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From "Mark Gellings (JIRA)" <jira+amq...@apache.org>
Subject [jira] Commented: (AMQNET-294) durable subscription message loss when master broker fails to slave
Date Wed, 15 Dec 2010 16:44:03 GMT

    [ https://issues.apache.org/jira/browse/AMQNET-294?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12971733#action_12971733
] 

Mark Gellings commented on AMQNET-294:
--------------------------------------

I was just using your unit test this time with triggered the transport to close.  I wasn't
actually failing the broker over.

Also I wasn't killing the broker, just shutting down the master and allowing the slave to
take over.  Not sure if that would make a difference or not.

I can try enabling the inactivity monitor and lower the keep alive period.  How exactly would
I do that?

Also, was this logic changed from NMS v1.3 because that version works fine, no deadlocks or
hanging when the broker fails over to the slave.

Also, were you running your broker locally or across a network?  Can you send me your broker
config(s) and I can try testing under your setup?

> durable subscription message loss when master broker fails to slave
> -------------------------------------------------------------------
>
>                 Key: AMQNET-294
>                 URL: https://issues.apache.org/jira/browse/AMQNET-294
>             Project: ActiveMQ .Net
>          Issue Type: Bug
>          Components: NMS
>    Affects Versions: 1.4.1
>         Environment: Windows 7 (client), Windows Server 2008 64-bit (server brokers run
on), Sql Server 2008 (database)
>            Reporter: Mark Gellings
>            Assignee: Jim Gomes
>             Fix For: 1.5.0
>
>         Attachments: Apache.NMS.Test (2).zip, Apache.NMS.Test.zip, DurableConsumerTest.cs,
DurableSubscriberFailoverTest.java, TimsTestRevisedSlightly.zip
>
>
> We are seeing message loss on a durable subscription when using NMS ActiveMQ v1.4.1 and
ActiveMQ v5.4.1.
> Please run the included NUnit test and watch the console output.  When it says "Failover
the broker now!" do as it says.  About 75% of the time less than half of the expected 250
messages come through.
> Using version 1.1 of NMS the majority of the time the test passes.  I have seen it fail
only a few times with this earlier version, and when it does there are only a couple messages
that don't come through.
> In the zip file will be the unit test, and a config directory containing the master and
slave activemq configurations.  We are using JDBC master/slave.

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