I have finished a test with two brokers connected to each other using non-duplex connection. Broker A have a network connector to broker B and vice versa. But I still loose message during the transfer when I unplug the network cable, this is exactly the same as I using only one duplex network connector from broker B to broker A.
This is really unacceptable, and I wish you can solve it ASAP. rajdavies wrote: > > This is currently only the case if you are using duplex connections - > or the message was originally sent using async send from the client > (e.g. non-persistent) - as the network tries to maintain the same QOS > as used by the original producer > > cheers, > > Rob > > On 10 Jul 2008, at 10:34, Bryan.Shaw wrote: > >> >> It is sad that the activemq message sending is default to sync send. >> So this issue is still open. >> >> Please provide help! >> >> >> Bryan.Shaw wrote: >>> >>> I discovered that the message transfer between network of brokers is >>> handled by DemandForwardingBridgeSupport class and there is some >>> comment >>> on async send mode will be assumed between brokers if the producer >>> send >>> the message to the queue using async send mode which will cause small >>> probability of message loss. >>> >>> I am now testing the sync send mode on the producer side, hope this >>> can >>> resolve my problem. >>> >>> >>> Bryan.Shaw wrote: >>>> >>>> We have a distributed architecture with two brokers connnected to >>>> each >>>> other through WAN. >>>> >>>> We configured it using network of brokers. >>>> One producer sends messages to a distributed queue named "aqueue" on >>>> broker A. >>>> One consumer consume messages from the queue "aqueue" on broker B. >>>> >>>> I thought activemq is responsible for the reliability of the message >>>> transfer. >>>> Which means the when message are sent to aqueue at broker A, the >>>> messages >>>> are first store on broker A's persistent store and then forwarded to >>>> broker B's persistent store and afterwards consumed by the >>>> consumer on >>>> broker B. If network between these two brokers are not stable, it is >>>> activemq's job to ensure the message is delivered and delivered only >>>> once. >>>> >>>> But in real production environment, we found message loss when >>>> network >>>> between the two brokers is down. >>>> >>>> I need proffesional help to address this issue. Is this a bug of >>>> activemq >>>> or a configuration issue? >>>> Can anybody give me some advice to avoid this kind of message loss? >>>> >>> >>> >> >> -- >> View this message in context: >> http://www.nabble.com/Help-needed.-About-message-loss-in-distributed-queue-in-network-of-brokers-environment-tp18377630p18379174.html >> Sent from the ActiveMQ - User mailing list archive at Nabble.com. >> > > > -- View this message in context: http://www.nabble.com/Help-needed.-About-message-loss-in-distributed-queue-in-network-of-brokers-environment-tp18377630p18505292.html Sent from the ActiveMQ - User mailing list archive at Nabble.com.
