When I run Corda 3 nodes using the node driver, I intermittently get the following exception:
[INFO ] 15:09:20,485 [driver-pool-thread-0] (DriverDSLImpl.kt:169) internal.DriverDSLImpl.invoke - Exception while connecting to RPC, retrying to connect at localhost:10013 {} org.apache.activemq.artemis.api.core.ActiveMQNotConnectedException: AMQ119007: Cannot connect to server(s). Tried with all available servers. at org.apache.activemq.artemis.core.client.impl.ServerLocatorImpl.createSessionFactory(ServerLocatorImpl.java:787) ~[artemis-core-client-2.2.0.jar:2.2.0] at net.corda.client.rpc.internal.RPCClientProxyHandler.start(RPCClientProxyHandler.kt:191) ~[corda-rpc-corda-3.0.jar:?] at net.corda.client.rpc.internal.RPCClient$start$1.invoke(RPCClient.kt:123) ~[corda-rpc-corda-3.0.jar:?] at net.corda.client.rpc.internal.RPCClient$start$1.invoke(RPCClient.kt:86) ~[corda-rpc-corda-3.0.jar:?] at net.corda.core.internal.InternalUtils.logElapsedTime(InternalUtils.kt:191) ~[corda-core-corda-3.0.jar:?] at net.corda.core.internal.InternalUtils.logElapsedTime(InternalUtils.kt:183) ~[corda-core-corda-3.0.jar:?] at net.corda.client.rpc.internal.RPCClient.start(RPCClient.kt:109) ~[corda-rpc-corda-3.0.jar:?] at net.corda.client.rpc.CordaRPCClient.start(CordaRPCClient.kt:135) ~[corda-rpc-corda-3.0.jar:?] at net.corda.client.rpc.CordaRPCClient.start(CordaRPCClient.kt:120) ~[corda-rpc-corda-3.0.jar:?] at net.corda.testing.node.internal.DriverDSLImpl$establishRpc$connectionFuture$1.invoke(DriverDSLImpl.kt:166) [corda-node-driver-corda-3.0.jar:?] at net.corda.testing.node.internal.DriverDSLImpl$establishRpc$connectionFuture$1.invoke(DriverDSLImpl.kt:82) [corda-node-driver-corda-3.0.jar:?] at net.corda.testing.node.internal.InternalTestUtilsKt$poll$task$1.run(InternalTestUtils.kt:86) [corda-node-driver-corda-3.0.jar:?] at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) [?:1.8.0_131] at java.util.concurrent.FutureTask.run(FutureTask.java:266) [?:1.8.0_131] at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180) [?:1.8.0_131] at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293) [?:1.8.0_131] at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) [?:1.8.0_131] at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) [?:1.8.0_131] at java.lang.Thread.run(Thread.java:748) [?:1.8.0_131] [INFO ] 15:09:20,469 [driver-pool-thread-1] (DriverDSLImpl.kt:169) internal.DriverDSLImpl.invoke - Exception while connecting to RPC, retrying to connect at localhost:10010 {} org.apache.activemq.artemis.api.core.ActiveMQNotConnectedException: AMQ119007: Cannot connect to server(s). Tried with all available servers. at org.apache.activemq.artemis.core.client.impl.ServerLocatorImpl.createSessionFactory(ServerLocatorImpl.java:787) ~[artemis-core-client-2.2.0.jar:2.2.0] at net.corda.client.rpc.internal.RPCClientProxyHandler.start(RPCClientProxyHandler.kt:191) ~[corda-rpc-corda-3.0.jar:?] at net.corda.client.rpc.internal.RPCClient$start$1.invoke(RPCClient.kt:123) ~[corda-rpc-corda-3.0.jar:?] at net.corda.client.rpc.internal.RPCClient$start$1.invoke(RPCClient.kt:86) ~[corda-rpc-corda-3.0.jar:?] What can I do to fix this? It doesn't happen every time I start the nodes.