tomcat/blazeds/activemq 분리 문제

Question

우리는 Tomcat/Blazeds/ActiveMQ 스택에서 연결이 끊어지고 있습니다. Blazeds StreamingamfChannel은 0의 기본 유휴 시간-시간으로 구성되어 있지만 약 30 분의 유휴 시간이 지나면 타임 아웃을하는 것 같습니다 (로그 참조). 클라이언트는 그 기간 동안 요청을하지 않으며 ActiveMQ 주제에서 메시지를 전달하지 않습니다.

우리는 ActiveMQ 및 Blazeds의 디버그 로깅을 활성화했으며 Blazeds가 소비자를 제거하고 있음을 알 수 있습니다. 불행히도 분리 메시지 전에 로그 메시지가 없으므로 Blazeds 내에서 호출 될 때 실제로 추적 할 수 없습니다.

다른 사람이 이것을 경험 했습니까? 아니면 누구나 해결책을 제공 할 수 있습니까?

* ActiveMQ log *

11 Mar 2009 16:25:47,405 [ActiveMQ Transport: tcp:///127.0.0.1:49971] DEBUG activemq.broker.region.AbstractRegion  - Removing consumer: ID:TMSNEC02.traficon.int-52586-1236783284912-2:3:1:1
11 Mar 2009 16:25:47,406 [ActiveMQ Transport: tcp:///127.0.0.1:49971] DEBUG activemq.broker.region.AbstractRegion  - Removing consumer: ID:TMSNEC02.traficon.int-52586-1236783284912-2:3:-1:1
11 Mar 2009 16:25:47,407 [ContainerBackgroundProcessor[StandardEngine[Catalina]]] DEBUG activemq.transport.tcp.TcpTransport  - Stopping transport tcp://localhost/127.0.0.1:61616
11 Mar 2009 16:25:47,408 [ActiveMQ Transport Stopper: /127.0.0.1:49971] DEBUG apache.activemq.broker.TransportConnection  - Stopping connection: /127.0.0.1:49971
11 Mar 2009 16:25:47,409 [ActiveMQ Transport Stopper: /127.0.0.1:49971] DEBUG activemq.transport.tcp.TcpTransport  - Stopping transport tcp:///127.0.0.1:49971
11 Mar 2009 16:25:47,413 [ActiveMQ Transport Stopper: /127.0.0.1:49971] DEBUG apache.activemq.broker.TransportConnection  - Stopped connection: /127.0.0.1:49971
11 Mar 2009 16:25:47,417 [ActiveMQ Transport Stopper: /127.0.0.1:49971] DEBUG apache.activemq.broker.TransportConnection  - Connection Stopped: /127.0.0.1:49971
11 Mar 2009 16:25:47,427 [ActiveMQ Transport: tcp:///127.0.0.1:50680] DEBUG activemq.broker.region.AbstractRegion  - Removing consumer: ID:TMSNEC02.traficon.int-52586-1236783284912-2:4:1:1
11 Mar 2009 16:25:47,430 [ActiveMQ Transport: tcp:///127.0.0.1:50680] DEBUG activemq.broker.region.AbstractRegion  - Removing consumer: ID:TMSNEC02.traficon.int-52586-1236783284912-2:4:-1:1
11 Mar 2009 16:25:47,431 [ContainerBackgroundProcessor[StandardEngine[Catalina]]] DEBUG activemq.transport.tcp.TcpTransport  - Stopping transport tcp://localhost/127.0.0.1:61616
11 Mar 2009 16:25:47,431 [ActiveMQ Transport Stopper: /127.0.0.1:50680] DEBUG apache.activemq.broker.TransportConnection  - Stopping connection: /127.0.0.1:50680
11 Mar 2009 16:25:47,431 [ActiveMQ Transport Stopper: /127.0.0.1:50680] DEBUG activemq.transport.tcp.TcpTransport  - Stopping transport tcp:///127.0.0.1:50680
11 Mar 2009 16:25:47,435 [ActiveMQ Transport Stopper: /127.0.0.1:50680] DEBUG apache.activemq.broker.TransportConnection  - Stopped connection: /127.0.0.1:50680
11 Mar 2009 16:25:47,438 [ActiveMQ Transport Stopper: /127.0.0.1:50680] DEBUG apache.activemq.broker.TransportConnection  - Connection Stopped: /127.0.0.1:50680
11 Mar 2009 16:25:47,439 [ActiveMQ Transport: tcp:///127.0.0.1:50681] DEBUG activemq.broker.region.AbstractRegion  - Removing consumer: ID:TMSNEC02.traficon.int-52586-1236783284912-2:5:1:1
11 Mar 2009 16:25:47,439 [ActiveMQ Transport: tcp:///127.0.0.1:50681] DEBUG activemq.broker.region.AbstractRegion  - Removing consumer: ID:TMSNEC02.traficon.int-52586-1236783284912-2:5:-1:1
11 Mar 2009 16:25:47,440 [ContainerBackgroundProcessor[StandardEngine[Catalina]]] DEBUG activemq.transport.tcp.TcpTransport  - Stopping transport tcp://localhost/127.0.0.1:61616
11 Mar 2009 16:25:47,440 [ActiveMQ Transport Stopper: /127.0.0.1:50681] DEBUG apache.activemq.broker.TransportConnection  - Stopping connection: /127.0.0.1:50681
11 Mar 2009 16:25:47,441 [ActiveMQ Transport Stopper: /127.0.0.1:50681] DEBUG activemq.transport.tcp.TcpTransport  - Stopping transport tcp:///127.0.0.1:50681
11 Mar 2009 16:25:47,441 [ActiveMQ Transport Stopper: /127.0.0.1:50681] DEBUG apache.activemq.broker.TransportConnection  - Stopped connection: /127.0.0.1:50681
11 Mar 2009 16:25:47,441 [ActiveMQ Transport Stopper: /127.0.0.1:50681] DEBUG apache.activemq.broker.TransportConnection  - Connection Stopped: /127.0.0.1:50681

