Hi Sajith, Stratos load balancer has a configuration file in repository/conf folder: loadbalancer.conf. If you open it in a text editor you will find inline comments describing each property:
# Enable/disable topology event listener # If this property is set to true, load balancer will listen to topology events and build # the topology configuration accordingly. If not static configuration given in the services # section will be used. topology-event-listener: true; You may need to set the above property to false if you need to run the load balancer with a static configuration. On Thu, Feb 12, 2015 at 9:49 PM, Sajith Abeywardhana <[email protected]> wrote: > Hi All, > > I'm getting this exception while starting the > *apache-stratos-load-balancer-4.1.0. > *Please can anybody tell me why this happens? And how to solve this? > Note -: *apache-activemq-5.10.0 is running..* > > > [2015-02-12 21:42:34,100] ERROR - AmqpTopicConnector Could not connect to > message broker > javax.jms.JMSException: Error creating connection: Could not open > connection > at > org.wso2.andes.client.AMQConnectionFactory.createConnection(AMQConnectionFactory.java:325) > at > org.wso2.andes.client.AMQConnectionFactory.createTopicConnection(AMQConnectionFactory.java:429) > at > org.apache.stratos.messaging.broker.connect.amqp.AmqpTopicConnector.connect(AmqpTopicConnector.java:70) > at > org.apache.stratos.messaging.broker.subscribe.EventSubscriber.doSubscribe(EventSubscriber.java:58) > at > org.apache.stratos.messaging.broker.subscribe.EventSubscriber.run(EventSubscriber.java:73) > at > java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) > at > java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) > at java.lang.Thread.run(Thread.java:745) > Caused by: org.wso2.andes.AMQConnectionFailureException: Could not open > connection > at org.wso2.andes.client.AMQConnection.<init>(AMQConnection.java:475) > at > org.wso2.andes.client.AMQConnectionFactory.createConnection(AMQConnectionFactory.java:315) > ... 7 more > Caused by: org.wso2.andes.transport.TransportException: Could not open > connection > at > org.wso2.andes.transport.network.mina.MinaNetworkTransport$IoConnectorCreator.connect(MinaNetworkTransport.java:201) > at > org.wso2.andes.transport.network.mina.MinaNetworkTransport.connect(MinaNetworkTransport.java:71) > at > org.wso2.andes.client.AMQConnectionDelegate_8_0.makeBrokerConnection(AMQConnectionDelegate_8_0.java:110) > at > org.wso2.andes.client.AMQConnection.makeBrokerConnection(AMQConnection.java:616) > at org.wso2.andes.client.AMQConnection.<init>(AMQConnection.java:398) > ... 8 more > [2015-02-12 21:42:34,101] ERROR - AmqpTopicConnector Could not connect to > message broker > javax.jms.JMSException: Error creating connection: Could not open > connection > at > org.wso2.andes.client.AMQConnectionFactory.createConnection(AMQConnectionFactory.java:325) > at > org.wso2.andes.client.AMQConnectionFactory.createTopicConnection(AMQConnectionFactory.java:429) > at > org.apache.stratos.messaging.broker.connect.amqp.AmqpTopicConnector.connect(AmqpTopicConnector.java:70) > at > org.apache.stratos.messaging.broker.subscribe.EventSubscriber.doSubscribe(EventSubscriber.java:58) > at > org.apache.stratos.messaging.broker.subscribe.EventSubscriber.run(EventSubscriber.java:73) > at > java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) > at > java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) > at java.lang.Thread.run(Thread.java:745) > Caused by: org.wso2.andes.AMQConnectionFailureException: Could not open > connection > at org.wso2.andes.client.AMQConnection.<init>(AMQConnection.java:475) > at > org.wso2.andes.client.AMQConnectionFactory.createConnection(AMQConnectionFactory.java:315) > ... 7 more > Caused by: org.wso2.andes.transport.TransportException: Could not open > connection > at > org.wso2.andes.transport.network.mina.MinaNetworkTransport$IoConnectorCreator.connect(MinaNetworkTransport.java:201) > at > org.wso2.andes.transport.network.mina.MinaNetworkTransport.connect(MinaNetworkTransport.java:71) > at > org.wso2.andes.client.AMQConnectionDelegate_8_0.makeBrokerConnection(AMQConnectionDelegate_8_0.java:110) > at > org.wso2.andes.client.AMQConnection.makeBrokerConnection(AMQConnection.java:616) > at org.wso2.andes.client.AMQConnection.<init>(AMQConnection.java:398) > ... 8 more > [2015-02-12 21:42:34,104] ERROR - EventSubscriber Error while subscribing > to topic: tenant.> > org.apache.stratos.messaging.domain.exception.MessagingException: Could > not connect to message broker > at > org.apache.stratos.messaging.broker.connect.amqp.AmqpTopicConnector.connect(AmqpTopicConnector.java:75) > at > org.apache.stratos.messaging.broker.subscribe.EventSubscriber.doSubscribe(EventSubscriber.java:58) > at > org.apache.stratos.messaging.broker.subscribe.EventSubscriber.run(EventSubscriber.java:73) > at > java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) > at > java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) > at java.lang.Thread.run(Thread.java:745) > Caused by: javax.jms.JMSException: Error creating connection: Could not > open connection > at > org.wso2.andes.client.AMQConnectionFactory.createConnection(AMQConnectionFactory.java:325) > at > org.wso2.andes.client.AMQConnectionFactory.createTopicConnection(AMQConnectionFactory.java:429) > at > org.apache.stratos.messaging.broker.connect.amqp.AmqpTopicConnector.connect(AmqpTopicConnector.java:70) > ... 5 more > Caused by: org.wso2.andes.AMQConnectionFailureException: Could not open > connection > at org.wso2.andes.client.AMQConnection.<init>(AMQConnection.java:475) > at > org.wso2.andes.client.AMQConnectionFactory.createConnection(AMQConnectionFactory.java:315) > ... 7 more > Caused by: org.wso2.andes.transport.TransportException: Could not open > connection > at > org.wso2.andes.transport.network.mina.MinaNetworkTransport$IoConnectorCreator.connect(MinaNetworkTransport.java:201) > at > org.wso2.andes.transport.network.mina.MinaNetworkTransport.connect(MinaNetworkTransport.java:71) > at > org.wso2.andes.client.AMQConnectionDelegate_8_0.makeBrokerConnection(AMQConnectionDelegate_8_0.java:110) > at > org.wso2.andes.client.AMQConnection.makeBrokerConnection(AMQConnection.java:616) > at org.wso2.andes.client.AMQConnection.<init>(AMQConnection.java:398) > ... 8 more > [2015-02-12 21:42:34,105] INFO - EventSubscriber Will try to subscribe > again in 30 sec > [2015-02-12 21:42:34,100] ERROR - AmqpTopicConnector Could not connect to > message broker > javax.jms.JMSException: Error creating connection: Could not open > connection > at > org.wso2.andes.client.AMQConnectionFactory.createConnection(AMQConnectionFactory.java:325) > at > org.wso2.andes.client.AMQConnectionFactory.createTopicConnection(AMQConnectionFactory.java:429) > at > org.apache.stratos.messaging.broker.connect.amqp.AmqpTopicConnector.connect(AmqpTopicConnector.java:70) > at > org.apache.stratos.messaging.broker.subscribe.EventSubscriber.doSubscribe(EventSubscriber.java:58) > at > org.apache.stratos.messaging.broker.subscribe.EventSubscriber.run(EventSubscriber.java:73) > at > java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) > at > java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) > at java.lang.Thread.run(Thread.java:745) > Caused by: org.wso2.andes.AMQConnectionFailureException: Could not open > connection > at org.wso2.andes.client.AMQConnection.<init>(AMQConnection.java:475) > at > org.wso2.andes.client.AMQConnectionFactory.createConnection(AMQConnectionFactory.java:315) > ... 7 more > Caused by: org.wso2.andes.transport.TransportException: Could not open > connection > at > org.wso2.andes.transport.network.mina.MinaNetworkTransport$IoConnectorCreator.connect(MinaNetworkTransport.java:201) > at > org.wso2.andes.transport.network.mina.MinaNetworkTransport.connect(MinaNetworkTransport.java:71) > at > org.wso2.andes.client.AMQConnectionDelegate_8_0.makeBrokerConnection(AMQConnectionDelegate_8_0.java:110) > at > org.wso2.andes.client.AMQConnection.makeBrokerConnection(AMQConnection.java:616) > at org.wso2.andes.client.AMQConnection.<init>(AMQConnection.java:398) > ... 8 more > [2015-02-12 21:42:34,106] ERROR - EventSubscriber Error while subscribing > to topic: application.signup.