You're using a non-durable subscription on your topic, aren't you? That's your (primary) problem: you're losing messages around the time of the failover because your consumer isn't subscribed during that period of time.
It's possible that the broker is actually losing a few messages, especially if you're using async sends as your primary configuration, but you're losing 1000 messages because you're using a configuration where that's the expected behavior. Once you get that fixed, if you're still seeing message loss, we can try to help dig deeper into it. Also, you referenced reducing a timeout to 1 ms. Which timeout was that? Tim On Mon, Dec 10, 2018, 2:51 AM PedroRP <pedro.rami...@techonrails.com wrote: > Hi Tim! > > My sender app is sending text messages with the text: "Message (sequence)". > The sender's log is showing the message after send it. This is the log: > > Message 6291 > Message 6292 > Message 6293 > Message 6294 > Message 6295 > 2018-12-10 10:37:43.175 WARN 8732 --- [.45:61626@55241] > o.a.a.t.failover.FailoverTransport : Transport > (tcp://172.18.13.45:61626) failed , attempting to automatically reconnect: > {} > > java.io.EOFException: null > at java.io.DataInputStream.readInt(DataInputStream.java:392) > ~[na:1.8.0_181] > at > > org.apache.activemq.openwire.OpenWireFormat.unmarshal(OpenWireFormat.java:268) > ~[activemq-all-5.15.0.jar:5.15.0] > at > > org.apache.activemq.transport.tcp.TcpTransport.readCommand(TcpTransport.java:240) > ~[activemq-all-5.15.0.jar:5.15.0] > at > org.apache.activemq.transport.tcp.TcpTransport.doRun(TcpTransport.java:232) > ~[activemq-all-5.15.0.jar:5.15.0] > at > org.apache.activemq.transport.tcp.TcpTransport.run(TcpTransport.java:215) > ~[activemq-all-5.15.0.jar:5.15.0] > at java.lang.Thread.run(Thread.java:748) [na:1.8.0_181] > > 2018-12-10 10:37:50.567 INFO 8732 --- [ActiveMQ Task-1] > o.a.a.t.failover.FailoverTransport : Successfully reconnected to > tcp://172.18.13.45:61616 > Message 6296 > Message 6297 > Message 6298 > Message 6299 > > The consumer's log is the following: > > TopicMessageConsumer Received message [ Message 6292 ] > TopicMessageConsumer Received message [ Message 6293 ] > TopicMessageConsumer Received message [ Message 6294 ] > TopicMessageConsumer Received message [ Message 6295 ] > 2018-12-10 10:37:43.175 WARN 6360 --- [.45:61626@55240] > o.a.a.t.failover.FailoverTransport : Transport > (tcp://172.18.13.45:61626) failed , attempting to automatically reconnect: > {} > > java.io.EOFException: null > at java.io.DataInputStream.readInt(DataInputStream.java:392) > ~[na:1.8.0_181] > at > > org.apache.activemq.openwire.OpenWireFormat.unmarshal(OpenWireFormat.java:268) > ~[activemq-all-5.15.0.jar:5.15.0] > at > > org.apache.activemq.transport.tcp.TcpTransport.readCommand(TcpTransport.java:240) > ~[activemq-all-5.15.0.jar:5.15.0] > at > org.apache.activemq.transport.tcp.TcpTransport.doRun(TcpTransport.java:232) > ~[activemq-all-5.15.0.jar:5.15.0] > at > org.apache.activemq.transport.tcp.TcpTransport.run(TcpTransport.java:215) > ~[activemq-all-5.15.0.jar:5.15.0] > at java.lang.Thread.run(Thread.java:748) [na:1.8.0_181] > > 2018-12-10 10:37:43.175 WARN 6360 --- [.45:61626@55242] > o.a.a.t.failover.FailoverTransport : Transport > (tcp://172.18.13.45:61626) failed , attempting to automatically reconnect: > {} > > java.io.EOFException: null > at java.io.DataInputStream.readInt(DataInputStream.java:392) > ~[na:1.8.0_181] > at > > org.apache.activemq.openwire.OpenWireFormat.unmarshal(OpenWireFormat.java:268) > ~[activemq-all-5.15.0.jar:5.15.0] > at > > org.apache.activemq.transport.tcp.TcpTransport.readCommand(TcpTransport.java:240) > ~[activemq-all-5.15.0.jar:5.15.0] > at > org.apache.activemq.transport.tcp.TcpTransport.doRun(TcpTransport.java:232) > ~[activemq-all-5.15.0.jar:5.15.0] > at > org.apache.activemq.transport.tcp.TcpTransport.run(TcpTransport.java:215) > ~[activemq-all-5.15.0.jar:5.15.0] > at java.lang.Thread.run(Thread.java:748) [na:1.8.0_181] > > 2018-12-10 10:37:50.533 INFO 6360 --- [ActiveMQ Task-6] > o.a.a.t.failover.FailoverTransport : Successfully reconnected to > tcp://172.18.13.45:61616 > 2018-12-10 10:37:51.586 INFO 6360 --- [ActiveMQ Task-6] > o.a.a.t.failover.FailoverTransport : Successfully reconnected to > tcp://172.18.13.45:61616 > TopicMessageConsumer Received message [ Message 7290 ] > TopicMessageConsumer Received message [ Message 7291 ] > TopicMessageConsumer Received message [ Message 7292 ] > TopicMessageConsumer Received message [ Message 7293 ] > > I'm killing the broker ungracefully (kill -9). > > I test the app with async and sync sending. Both cases with the same > result. > > The above logs are using the following url to connect to the brokers: > > > failover:(tcp://broker1:61616,tcp://broker2:61626)?jms.useAsyncSend=false&trackMessages=true&timeout=1 > > Thanks! > > > > -- > Sent from: > http://activemq.2283324.n4.nabble.com/ActiveMQ-User-f2341805.html >