嗨我正在尝试编写一个测试用例来实现故障转移支持activeMQ。在停止和重新启动时丢失消息Embedded ActiveMQ
下面是代码
val brokerA = createBroker("A")
brokerA.start
val failoverUrl = s"failover:(vm://BrokerA?create=false)" +
s"?randomize=false&maxReconnectAttempts=-1&reconnectSupported=true"
val cFactory = new ActiveMQConnectionFactory(failoverUrl)
val qConnection = getQueueConnection
val session = createQueueSession(qConnection)
private def totalReadMessagesCount(queueReceiver: QueueReceiver) = {
val messages = Iterator.continually(Option(queueReceiver.receive(2000))).takeWhile(_.isDefined).flatten.toSeq
messages.size
}
private def getReceiver = {
val queueConnection = getQueueConnection
queueConnection.start()
val queueSession = queueConnection.createQueueSession(false, Session.AUTO_ACKNOWLEDGE)
val queueReceiver = createQueueReceiver(queueSession, brokerA.getBrokerName)
queueReceiver
}
def getQueueConnection =cFactory.createQueueConnection("admin", "")
def createBroker(name:String) = {
val broker = new BrokerService()
val adaptor = new KahaDBPersistenceAdapter()
broker.setBrokerName("Broker" + name)
broker.addConnector(getBrokerUrl)
broker.setPersistent(true)
broker.setUseJmx(false)
broker.setUseShutdownHook(false)
broker
}
def getBrokerUrl = "tcp://localhost:0"
val queueReceiver: QueueReceiver = getReceiver
val messageCount = 500
(1 to messageCount) map {count =>
//Calling method to send message to ActiveMQ
if(count == 200){
brokerA.stop()
brokerA.waitUntilStopped()
brokerA.start(true)
}
}
val totalCount = totalReadMessagesCount(queueReceiver)
println(s"Read ${totalCount} messages")
assert(totalCount == messageCount)
我能够重新启动后和ActiveMQ重新连接,但totalCount
显示的是300而不是500,似乎之前的消息都将丢失。但是,当我在非嵌入模式下运行相同的场景。我能够获取所有消息。
请帮助我如何防止在重新启动嵌入式活动mq时丢失任何消息。
你需要有ActiveMQ的两(2)实例测试故障转移。故障转移意味着如果客户端无法与给定的服务器通话,它将尝试连接字符串中服务器列表中的下一个服务器。您的连接字符串中只有一台服务器。看到这里的文档:http://activemq.apache.org/failover-transport-reference.html – zloster