First of all: I'm a newbie to OPCUA. :)
I'm trying to connect an Milo Client to our Server but don't really understand whats going wrong. The sample Client and Server work fine together, but when I try to connect the client sample with one of the public OPC-UA-Test-Servers I get those exceptions:
15:48:34.729 [ua-netty-event-loop-0] DEBUG org.eclipse.milo.opcua.stack.client.handlers.UaTcpClientAcknowledgeHandler - Sent Hello message on channel=[id: 0xc22800c2, L:/10.22.19.217:58947 - R:opcua.demo-this.com/52.233.134.134:51210]. 15:48:34.729 [ua-netty-event-loop-0] WARN io.netty.channel.DefaultChannelPipeline - An exceptionCaught() event was fired, and it reached at the tail of the pipeline. It usually means the last handler in the pipeline did not handle the exception. java.io.IOException: An existing connection was forcibly closed by the remote host at sun.nio.ch.SocketDispatcher.read0(Native Method) at sun.nio.ch.SocketDispatcher.read(SocketDispatcher.java:43) at sun.nio.ch.IOUtil.readIntoNativeBuffer(IOUtil.java:223) at sun.nio.ch.IOUtil.read(IOUtil.java:192) at sun.nio.ch.SocketChannelImpl.read(SocketChannelImpl.java:380) at io.netty.buffer.PooledUnsafeDirectByteBuf.setBytes(PooledUnsafeDirectByteBuf.java:221) at io.netty.buffer.AbstractByteBuf.writeBytes(AbstractByteBuf.java:898) at io.netty.channel.socket.nio.NioSocketChannel.doReadBytes(NioSocketChannel.java:242) at io.netty.channel.nio.AbstractNioByteChannel$NioByteUnsafe.read(AbstractNioByteChannel.java:119) at io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:528) at io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:485) at io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:399) at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:371) at io.netty.util.concurrent.SingleThreadEventExecutor$2.run(SingleThreadEventExecutor.java:112) at java.lang.Thread.run(Thread.java:745) 15:48:39.612 [ForkJoinPool.commonPool-worker-1] DEBUG org.eclipse.milo.opcua.stack.client.ClientChannelManager - Channel bootstrap failed: timed out waiting for acknowledge org.eclipse.milo.opcua.stack.core.UaException: timed out waiting for acknowledge at org.eclipse.milo.opcua.stack.client.handlers.UaTcpClientAcknowledgeHandler.lambda$startHelloTimeout$4(UaTcpClientAcknowledgeHandler.java:156) at org.eclipse.milo.opcua.stack.client.handlers.UaTcpClientAcknowledgeHandler$$Lambda$27/469017260.run(Unknown Source) at io.netty.util.HashedWheelTimer$HashedWheelTimeout.expire(HashedWheelTimer.java:581) at io.netty.util.HashedWheelTimer$HashedWheelBucket.expireTimeouts(HashedWheelTimer.java:655) at io.netty.util.HashedWheelTimer$Worker.run(HashedWheelTimer.java:367) at java.lang.Thread.run(Thread.java:745) 15:48:39.613 [main] ERROR org.eclipse.milo.examples.client.ClientExampleRunner - Error running example: UaException: status=Bad_Timeout, message=timed out waiting for acknowledge java.util.concurrent.ExecutionException: UaException: status=Bad_Timeout, message=timed out waiting for acknowledge at java.util.concurrent.CompletableFuture.reportGet(CompletableFuture.java:357) at java.util.concurrent.CompletableFuture.get(CompletableFuture.java:1887) at org.eclipse.milo.examples.client.ClientExampleRunner.createClient(ClientExampleRunner.java:56) at org.eclipse.milo.examples.client.ClientExampleRunner.run(ClientExampleRunner.java:103) at org.eclipse.milo.examples.client.BrowseExample.main(BrowseExample.java:40) Caused by: org.eclipse.milo.opcua.stack.core.UaException: timed out waiting for acknowledge at org.eclipse.milo.opcua.stack.client.handlers.UaTcpClientAcknowledgeHandler.lambda$startHelloTimeout$4(UaTcpClientAcknowledgeHandler.java:156) at org.eclipse.milo.opcua.stack.client.handlers.UaTcpClientAcknowledgeHandler$$Lambda$27/469017260.run(Unknown Source) at io.netty.util.HashedWheelTimer$HashedWheelTimeout.expire(HashedWheelTimer.java:581) at io.netty.util.HashedWheelTimer$HashedWheelBucket.expireTimeouts(HashedWheelTimer.java:655) at io.netty.util.HashedWheelTimer$Worker.run(HashedWheelTimer.java:367) at java.lang.Thread.run(Thread.java:745) 15:48:42.842 [threadDeathWatcher-2-1] DEBUG io.netty.buffer.PoolThreadCache - Freed 2 thread-local buffer(s) from thread: ua-netty-event-loop-0
I took the sample-Code and removed the Certificate/Keypair and changed the URL to opc.tcp://opcua.demo-this.com:51210/UA/SampleServer since the public server doesn't need authorization:
SecurityPolicy securityPolicy = clientExample.getSecurityPolicy();
EndpointDescription[] endpoints = UaTcpStackClient.getEndpoints("opc.tcp://opcua.demo-this.com:51210/UA/SampleServer").get();
EndpointDescription endpoint = Arrays.stream(endpoints)
.filter(e -> e.getSecurityPolicyUri().equals(securityPolicy.getSecurityPolicyUri()))
.findFirst().orElseThrow(() -> new Exception("no desired endpoints returned"));
logger.info("Using endpoint: {} [{}]", endpoint.getEndpointUrl(), securityPolicy);
loader.load();
OpcUaClientConfig config = OpcUaClientConfig.builder()
.setApplicationName(LocalizedText.english("eclipse milo opc-ua client"))
.setApplicationUri("urn:eclipse:milo:examples:client")
//.setCertificate(loader.getClientCertificate())
//.setKeyPair(loader.getClientKeyPair())
.setEndpoint(endpoint)
.setIdentityProvider(clientExample.getIdentityProvider())
.setRequestTimeout(uint(5000))
.build();
return new OpcUaClient(config);
What am I missing?
Greetings and thanks in advance :)
