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Posted to users@activemq.apache.org by Ryan Moquin <fr...@gmail.com> on 2009/10/23 05:07:39 UTC
Multicast Discovery and network connections
I've had problems with the multicast discovery in activemq when a network
connection isn't present, as well as others. Is that really an expected
behavior? Is there any reason that activemq couldn't gracefully handle that
situation by just logging a message until the network connection is
available?
Ryan
Re: Multicast Discovery and network connections
Posted by Gary Tully <ga...@gmail.com>.
that error seems more like multicast is not supported rather than there is
no network. If you disable multicast discovery/publish, can the regular tcp
transport connector start and listen?
Unfortunately there is no retry on the inital start procedure of activemq.
If a configured services are not available the exception propagates through
to effect a failure. I guess this is mainly this is because a broker with no
network or no store, for example, is not very useful.
2009/10/26 Ryan Moquin <fr...@gmail.com>
> Here's the relevant portion of the stack trace which will show you what
> happens when starting up a broker in it's default configuration without a
> network connection. This is also using the latest fuse distro (3.4.0.4).
> on
> windows btw. Basically, when the ActiveMQ Broker attempts to start, it
> will
> fail due to there being no network connection. It would be nice if maybe
> the connection could be periodically restarted until the network connection
> is available.. not sure what happens when the network connection goes down
> if ActiveMQ is up, but it would be nice if it could handle it gracefully
> and
> restore the multicast connection when the network is available again.
> Hopefully there is already someway that this can be dealt with gracefully.
>
> Ryan
>
> Loading Apache ServiceMix from servicemix.xml on the CLASSPATH
> ERROR - BrokerService - Failed to start ActiveMQ JMS
> Message Br
> oker. Reason: java.net.SocketException: error setting options
> java.net.SocketException: error setting options
> at java.net.PlainDatagramSocketImpl.join(Native Method)
> at
> java.net.PlainDatagramSocketImpl.join(PlainDatagramSocketImpl.java:17
> 2)
> at java.net.MulticastSocket.joinGroup(MulticastSocket.java:276)
> at
> org.apache.activemq.transport.discovery.multicast.MulticastDiscoveryA
> gent.start(MulticastDiscoveryAgent.java:297)
> at
> org.apache.activemq.broker.TransportConnector.start(TransportConnecto
> r.java:244)
> at
> org.apache.activemq.broker.BrokerService.startTransportConnector(Brok
> erService.java:1929)
> at
> org.apache.activemq.broker.BrokerService.startAllConnectors(BrokerSer
> vice.java:1875)
> at
> org.apache.activemq.broker.BrokerService.start(BrokerService.java:495
> )
> at
> org.apache.activemq.xbean.XBeanBrokerService.afterPropertiesSet(XBean
> BrokerService.java:56)
>
> On Fri, Oct 23, 2009 at 6:47 AM, Gary Tully <ga...@gmail.com> wrote:
>
> > can you expand on what you are seeing?
> >
> > 2009/10/23 Ryan Moquin <fr...@gmail.com>
> >
> > > I've had problems with the multicast discovery in activemq when a
> network
> > > connection isn't present, as well as others. Is that really an
> expected
> > > behavior? Is there any reason that activemq couldn't gracefully handle
> > > that
> > > situation by just logging a message until the network connection is
> > > available?
> > >
> > > Ryan
> > >
> >
> >
> >
> > --
> > http://blog.garytully.com
> >
> > Open Source Integration
> > http://fusesource.com
> >
>
--
http://blog.garytully.com
Open Source Integration
http://fusesource.com
Re: Multicast Discovery and network connections
Posted by Ryan Moquin <fr...@gmail.com>.
Here's the relevant portion of the stack trace which will show you what
happens when starting up a broker in it's default configuration without a
network connection. This is also using the latest fuse distro (3.4.0.4). on
windows btw. Basically, when the ActiveMQ Broker attempts to start, it will
fail due to there being no network connection. It would be nice if maybe
the connection could be periodically restarted until the network connection
is available.. not sure what happens when the network connection goes down
if ActiveMQ is up, but it would be nice if it could handle it gracefully and
restore the multicast connection when the network is available again.
Hopefully there is already someway that this can be dealt with gracefully.
Ryan
Loading Apache ServiceMix from servicemix.xml on the CLASSPATH
ERROR - BrokerService - Failed to start ActiveMQ JMS
Message Br
oker. Reason: java.net.SocketException: error setting options
java.net.SocketException: error setting options
at java.net.PlainDatagramSocketImpl.join(Native Method)
at
java.net.PlainDatagramSocketImpl.join(PlainDatagramSocketImpl.java:17
2)
at java.net.MulticastSocket.joinGroup(MulticastSocket.java:276)
at
org.apache.activemq.transport.discovery.multicast.MulticastDiscoveryA
gent.start(MulticastDiscoveryAgent.java:297)
at
org.apache.activemq.broker.TransportConnector.start(TransportConnecto
r.java:244)
at
org.apache.activemq.broker.BrokerService.startTransportConnector(Brok
erService.java:1929)
at
org.apache.activemq.broker.BrokerService.startAllConnectors(BrokerSer
vice.java:1875)
at
org.apache.activemq.broker.BrokerService.start(BrokerService.java:495
)
at
org.apache.activemq.xbean.XBeanBrokerService.afterPropertiesSet(XBean
BrokerService.java:56)
On Fri, Oct 23, 2009 at 6:47 AM, Gary Tully <ga...@gmail.com> wrote:
> can you expand on what you are seeing?
>
> 2009/10/23 Ryan Moquin <fr...@gmail.com>
>
> > I've had problems with the multicast discovery in activemq when a network
> > connection isn't present, as well as others. Is that really an expected
> > behavior? Is there any reason that activemq couldn't gracefully handle
> > that
> > situation by just logging a message until the network connection is
> > available?
> >
> > Ryan
> >
>
>
>
> --
> http://blog.garytully.com
>
> Open Source Integration
> http://fusesource.com
>
Re: Multicast Discovery and network connections
Posted by Gary Tully <ga...@gmail.com>.
can you expand on what you are seeing?
2009/10/23 Ryan Moquin <fr...@gmail.com>
> I've had problems with the multicast discovery in activemq when a network
> connection isn't present, as well as others. Is that really an expected
> behavior? Is there any reason that activemq couldn't gracefully handle
> that
> situation by just logging a message until the network connection is
> available?
>
> Ryan
>
--
http://blog.garytully.com
Open Source Integration
http://fusesource.com