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From "Dejan Bosanac" <de...@nighttale.net>
Subject Re: ActiveMQ client library hanging indefinitely when attempting to use failover URL in conjunction with connection paramters
Date Fri, 09 Jan 2009 12:42:49 GMT
Hi,

can you file this as Jira issue, ideally with the test case?

Regards
--
Dejan Bosanac

Open Source Integration - http://fusesource.com/
ActiveMQ in Action - http://www.manning.com/snyder/
Blog - http://www.nighttale.net


On Tue, Jan 6, 2009 at 8:35 PM, brent.nash <brent.r.nash@jpl.nasa.gov>wrote:

>
> ###############################
> # which version of ActiveMQ are you using?
> ###############################
>
> I'm using version ActiveMQ 5.0.0.23-fuse
>
> ###############################
> # are you using queues or topics and are you using persistent or non
> persistent messaging?
> ###############################
>
> I'm using topics and my problematic client is strictly a publisher and my
> problem occurs before any messages are actually sent, though the messages
> are Non-Persistent if that helps.
>
> ###############################
> # details of your environment can help too such as
> ###############################
>
> Mac OS X 10.5.5 with Java version "J2SE (build 1.5.0_16-b06-284)"
>
> I'm running the message bus standalone and running the client standalone,
> there are no application servers involved.
>
> ###############################
> Problem description
> ###############################
>
> I'm trying to implement a simple auto-reconnect strategy for my standalone
> client.  It creates two publishers to two different topics.  There are
> certain parameters that when added to the connection URL, cause my client
> to
> hang indefinitely between creating the first and second publisher.  The
> publishers are created within a loop, so there is no code in between
> creating the first publisher and the second.  In my jndi.properties file,
> I've tried multiple things.
>
> This works (no parameters on the reconnect URL):
>
>
> java.naming.provider.url=failover://(tcp://localhost:61614)?initialReconnectDelay=10000&useExponentialBackOff=false&maxReconnectAttempts=0&randomize=false
>
> This works also (adding "wireFormat.maxInactivityDuration=0&keepAlive=true"
> to reconnect URL):
>
>
> java.naming.provider.url=failover://(tcp://localhost:61614?wireFormat.maxInactivityDuration=0&keepAlive=true)?initialReconnectDelay=10000&useExponentialBackOff=false&maxReconnectAttempts=0&randomize=false
>
> As soon as I attempt to add more parameters to the URL, however, things go
> awry.  For instance, this entry (by just adding
> "jms.prefetchPolicy.all=500"
> to reconnect URL):
>
>
> java.naming.provider.url=failover://(tcp://localhost:61614?jms.prefetchPolicy.all=500&wireFormat.maxInactivityDuration=0&keepAlive=true)?initialReconnectDelay=10000&useExponentialBackOff=false&maxReconnectAttempts=0&randomize=false
>
> My application will create my first publisher and then hang indefinitely
> without creating my second publisher.  At this point, SIGTERM and SIGQUIT
> signals do nothing, I have to send a SIGKILL to get rid of the java
> process.
>
> Ultimately, I would like to use this URL:
>
>
> java.naming.provider.url=failover://(tcp://localhost:61614?connectionTimeout=0&jms.prefetchPolicy.all=500&jms.useCopyOnSend=false&jms.useCompression=true&wireFormat.maxInactivityDuration=0&keepAlive=true)?initialReconnectDelay=10000&useExponentialBackOff=false&maxReconnectAttempts=0&randomize=false
>
> But I can't because of this freeze I keep encountering.
>
> I've checked some past posts such as:
>
>
> http://www.nabble.com/ActiveMQ-failover-url-problems-tt13764784.html#a13764784
>
> But they don't seem to be able to help me.
>
> In my code, the freeze seems to occur as soon as I call
> TopicConnection.start() for the TopicConnection for my first publisher.
>
> Thoughts?
> --
> View this message in context:
> http://www.nabble.com/ActiveMQ-client-library-hanging-indefinitely-when-attempting-to-use-failover-URL-in-conjunction-with-connection-paramters-tp21317433p21317433.html
> Sent from the ActiveMQ - User mailing list archive at Nabble.com.
>
>

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