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Posted to users@camel.apache.org by Carlo Camerino <ca...@gmail.com> on 2010/01/21 09:59:07 UTC

How To Check If A Networked Connector Is Up

Hi,

I have a sistuation in which i use a network connector to communicate with
another broker,
my problem is that when the other networked connector is turned off,
activemq still trys to send a message to

i'm using producertemplate in camel btw,

object.sendRequest(body, "activemq:financials");

financials is a queue which is configured to do a store and forward to the
other broker residing on another system.
]


is there any way i could check that if networkbroker a's connection to
networkbroker b is down,
the system will automatically throw an exception.

The default behavior seems to be, when i place a message on the "queue" on
broker a, the system still waits for the message to timeout.

It doesn't alert me that no connection is available at all.

How can this be avoided?

Thanks A lot

Re: How To Check If A Networked Connector Is Up

Posted by Carlo Camerino <ca...@gmail.com>.

Here is a networkbroker , i have an activemqcomponent which connects to
broker client broker.
in turn client broker is connected to another broker

<bean id="activemq"
class="org.apache.activemq.camel.component.ActiveMQComponent">
<property name="brokerURL" value="tcp://localhost:8010"/>
</bean>

<amq:broker brokerName="clientBroker" useShutdownHook="true" >
        <amq:networkConnectors>
            <amq:networkConnector  uri="static:(tcp://192.168.253.2:8007)"
duplex="true">
                <amq:staticallyIncludedDestinations>
                    <amq:queue name = "financials" physicalName="financials"
></amq:queue>
                </amq:staticallyIncludedDestinations>
            </amq:networkConnector>
        </amq:networkConnectors>
        <amq:transportConnectors>
            <amq:transportConnector uri = "tcp://localhost:8010" />
        </amq:transportConnectors>
    </amq:broker>

Here is the broker for my server

<amq:broker id="serverBroker" brokerName="serverBroker" persistent="false">
<amq:transportConnectors>
<amq:transportConnector uri="tcp://localhost:8007/">
            </amq:transportConnector>
</amq:transportConnectors>
</amq:broker>

<bean id="activemq"
class="org.apache.activemq.camel.component.ActiveMQComponent">
<property name="brokerURL" value="tcp://localhost:8007"/>
</bean>


On Thu, Jan 21, 2010 at 2:17 AM, Gary Tully <ga...@gmail.com> wrote:

> This does not sound right. The store and forward should happen async and
> should block pending a reconnect of the networkconnector in the event of a
> failure of the second broker.
> Can you post your activemq configuration?
>
> An active network connector is visible in JMX so you could validate its
> state through a JMX query but you should not need to be aware of that state
> when producing messages.
>
> 2010/1/21 Carlo Camerino <ca...@gmail.com>
>
> > Hi,
> >
> > I have a sistuation in which i use a network connector to communicate
> with
> > another broker,
> > my problem is that when the other networked connector is turned off,
> > activemq still trys to send a message to
> >
> > i'm using producertemplate in camel btw,
> >
> > object.sendRequest(body, "activemq:financials");
> >
> > financials is a queue which is configured to do a store and forward to
> the
> > other broker residing on another system.
> > ]
> >
> >
> > is there any way i could check that if networkbroker a's connection to
> > networkbroker b is down,
> > the system will automatically throw an exception.
> >
> > The default behavior seems to be, when i place a message on the "queue"
> on
> > broker a, the system still waits for the message to timeout.
> >
> > It doesn't alert me that no connection is available at all.
> >
> > How can this be avoided?
> >
> > Thanks A lot
> >
>
>
>
> --
> http://blog.garytully.com
>
> Open Source Integration
> http://fusesource.com
>

Re: How To Check If A Networked Connector Is Up

Posted by Gary Tully <ga...@gmail.com>.

This does not sound right. The store and forward should happen async and
should block pending a reconnect of the networkconnector in the event of a
failure of the second broker.
Can you post your activemq configuration?

An active network connector is visible in JMX so you could validate its
state through a JMX query but you should not need to be aware of that state
when producing messages.

2010/1/21 Carlo Camerino <ca...@gmail.com>

> Hi,
>
> I have a sistuation in which i use a network connector to communicate with
> another broker,
> my problem is that when the other networked connector is turned off,
> activemq still trys to send a message to
>
> i'm using producertemplate in camel btw,
>
> object.sendRequest(body, "activemq:financials");
>
> financials is a queue which is configured to do a store and forward to the
> other broker residing on another system.
> ]
>
>
> is there any way i could check that if networkbroker a's connection to
> networkbroker b is down,
> the system will automatically throw an exception.
>
> The default behavior seems to be, when i place a message on the "queue" on
> broker a, the system still waits for the message to timeout.
>
> It doesn't alert me that no connection is available at all.
>
> How can this be avoided?
>
> Thanks A lot
>



-- 
http://blog.garytully.com

Open Source Integration
http://fusesource.com