 cnode2 marathon[11495]: [INFO] [08/28/2015 16:52:33.604] [marathon-akka.actor.default-dispatcher-693] [akka://marathon/user/$kg] Starting health check actor for app [/bridged-webapp] and healthCheck [HealthCheck(Some(/),COMMAND,0,Some(Command(echo 0)),300 seconds,60 seconds,20 seconds,3,false)]
Aug 28 16:52:33 cnode2 marathon[11495]: [INFO] [08/28/2015 16:52:33.627] [marathon-akka.actor.default-dispatcher-694] [akka://marathon/user/MarathonScheduler/$a/DeploymentManager/4f3a1a8e-8934-441a-9c55-b7cf332893e2/$a] Successfully started 0 instances of /bridged-webapp
Aug 28 16:52:37 cnode2 marathon[11495]: [2015-08-28 16:52:37,080] INFO Received status update for task bridged-webapp.2f4399a5-4da5-11e5-b538-080027bb2503: TASK_RUNNING () (mesosphere.marathon.MarathonScheduler$$EnhancerByGuice$$b7a64e04:100)

在UI中，作业运行状况为灰色，表示运行状况检查未知。

真正奇怪的是，如果我运行相同的工作，但没有容器，它可以工作。

有什么想法吗？

Answer 1

更新：事实证明命令运行状况检查不与docker执行器一起工作....一位同事已经为此打开了一个问题： https://github.com/mesosphere/marathon/issues/2140 我们至少会尽快更新文档。

感谢您发现这一点！

Answer 2

看起来在mesos 0.27.0中的行为已经改变。现在click在Docker容器中执行。我没有在任何地方看到它。

使用Marathon Health Check与命令协议和容器时的奇怪行为

2 个答案: