WSO2 MB 3.0.0 Startup Error : Wait until Qpid server starts on port 5672 - wso2

Question

I just downloaded the WSO2 MB 3.0.0. And when I trying to start server I'm getting following error.
[2016-04-28 14:43:21,986] ERROR {org.wso2.carbon.andes.internal.QpidServiceComponent} - Wait until Qpid server starts on port 5672
java.net.ConnectException: Connection timed out: connect
at java.net.DualStackPlainSocketImpl.connect0(Native Method)
at java.net.DualStackPlainSocketImpl.socketConnect(DualStackPlainSocketImpl.java:79)
at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:339)
at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:198)
at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:182)
at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:172)
at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
at java.net.Socket.connect(Socket.java:579)
at java.net.Socket.connect(Socket.java:528)
at java.net.Socket.<init>(Socket.java:425)
at java.net.Socket.<init>(Socket.java:241)
at org.wso2.carbon.andes.internal.QpidServiceComponent.startAMQPServer(QpidServiceComponent.java:429)
at org.wso2.carbon.andes.internal.QpidServiceComponent.startAndesBroker(QpidServiceComponent.java:378)
at org.wso2.carbon.andes.internal.QpidServiceComponent.activate(QpidServiceComponent.java:149)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at org.eclipse.equinox.internal.ds.model.ServiceComponent.activate(ServiceComponent.java:260)
at org.eclipse.equinox.internal.ds.model.ServiceComponentProp.activate(ServiceComponentProp.java:146)
at org.eclipse.equinox.internal.ds.model.ServiceComponentProp.build(ServiceComponentProp.java:345)
at org.eclipse.equinox.internal.ds.InstanceProcess.buildComponent(InstanceProcess.java:620)
at org.eclipse.equinox.internal.ds.InstanceProcess.buildComponents(InstanceProcess.java:197)
at org.eclipse.equinox.internal.ds.Resolver.getEligible(Resolver.java:343)
at org.eclipse.equinox.internal.ds.SCRManager.serviceChanged(SCRManager.java:222)
at org.eclipse.osgi.internal.serviceregistry.FilteredServiceListener.serviceChanged(FilteredServiceListener.java:107)
at org.eclipse.osgi.framework.internal.core.BundleContextImpl.dispatchEvent(BundleContextImpl.java:861)
at org.eclipse.osgi.framework.eventmgr.EventManager.dispatchEvent(EventManager.java:230)
at org.eclipse.osgi.framework.eventmgr.ListenerQueue.dispatchEventSynchronous(ListenerQueue.java:148)
at org.eclipse.osgi.internal.serviceregistry.ServiceRegistry.publishServiceEventPrivileged(ServiceRegistry.java:819)
Please help me fix this.

Answer 1

I got this error when I had active some VPN connection in the background (did not use it for this particular case though). I suppose that WSO2 tried to connect to incorrect IP address instead of localhost. Temporarily disconnecting VPN solved this issue.

Answer 2

Go to file repository/conf/broker.xml and change value of element transports/amqp/localhost from 0.0.0.0 to localhost.

Answer 3

Above error is showing in startup url printer due as qpid server not binding with port 5672 at the time startup url printer checks for the qpid server. However after few minutes (usually 1 - 2 minutes) WSO2MB will start normally with qpid server. So you don't worry about it in first place.
Anyway I have experienced the same issue on the systems where firewall is enabled. So you should check after disabling firewall in first place. If it is not happening after disabling the firewall, then try to configure firewall rules appropriately before enabling it.
Thanks