Hi,
Thanks Scott.
My Fedora installation does not use queues it uses topics for messaging
(default installation). I don't have anything stuck anywhere, I have check
with a JMX console.
GSearch is subscribed to these topics and it receives messages correctly.
The topics are empty afterwards.
Any other idea ?
André
On Fri, Aug 10, 2012 at 4:06 PM, Scott Prater <[email protected]> wrote:
> Hello, André,
>
> The fact that the amount of time that Fedora takes to start up is
> variable suggests to me that ActiveMQ is trying to resend messages it
> has stuck in its queue. Few messages, quick startup, lots of messages,
> slow startup. You could verify that by deleting the messages in the
> queue, shutting down Fedora, starting it back up again, and seeing if it
> starts immediately; then perform a number of API-M actions (ingests,
> updates, etc.), examining the state of the queue, shutting down Fedora,
> starting it up again, and see if it takes a while.
>
> See http://activemq.apache.org/how-do-i-purge-a-queue.html for
> information on purging a queue.
>
> Once you've verified that is, in fact, the problem, then you'll need to
> see why messages are getting stuck in the queue: perhaps no configured
> message consumer?
>
> -- Scott
>
> On 08/10/2012 02:15 PM, André Lapointe wrote:
> > Hi,
> >
> > On Tomcat startup, our fedora installation hangs for a few minutes,
> > sometimes for as long as an hour. It seems that ActiveMQ is the problem
> > because when its turned off, the startup executes in a few second.
> >
> > I have turn on TRACE logging for ActiveMQ and here is the log traces
> > before and after the hangup :
> >
> > INFO 2012-08-10 10:34:44.059 [main]
> > (org.apache.activemq.store.kahadb.MessageDatabase) Recovery replayed 2
> > operations from the journal in 0.017 seconds.
> > INFO 2012-08-10 10:34:44.065 [main]
> > (org.apache.activemq.broker.BrokerService) ActiveMQ 5.5.0 JMS Message
> > Broker (localhost) is starting
> > INFO 2012-08-10 10:34:44.065 [main]
> > (org.apache.activemq.broker.BrokerService) For help or more information
> > please see: http://activemq.apache.org/
> > DEBUG 2012-08-10 10:45:28.699 [main]
> > (org.apache.activemq.broker.region.AbstractRegion) localhost adding
> > destination: topic://fedora.apim.update
> > DEBUG 2012-08-10 10:45:28.736 [main]
> > (org.apache.activemq.broker.region.TopicRegion) Restoring durable
> > subscription: SubscriptionInfo {subscribedDestination =
> > topic://fedora.apim.update, destination = topic://fedora.apim.update,
> > clientId = fedoragsearch0, subscriptionName = fedora.apim.update,
> > selector = null}
> > DEBUG 2012-08-10 10:45:28.776 [main]
> > (org.apache.activemq.broker.TransportConnector) Publishing:
> > tcp://localhost:61616 for broker transport URI: tcp://localhost:61616
> > DEBUG 2012-08-10 10:45:28.777 [main]
> > (org.apache.activemq.broker.region.AbstractRegion) localhost adding
> > destination: topic://ActiveMQ.Advisory.Topic
> > TRACE 2012-08-10 10:45:28.785 [main]
> > (org.apache.activemq.broker.jmx.ManagedRegionBroker) Sub with key:
> > fedoragsearch0:fedora.apim.update, already registered
> > INFO 2012-08-10 10:45:28.790 [main]
> > (org.apache.activemq.transport.TransportServerThreadSupport) Listening
> > for connections at: tcp://localhost:61616
> >
> > In this case it hung for a little bit more than 10 minutes. I've been
> > looking for a solution all day long and I can't find anything. Any idea ?
> >
> > Also, I have tried to remove everything in
> > $FEDORA_HOME/data/activemq-data/localhost/KahaDB/ and it rebuilds itself
> > at startup fast. Where does the info is taken to rebuild the activemq
> > data ? In the FOXML ?
> >
> > Thanks,
> >
> > André
> >
> >
> >
> >
> >
> >
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> >
> >
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>
> --
> Scott Prater
> Shared Development Group
> General Library System
> University of Wisconsin - Madison
> [email protected]
> 5-5415
>
>
>
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