* Blazeds log *

[BlazeDS]03/11/2009 15:55:39.776 [DEBUG] [Endpoint.AMF] Serializing AMF/HTTP response
Version: 3
  (Message #0 targetURI=/4/onResult, responseURI=)
    (Externalizable Object #0 'DSK')
      (Externalizable Object #1 'flex.messaging.io.ArrayCollection')
        (Array #2)
1.236783339776E12
(Byte Array #3, Length 16)
(Byte Array #4, Length 16)
(Byte Array #5, Length 16)

[BlazeDS]03/11/2009 16:25:47.391 [INFO] [Service.Message.JMS] JMS consumer for JMS destination 'java:comp/env/eventMessagesFlexTopic' is being removed from the JMS adapter
[BlazeDS]03/11/2009 16:25:47.392 [INFO] [Service.Message.JMS] JMS consumer for JMS destination 'java:comp/env/eventMessagesFlexTopic' is stopping.
[BlazeDS]03/11/2009 16:25:47.417 [DEBUG] [Client.MessageClient] MessageClient with clientId '7A98D7BC-F0B3-922C-A968-BE0BFB7D9080' for destination 'eventMessageFeed' has been invalidated.
[BlazeDS]03/11/2009 16:25:47.419 [INFO] [Service.Message.JMS] JMS consumer for JMS destination 'java:comp/env/detectorsFlexTopic' is being removed from the JMS adapter
[BlazeDS]03/11/2009 16:25:47.423 [INFO] [Service.Message.JMS] JMS consumer for JMS destination 'java:comp/env/detectorsFlexTopic' is stopping.
[BlazeDS]03/11/2009 16:25:47.435 [DEBUG] [Client.MessageClient] MessageClient with clientId '7A9BC826-2199-C772-0A1B-FE6FAE9F7402' for destination 'detectorsFeed' has been invalidated.
[BlazeDS]03/11/2009 16:25:47.438 [INFO] [Service.Message.JMS] JMS consumer for JMS destination 'java:comp/env/scenariosFlexTopic' is being removed from the JMS adapter
[BlazeDS]03/11/2009 16:25:47.438 [INFO] [Service.Message.JMS] JMS consumer for JMS destination 'java:comp/env/scenariosFlexTopic' is stopping.
[BlazeDS]03/11/2009 16:25:47.440 [DEBUG] [Client.MessageClient] MessageClient with clientId '7A9BCE40-A0DA-18D6-9FA1-6D6AA2088256' for destination 'scenarioMessageFeed' has been invalidated.
[BlazeDS]03/11/2009 16:25:47.441 [DEBUG] [Client.FlexClient] FlexClient with id '7A95FDE9-0091-B1CD-3660-D8E9CD6CD3E6' has been invalidated.
[BlazeDS]03/11/2009 16:25:47.441 [DEBUG] [Endpoint.StreamingAMF] Endpoint with id 'my-streaming-amf' is streaming message: Flex Message (flex.messaging.messages.CommandMessage)
operation = disconnect
clientId = null
correlationId = null
destination = null
messageId = 7ED1C45A-10A7-BFBB-E24E-94B9C03047EE
timestamp = 1236785147441
timeToLive = 0
body = null
[BlazeDS]03/11/2009 16:25:47.441 [DEBUG] [Endpoint.FlexSession] FlexSession with id '71A76CA22AC435285736F6DB0E38AC11' for an Http-based client connection has been invalidated.
[BlazeDS]03/11/2009 16:25:47.444 [DEBUG] [Client.FlexClient] FlexClient with id '7A941468-80E5-8343-A2AE-A3AFFA135734' has been invalidated.
[BlazeDS]03/11/2009 16:25:47.444 [DEBUG] [Endpoint.FlexSession] FlexSession with id '1238AA40EF8B016F3942C6D6BDBA29B9' for an Http-based client connection has been invalidated.
[BlazeDS]03/11/2009 16:25:47.444 [DEBUG] [Endpoint.StreamingAMF] Streaming thread 'http-8080-1' for endpoint with id 'my-streaming-amf' is releasing connection and returning to the request handler pool.
[BlazeDS]03/11/2009 16:25:47.444 [INFO] [Endpoint.FlexSession] Number of streaming clients for FlexSession with id '71A76CA22AC435285736F6DB0E38AC11' is 0.
[BlazeDS]03/11/2009 16:25:47.444 [DEBUG] [Endpoint.StreamingAMF] Number of streaming clients for endpoint with id 'my-streaming-amf' is 0.
[BlazeDS]03/11/2009 16:25:47.489 [DEBUG] [Endpoint.FlexSession] FlexSession created with id 'E5BCC7617F3937139CCAD377EEB85D45' for an Http-based client connection.
[BlazeDS]03/11/2009 16:25:47.489 [INFO] [Endpoint.General] Channel endpoint my-streaming-amf received request.

Answer 1

우리는 30 초마다 클라이언트에서 서버로 유지하는 메시지를 보내면서 이것을 해결했습니다. 분명히 Tomcat의 기본 세션 타임 아웃을 따른 이후로 타이핑을 한 것은 Flexsession이었다. Keep-alive 메시지는 낮은 간격으로 전송되므로 세션 시간 초과를 서버의 낮은 값으로 설정하여 서버에서 메모리 소비자가 향상되었습니다.

Answer 2

분리 이벤트에 응답하고 필요한 경우 다시 연결할 수 있습니다.