NServiceBus：在saga超时后，存储队列中的消息数量不断增加

首先是关于设置的一些信息：

• 我们正在运行NServiceBus v4.6.3
• 分发服务器正在具有群集队列的群集计算机上运行
• TimeoutManager在辅助服务器上禁用，在分发服务器上启用

我们正在经历的

• 处理Saga超时时，存储队列中的消息数将增加一条
• 消息延迟时，存储队列中的消息数将增加一个

我们知道什么

超时消息直接传递到特定的本地队列（在请求超时的服务器上），而不是集群队列。这绕过了常规路径，该路径涉及从存储队列中删除消息并在工作队列上传递目标队列。工作进程不知道这一点，并报告在处理超时消息后，它已准备好处理新消息

此行为的原因是存储在TimeoutData中的目标队列被设置为工作队列上的本地队列，而不是集群队列。以下是一个例子：

{
  "Destination": {
    "Queue": "DemoService",
    "Machine": "STAGESVC04"
  },
  "SagaId": "40bf1976-dab0-48a3-8e20-a39d00b59bb9",
  "State": "PD94bWwgdmVyc2lvbj0iMS4wIiA/Pg0KPE1lc3NhZ2VzIHhtbG5zOnhzaT0iaHR0cDovL3d3dy53My5vcmcvMjAwMS9YTUxTY2hlbWEtaW5zdGFuY2UiIHhtbG5zOnhzZD0iaHR0cDovL3d3dy53My5vcmcvMjAwMS9YTUxTY2hlbWEiIHhtbG5zPSJodHRwOi8vdGVtcHVyaS5uZXQvUmlrc3RvdG8uU2VydmljZS5CZXR0aW5nLk5TZXJ2aWNlQnVzSGFuZGxlcnMuU2FnYXMuVGVzdFNhZ2EiPgo8SVRoZVRpbWVvdXQ+CjwvSVRoZVRpbWVvdXQ+CjwvTWVzc2FnZXM+DQo=",
  "Time": "2014-09-05T09:02:14.2110980Z",
  "CorrelationId": "60558fe4-7111-4fe3-a4ff-a39d00b5c060\\0",
  "OwningTimeoutManager": "DemoService",
  "Headers": {
    "NServiceBus.MessageId": "60558fe4-7111-4fe3-a4ff-a39d00b5c060",
    "NServiceBus.CorrelationId": "60558fe4-7111-4fe3-a4ff-a39d00b5c060",
    "NServiceBus.OriginatingEndpoint": "DemoService",
    "$.diagnostics.originating.hostid": "23d0f908b1691ba8111e8ac282989a3d",
    "NServiceBus.MessageIntent": "Send",
    "NServiceBus.Version": "4.6.3",
    "NServiceBus.TimeSent": "2014-09-05 09:01:44:211098 Z",
    "NServiceBus.OriginatingMachine": "STAGESVC04",
    "NServiceBus.SagaId": "40bf1976-dab0-48a3-8e20-a39d00b59bb9",
    "NServiceBus.IsSagaTimeoutMessage": "True",
    "NServiceBus.SagaType": "DemoService.NServiceBusHandlers.Sagas.TestSaga.TestSaga, DemoService.NServiceBusHandlers, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null",
    "NServiceBus.OriginatingSagaId": "40bf1976-dab0-48a3-8e20-a39d00b59bb9",
    "NServiceBus.OriginatingSagaType": "DemoService.NServiceBusHandlers.Sagas.TestSaga.TestSaga, DemoService.NServiceBusHandlers, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null",
    "NServiceBus.ContentType": "text/xml",
    "NServiceBus.EnclosedMessageTypes": "DemoService.NServiceBusHandlers.Sagas.TestSaga.ITheTimeout, DemoService.NServiceBusHandlers, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null",
    "NServiceBus.RelatedTo": "232aa1a9-dea2-4d98-9251-a39d00b59bc7",
    "NServiceBus.ConversationId": "4661130d-a961-4b1d-abda-a39d00b59beb",
    "WinIdName": "",
    "CorrId": "60558fe4-7111-4fe3-a4ff-a39d00b5c060\\0",
    "NServiceBus.IsDeferredMessage": "True",
    "NServiceBus.Temporary.DelayDeliveryWith": "00:00:30",
    "NServiceBus.Timeout.Expire": "2014-09-05 09:02:14:211098 Z",
    "NServiceBus.Timeout.RouteExpiredTimeoutTo": "DemoService@STAGESVC04",
    "NServiceBus.Timeout.ReplyToAddress": "DemoService@STAGEMSMQ01"
  }
}

---

我不确定我们正在经历的是NServiceBus中的错误或配置错误。有人知道吗？

我已经在NServiceBus上注册了这个问题，他们已经确认它是一个bug

请参见

这是在中修复的