| Re: [milo-dev] Unable to connect to opc-ua server |
_______________________________________________Hi,
Thanks for the response.
But, I didn’t come across this error till now when I was using opc-ua node-red client or any other client tools, It started only after implementing the opc-ua client using milo sdk. Sometimes opc-ua client project works properly but issue occurs only when I close the application and start it again.
What are the possibilities to get this error ?
Do I need to include any addition code to close the connection gracefully like closing all channels and handlers and exit from the opc-client application ?
Regards,
Pramod
From: milo-dev <milo-dev-bounces@xxxxxxxxxxx> on behalf of Kevin Herron <kevinherron@xxxxxxxxx>
Reply-To: milo developer discussions <milo-dev@xxxxxxxxxxx>
Date: Thursday, 15 April 2021 at 5:54 PM
To: milo developer discussions <milo-dev@xxxxxxxxxxx>
Subject: Re: [milo-dev] Unable to connect to opc-ua server
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I think you should be asking for support from whoever makes this server.
It does not seem there is anything wrong with your client implementation - you are just getting a TCP-level connection refused error from the server.
That your other clients can't connect either when this happens is further evidence the problem is with the server.
On Thu, Apr 15, 2021 at 3:14 AM RB, Pramod Kumar <pramodkumar.rb@xxxxxxxxxxxxxxxx> wrote:
Hi Team,
I am facing some issue while connecting to OPC-UA server from OPC-UA client written using Eclipse milo library. Sometimes I will get the error as mentioned below and communication will not establish until I restart my pc and then launch opc-ua server software again and also whenever I see this error even other opc-ua clients like prosys browser & UaExpert tools are also unable to connect to OPC-UA server software until I restart the machine.
This is blocker for my work, please help me to fix this issue.
Regards,
Pramod
15:31:55.235 [milo-shared-thread-pool-3] DEBUG io.netty.buffer.ByteBufUtil - -Dio.netty.maxThreadLocalCharBufferSize: 16384
15:31:57.439 [milo-shared-thread-pool-3] DEBUG org.eclipse.milo.opcua.stack.client.ChannelFsm - [1] S(Connecting) x E(ConnectFailure) = S'(ReconnectWait)
15:31:57.439 [milo-shared-thread-pool-2] DEBUG org.eclipse.milo.opcua.stack.client.ChannelFsm - [0] S(Connecting) x E(ConnectFailure) = S'(ReconnectWait)
15:31:57.443 [milo-shared-thread-pool-1] DEBUG org.eclipse.milo.opcua.stack.client.ChannelFsm - [1] S(ReconnectWait) x E(Disconnect) = S'(NotConnected)
15:31:57.445 [milo-shared-thread-pool-4] DEBUG org.eclipse.milo.opcua.stack.client.ChannelFsm - [0] S(ReconnectWait) x E(Disconnect) = S'(NotConnected)
15:31:57.451 [milo-shared-thread-pool-0] DEBUG org.eclipse.milo.opcua.stack.client.ChannelFsm - [2] S(NotConnected) x E(Connect) = S'(Connecting)
15:31:57.451 [milo-shared-thread-pool-1] DEBUG org.eclipse.milo.opcua.stack.client.ChannelFsm - [3] S(NotConnected) x E(Connect) = S'(Connecting)
15:31:59.461 [milo-shared-thread-pool-0] DEBUG org.eclipse.milo.opcua.stack.client.ChannelFsm - [2] S(Connecting) x E(ConnectFailure) = S'(ReconnectWait)
15:31:59.465 [milo-shared-thread-pool-1] DEBUG org.eclipse.milo.opcua.stack.client.ChannelFsm - [2] S(ReconnectWait) x E(Disconnect) = S'(NotConnected)
15:31:59.466 [milo-shared-thread-pool-0] DEBUG org.eclipse.milo.opcua.stack.client.ChannelFsm - [3] S(Connecting) x E(ConnectFailure) = S'(ReconnectWait)
15:31:59.469 [milo-shared-thread-pool-3] DEBUG org.eclipse.milo.opcua.stack.client.ChannelFsm - [3] S(ReconnectWait) x E(Disconnect) = S'(NotConnected)
15:31:59.479 [main] ERROR com.thermofisher.cellbio.ebr.instrument.connect.opc_ua_client.ClientRunner - Error getting client: io.netty.channel.AbstractChannel$AnnotatedConnectException: Connection refused: no further information: /localhost:48010
org.eclipse.milo.opcua.stack.core.UaException: io.netty.channel.AbstractChannel$AnnotatedConnectException: Connection refused: no further information: /localhost:48010
at org.eclipse.milo.opcua.stack.client.transport.uasc.ClientChannelFsm$ClientChannelActions.lambda$connect$0(ClientChannelFsm.java:129)
at io.netty.util.concurrent.DefaultPromise.notifyListener0(DefaultPromise.java:578)
at io.netty.util.concurrent.DefaultPromise.notifyListeners0(DefaultPromise.java:571)
at io.netty.util.concurrent.DefaultPromise.notifyListenersNow(DefaultPromise.java:550)
at io.netty.util.concurrent.DefaultPromise.notifyListeners(DefaultPromise.java:491)
at io.netty.util.concurrent.DefaultPromise.setValue0(DefaultPromise.java:616)
at io.netty.util.concurrent.DefaultPromise.setFailure0(DefaultPromise.java:609)
at io.netty.util.concurrent.DefaultPromise.tryFailure(DefaultPromise.java:117)
at io.netty.channel.nio.AbstractNioChannel$AbstractNioUnsafe.fulfillConnectPromise(AbstractNioChannel.java:321)
at io.netty.channel.nio.AbstractNioChannel$AbstractNioUnsafe.finishConnect(AbstractNioChannel.java:337)
at io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:707)
at io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:655)
at io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:581)
at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:493)
at io.netty.util.concurrent.SingleThreadEventExecutor$4.run(SingleThreadEventExecutor.java:989)
at io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74)
at java.lang.Thread.run(Thread.java:748)
Caused by: io.netty.channel.AbstractChannel$AnnotatedConnectException: Connection refused: no further information: /localhost1:48010
Caused by: java.net.ConnectException: Connection refused: no further information
at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)
at sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:715)
at io.netty.channel.socket.nio.NioSocketChannel.doFinishConnect(NioSocketChannel.java:330)
at io.netty.channel.nio.AbstractNioChannel$AbstractNioUnsafe.finishConnect(AbstractNioChannel.java:334)
at io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:707)
at io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:655)
at io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:581)
at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:493)
at io.netty.util.concurrent.SingleThreadEventExecutor$4.run(SingleThreadEventExecutor.java:989)
at io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74)
at java.lang.Thread.run(Thread.java:748)
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