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Posted to users@activemq.apache.org by SuoNayi <su...@163.com> on 2013/07/08 11:53:34 UTC
Messages are out of order accidentally
Hi,We are using Master/slave topology with shared database and the version is 5.5.0.
Unfortunately the problem that messages get out of order happens accidentally and
it breaks down our application since we really depend on message order mechanism.
We're using Virtual Topic for publishing messages to different data centers across country.
Each data center has one or more exclusive subscribers.When the problem happens,
some data centers(3 data centers last time) are seeing out-of-order message while the others are ok.
Since I know that concurrent consumers can make messages out of order when they get restarted
while obviously we are not this case.
One of problem data centers only has one subscriber!That's why I think it must be related with broker.
I have also searched JIRA for more related reports but without luck.
Any ideas or pointers?
Thanks,
SuoNayi
Re:Re: Re:Messages are out of order accidentally
Posted by SuoNayi <su...@163.com>.
Thank for your info.I suspect it's related with transaction send.
We send 200 messages in a transaction for performance gain,
there is a old related jira,https://issues.apache.org/jira/browse/AMQ-2594.
I will take a closer look at this.
Thanks,
SuoNayi
At 2013-07-11 17:03:26,guerra <jg...@gmail.com> wrote:
>I had the same problem on 5.5.1 for a single consumer. For some weird reason
>messages poked into the broker within ~200ms or less, they came out in
>different order as they came in. I had to fix it from the producer side
>delaying ordered messages be sent one per second. Since that, the consumer
>receives the messages in order as they should and it working nicely since
>more than a year.
>I made some test on 5.6.0 and it seems okay, but I can not guarantee that
>because a very l imitated text fixtures were performed.
>
>
>
>
>--
>View this message in context: http://activemq.2283324.n4.nabble.com/Messages-are-out-of-order-accidentally-tp4668968p4669125.html
>Sent from the ActiveMQ - User mailing list archive at Nabble.com.
Re: Re:Messages are out of order accidentally
Posted by guerra <jg...@gmail.com>.
I had the same problem on 5.5.1 for a single consumer. For some weird reason
messages poked into the broker within ~200ms or less, they came out in
different order as they came in. I had to fix it from the producer side
delaying ordered messages be sent one per second. Since that, the consumer
receives the messages in order as they should and it working nicely since
more than a year.
I made some test on 5.6.0 and it seems okay, but I can not guarantee that
because a very l imitated text fixtures were performed.
--
View this message in context: http://activemq.2283324.n4.nabble.com/Messages-are-out-of-order-accidentally-tp4668968p4669125.html
Sent from the ActiveMQ - User mailing list archive at Nabble.com.
Re:Messages are out of order accidentally
Posted by SuoNayi <su...@163.com>.
Any comments?
At 2013-07-08 17:53:34,SuoNayi <su...@163.com> wrote:
>Hi,We are using Master/slave topology with shared database and the version is 5.5.0.
>Unfortunately the problem that messages get out of order happens accidentally and
>it breaks down our application since we really depend on message order mechanism.
>
>
>We're using Virtual Topic for publishing messages to different data centers across country.
>Each data center has one or more exclusive subscribers.When the problem happens,
>some data centers(3 data centers last time) are seeing out-of-order message while the others are ok.
>Since I know that concurrent consumers can make messages out of order when they get restarted
>while obviously we are not this case.
>One of problem data centers only has one subscriber!That's why I think it must be related with broker.
>I have also searched JIRA for more related reports but without luck.
>
>
>Any ideas or pointers?
>
>
>Thanks,
>SuoNayi