Consumer acknowledge take a long time when set blockOnAcknowledge to true

[touwang]

TRACE: Returning ClientMessage[messageID=2147483718, durable=true, address=com.clusterTestAddress,userID=null,properties=TypedProperties[{com.successfactors.hermes.MessageID=36e97ccd-ea32-4649-aae2-1407d72cfe04, _HQ_DUPL_ID=36e97ccd-ea32-4649-aae2-1407d72cfe04}]]

Mar 14, 2016 3:51:35 PM com.wright.hornetQ.HornetQTest$ConsumerThread run

INFO: ======================Receive message from TransportConfiguration(name=44a23286-e9b9-11e5-ad2b-71e3fa35717c, factory=org-hornetq-core-remoting-impl-netty-NettyConnectorFactory) ?port=5450&host=10-129-126-85=====================

Mar 14, 2016 3:51:35 PM com.wright.hornetQ.HornetQTest$ConsumerThread run

INFO: [Consumer11] message from queue[clusterTestQueue1Slow] = 11

Mar 14, 2016 3:51:35 PM org.hornetq.core.client.impl.ClientSessionImpl acknowledge

DEBUG: client ack messageID = 2147483718

Mar 14, 2016 3:51:35 PM org.hornetq.core.remoting.impl.netty.NettyConnection write

Mar 14, 2016 3:51:49 PM org.hornetq.core.protocol.core.impl.RemotingConnectionImpl bufferReceived

TRACE: handling packet PACKET(NullResponseMessage)[type=21, channelID=11, packetObject=NullResponseMessage]

Mar 14, 2016 3:51:49 PM com.wright.hornetQ.HornetQTest$ConsumerThread run

INFO: [Consumer11] sleep 1 seconds

Mar 14, 2016 3:51:50 PM com.wright.hornetQ.HornetQTest$ConsumerThread run

INFO: [Consumer11] handled 11 messages

Mar 14, 2016 3:51:50 PM org.hornetq.core.client.impl.ClientConsumerImpl receive

I have only one consumer processing message, from the log, it takes 14 seconds to receive the acknowledge response from server, how can I reduce the time and make it quicker?

I just set below two attributes:

    locator.setBlockOnAcknowledge(true);

    locator.setAckBatchSize(0);

All the other attributes are default, and I'm using Jboss-eap-6.2 as the HornetQ server.

[touwang]

Another strange thing, I start a HornetQ server on another machine, the issue doesn't exist. And when I ping the two machine, the response time doesn't have much difference.

And on my original test(on the slow acknowledge response server), the producer is very quick in sending messages. Why the sending message process is quick and consumer acknowledge message process is so slow while they are both blocking process?

[jbertram]

Why the sending message process is quick and consumer acknowledge message process is so slow while they are both blocking process?

I don't know.

Can you provide a reproducible test-case for this?

[touwang]

Thanks for your reply, it's only a normal test case, and I can't reproduce it now...I assume it's a network issue.

Will update this if the issue happens again.