> > org.apache.stratos.messaging.domain.exception.MessagingException: Could > not connect to message broker > at > org.apache.stratos.messaging.broker.connect.amqp.AmqpTopicConnector.connect(AmqpTopicConnector.java:75) > at > org.apache.stratos.messaging.broker.subscribe.EventSubscriber.doSubscribe(EventSubscriber.java:58) > at > org.apache.stratos.messaging.broker.subscribe.EventSubscriber.run(EventSubscriber.java:73) > at > java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) > at > java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) > at java.lang.Thread.run(Thread.java:745) > Caused by: javax.jms.JMSException: Error creating connection: Could not > open connection > at > org.wso2.andes.client.AMQConnectionFactory.createConnection(AMQConnectionFactory.java:325) > at > org.wso2.andes.client.AMQConnectionFactory.createTopicConnection(AMQConnectionFactory.java:429) > at > org.apache.stratos.messaging.broker.connect.amqp.AmqpTopicConnector.connect(AmqpTopicConnector.java:70) > ... 5 more > Caused by: org.wso2.andes.AMQConnectionFailureException: Could not open > connection > at org.wso2.andes.client.AMQConnection.<init>(AMQConnection.java:475) > at > org.wso2.andes.client.AMQConnectionFactory.createConnection(AMQConnectionFactory.java:315) > ... 7 more > Caused by: org.wso2.andes.transport.TransportException: Could not open > connection > at > org.wso2.andes.transport.network.mina.MinaNetworkTransport$IoConnectorCreator.connect(MinaNetworkTransport.java:201) > at > org.wso2.andes.transport.network.mina.MinaNetworkTransport.connect(MinaNetworkTransport.java:71) > at > org.wso2.andes.client.AMQConnectionDelegate_8_0.makeBrokerConnection(AMQConnectionDelegate_8_0.java:110) > at > org.wso2.andes.client.AMQConnection.makeBrokerConnection(AMQConnection.java:616) > at org.wso2.andes.client.AMQConnection.<init>(AMQConnection.java:398) > ... 8 more > [2015-02-12 21:42:34,107] INFO - EventSubscriber Will try to subscribe > again in 30 sec > [2015-02-12 21:42:34,104] ERROR - AmqpTopicConnector Could not connect to > message broker > javax.jms.JMSException: Error creating connection: Could not open > connection > at > org.wso2.andes.client.AMQConnectionFactory.createConnection(AMQConnectionFactory.java:325) > at > org.wso2.andes.client.AMQConnectionFactory.createTopicConnection(AMQConnectionFactory.java:429) > at > org.apache.stratos.messaging.broker.connect.amqp.AmqpTopicConnector.connect(AmqpTopicConnector.java:70) > at > org.apache.stratos.messaging.broker.subscribe.EventSubscriber.doSubscribe(EventSubscriber.java:58) > at > org.apache.stratos.messaging.broker.subscribe.EventSubscriber.run(EventSubscriber.java:73) > at > java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) > at > java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) > at java.lang.Thread.run(Thread.java:745) > Caused by: org.wso2.andes.AMQConnectionFailureException: Could not open > connection > at org.wso2.andes.client.AMQConnection.<init>(AMQConnection.java:475) > at > org.wso2.andes.client.AMQConnectionFactory.createConnection(AMQConnectionFactory.java:315) > ... 7 more > Caused by: org.wso2.andes.transport.TransportException: Could not open > connection > at > org.wso2.andes.transport.network.mina.MinaNetworkTransport$IoConnectorCreator.connect(MinaNetworkTransport.java:201) > at > org.wso2.andes.transport.network.mina.MinaNetworkTransport.connect(MinaNetworkTransport.java:71) > at > org.wso2.andes.client.AMQConnectionDelegate_8_0.makeBrokerConnection(AMQConnectionDelegate_8_0.java:110) > at > org.wso2.andes.client.AMQConnection.makeBrokerConnection(AMQConnection.java:616) > at org.wso2.andes.client.AMQConnection.<init>(AMQConnection.java:398) > ... 8 more > [2015-02-12 21:42:34,102] ERROR - EventSubscriber Error while subscribing > to topic: topology.