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https://issues.apache.org/activemq/browse/AMQNET-159?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Timothy Bish resolved AMQNET-159.
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Resolution: Fixed
Left as implemented.
> Make failover protocol optionally asynchronously connect to sockets
> -------------------------------------------------------------------
>
> Key: AMQNET-159
> URL: https://issues.apache.org/activemq/browse/AMQNET-159
> Project: ActiveMQ .Net
> Issue Type: New Feature
> Components: ActiveMQ
> Affects Versions: 1.1.0
> Environment: XP, Windows Server 2008, Sql Server 2008
> Reporter: Mark Gellings
> Assignee: Jim Gomes
> Fix For: 1.2.0
>
> Attachments: FailoverAsyncConnect.patch
>
>
> The current failover transport synchronously attempts to socket connect to a
> broker. Preferably we would first socket connect trying the master address
> in the failover address to avoid a socket connection timeout. When the first
> tcp address in the failover address is the slave, its connectors are not
> started, and .NET takes around 20 - 25s to timeout trying to socket connect
> to the slave. Thus the client is waiting 20-25s to submit a message when the
> session is first established.
> Since the first tcp address in the failover address is never guaranteed to be
> the master, I've coded an enhancement that optionally allows to
> asynchronously socket connect utilizing all the tcp addresses in the failover
> address. I have a patch you can apply.
> The following failover address is an example of how to use the async connect.
> private static Uri _uri = new
> Uri("failover:(tcp://WAMQDEV1.qg.com:10083,tcp://SXMQDEV1.qg.com:10083)?AsyncConnect=true&AsyncTimeout=20000");
> This will cause the failover transport to attempt connecting to WAMQDEV1 and
> SXMQDEV1 at the same time to avoid the impact of any socket connect timeouts.
> First broker connected to becomes the transport utilized. If WAMQDEV1
> broker is not running or is running the slave broker then if SXMQDEV1 is
> running the master broker the client will connect to SXMQDEV1.
> AsyncTimeout is the max time in milliseconds to wait for a transport to be
> initialized. So if both brokers are down, in the example above, after 20000
> milliseconds the normal retry logic will kick in.
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