> > org.apache.stratos.messaging.domain.exception.MessagingException: Could > not connect to message broker > at > org.apache.stratos.messaging.broker.connect.amqp.AmqpTopicConnector.connect(AmqpTopicConnector.java:75) > at > org.apache.stratos.messaging.broker.subscribe.EventSubscriber.doSubscribe(EventSubscriber.java:58) > at > org.apache.stratos.messaging.broker.subscribe.EventSubscriber.run(EventSubscriber.java:73) > at > java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) > at > java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) > at java.lang.Thread.run(Thread.java:745) > Caused by: javax.jms.JMSException: Error creating connection: Could not > open connection > at > org.wso2.andes.client.AMQConnectionFactory.createConnection(AMQConnectionFactory.java:325) > at > org.wso2.andes.client.AMQConnectionFactory.createTopicConnection(AMQConnectionFactory.java:429) > at > org.apache.stratos.messaging.broker.connect.amqp.AmqpTopicConnector.connect(AmqpTopicConnector.java:70) > ... 5 more > Caused by: org.wso2.andes.AMQConnectionFailureException: Could not open > connection > at org.wso2.andes.client.AMQConnection.<init>(AMQConnection.java:475) > at > org.wso2.andes.client.AMQConnectionFactory.createConnection(AMQConnectionFactory.java:315) > ... 7 more > Caused by: org.wso2.andes.transport.TransportException: Could not open > connection > at > org.wso2.andes.transport.network.mina.MinaNetworkTransport$IoConnectorCreator.connect(MinaNetworkTransport.java:201) > at > org.wso2.andes.transport.network.mina.MinaNetworkTransport.connect(MinaNetworkTransport.java:71) > at > org.wso2.andes.client.AMQConnectionDelegate_8_0.makeBrokerConnection(AMQConnectionDelegate_8_0.java:110) > at > org.wso2.andes.client.AMQConnection.makeBrokerConnection(AMQConnection.java:616) > at org.wso2.andes.client.AMQConnection.<init>(AMQConnection.java:398) > ... 8 more > [2015-02-12 21:42:34,109] INFO - EventSubscriber Will try to subscribe > again in 30 sec > [2015-02-12 21:42:34,108] ERROR - EventSubscriber Error while subscribing > to topic: domain.mapping.> > org.apache.stratos.messaging.domain.exception.MessagingException: Could > not connect to message broker > at > org.apache.stratos.messaging.broker.connect.amqp.AmqpTopicConnector.connect(AmqpTopicConnector.java:75) > at > org.apache.stratos.messaging.broker.subscribe.EventSubscriber.doSubscribe(EventSubscriber.java:58) > at > org.apache.stratos.messaging.broker.subscribe.EventSubscriber.run(EventSubscriber.java:73) > at > java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) > at > java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) > at java.lang.Thread.run(Thread.java:745) > Caused by: javax.jms.JMSException: Error creating connection: Could not > open connection > at > org.wso2.andes.client.AMQConnectionFactory.createConnection(AMQConnectionFactory.java:325) > at > org.wso2.andes.client.AMQConnectionFactory.createTopicConnection(AMQConnectionFactory.java:429) > at > org.apache.stratos.messaging.broker.connect.amqp.AmqpTopicConnector.connect(AmqpTopicConnector.java:70) > ... 5 more > Caused by: org.wso2.andes.AMQConnectionFailureException: Could not open > connection > at org.wso2.andes.client.AMQConnection.<init>(AMQConnection.java:475) > at > org.wso2.andes.client.AMQConnectionFactory.createConnection(AMQConnectionFactory.java:315) > ... 7 more > Caused by: org.wso2.andes.transport.TransportException: Could not open > connection > at > org.wso2.andes.transport.network.mina.MinaNetworkTransport$IoConnectorCreator.connect(MinaNetworkTransport.java:201) > at > org.wso2.andes.transport.network.mina.MinaNetworkTransport.connect(MinaNetworkTransport.java:71) > at > org.wso2.andes.client.AMQConnectionDelegate_8_0.makeBrokerConnection(AMQConnectionDelegate_8_0.java:110) > at > org.wso2.andes.client.AMQConnection.makeBrokerConnection(AMQConnection.java:616) > at org.wso2.andes.client.AMQConnection.<init>(AMQConnection.java:398) > ... 8 more > [2015-02-12 21:42:34,110] INFO - EventSubscriber Will try to subscribe > again in 30 sec > > > *Sajith Abeywardhana* | Software Engineer > WSO2, Inc | lean. enterprise. middleware. > #20, Palm Grove, Colombo 03, Sri Lanka. > Mobile: +94772260485 > Email: [email protected] <[email protected]> | Web: www.wso2.com > -- *Imesh Gunaratne* Technical Lead WSO2 Inc: http://wso2.com T: +94 11 214 5345 M: +94 77 374 2057 W: http://imesh.gunaratne.org Lean . Enterprise . Middleware
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