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getting java.util.concurrent.TimeoutException and java.util.concurrent.RejectedExecutionException after the thingworx session is expired on client (java edge sdk)

kborkar
1-Newbie

getting java.util.concurrent.TimeoutException and java.util.concurrent.RejectedExecutionException after the thingworx session is expired on client (java edge sdk)

Exception are mentioned below:

Connected thingworx with java through java edge sdk and ran a program continuously but after some time it starts giving below two exceptions:

(Our guess is, might be thingworx session timeout.)


java.util.concurrent.TimeoutException: timeout waiting for websocket handshake to complete

  at com.thingworx.communications.client.connection.netty.NettyClientConnectionFactory$HandshakeCompletionNotifier.await(NettyClientConnectionFactory.java:565) ~[thingworx-communications-client-java-sdk-6.0.1.server.build-b255.jar:na]

  at com.thingworx.communications.client.connection.netty.NettyClientConnectionFactory.createConnection(NettyClientConnectionFactory.java:308) ~[thingworx-communications-client-java-sdk-6.0.1.server.build-b255.jar:na]

  at com.thingworx.communications.client.endpoints.ClientCommunicationEndpoint.refillConnections(ClientCommunicationEndpoint.java:225) ~[thingworx-communications-client-java-sdk-6.0.1.server.build-b255.jar:na]

  at com.thingworx.communications.common.endpoints.monitor.ConnectivityMonitorTask.dutyCycleOn(ConnectivityMonitorTask.java:150) [thingworx-communications-client-java-sdk-6.0.1.server.build-b255.jar:na]

  at com.thingworx.communications.common.endpoints.monitor.ConnectivityMonitorTask.run(ConnectivityMonitorTask.java:264) [thingworx-communications-client-java-sdk-6.0.1.server.build-b255.jar:na]

  at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source) [na:1.8.0_66]

  at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) [na:1.8.0_66]

  at java.lang.Thread.run(Unknown Source) [na:1.8.0_66]

java.util.concurrent.RejectedExecutionException: event executor terminated

  at io.netty.util.concurrent.SingleThreadEventExecutor.reject(SingleThreadEventExecutor.java:706) ~[netty-all-4.0.30.Final.jar:4.0.30.Final]

  at io.netty.util.concurrent.SingleThreadEventExecutor.addTask(SingleThreadEventExecutor.java:298) ~[netty-all-4.0.30.Final.jar:4.0.30.Final]

  at io.netty.util.concurrent.SingleThreadEventExecutor.execute(SingleThreadEventExecutor.java:689) ~[netty-all-4.0.30.Final.jar:4.0.30.Final]

  at io.netty.channel.AbstractChannel$AbstractUnsafe.register(AbstractChannel.java:421) ~[netty-all-4.0.30.Final.jar:4.0.30.Final]

  at io.netty.channel.SingleThreadEventLoop.register(SingleThreadEventLoop.java:60) [netty-all-4.0.30.Final.jar:4.0.30.Final]

  at io.netty.channel.SingleThreadEventLoop.register(SingleThreadEventLoop.java:48) [netty-all-4.0.30.Final.jar:4.0.30.Final]

  at io.netty.channel.MultithreadEventLoopGroup.register(MultithreadEventLoopGroup.java:64) [netty-all-4.0.30.Final.jar:4.0.30.Final]

  at io.netty.bootstrap.AbstractBootstrap.initAndRegister(AbstractBootstrap.java:315) [netty-all-4.0.30.Final.jar:4.0.30.Final]

  at io.netty.bootstrap.Bootstrap.doConnect(Bootstrap.java:134) [netty-all-4.0.30.Final.jar:4.0.30.Final]

  at io.netty.bootstrap.Bootstrap.connect(Bootstrap.java:116) [netty-all-4.0.30.Final.jar:4.0.30.Final]

  at io.netty.bootstrap.Bootstrap.connect(Bootstrap.java:97) [netty-all-4.0.30.Final.jar:4.0.30.Final]

  at com.thingworx.communications.client.connection.netty.NettyClientConnectionFactory.createConnection(NettyClientConnectionFactory.java:305) [thingworx-communications-client-java-sdk-6.0.1.server.build-b255.jar:na]

  at com.thingworx.communications.client.endpoints.ClientCommunicationEndpoint.refillConnections(ClientCommunicationEndpoint.java:225) [thingworx-communications-client-java-sdk-6.0.1.server.build-b255.jar:na]

  at com.thingworx.communications.common.endpoints.monitor.ConnectivityMonitorTask.dutyCycleOn(ConnectivityMonitorTask.java:150) [thingworx-communications-client-java-sdk-6.0.1.server.build-b255.jar:na]

  at com.thingworx.communications.common.endpoints.monitor.ConnectivityMonitorTask.run(ConnectivityMonitorTask.java:264) [thingworx-communications-client-java-sdk-6.0.1.server.build-b255.jar:na]

  at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source) [na:1.8.0_66]

  at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) [na:1.8.0_66]

  at java.lang.Thread.run(Unknown Source) [na:1.8.0_66]

18:36:30.430 [Client-EndpointMonitor-156] DEBUG c.t.c.c.e.ClientCommunicationEndpoint - Clearing endpoint authentication data [id: 13628]

18:36:30.430 [Client-EndpointMonitor-156] INFO  c.t.c.c.e.ClientCommunicationEndpoint - Needed to refill connections on client endpoint [id: 13628] : [active: 0, max: 1]

18:36:30.430 [Client-EndpointMonitor-156] WARN  io.netty.channel.AbstractChannel - Force-closing a channel whose registration task was not accepted by an event loop: [id: 0xa29bd793]

6 REPLIES 6
posipova
20-Turquoise
(To:kborkar)

Could you please provide your configuration information? Do you have an SSL encryption - if so, please ensure the URL syntax is correct (wss vs ws)?

supandey
19-Tanzanite
(To:kborkar)

Kedar, in addition to what Polina mentioned, could you also share what sort of operation service is performing/actions performed while the connection is working. It appears as though the blocking operation in thread is timing out.

ankigupta
5-Regular Member
(To:kborkar)

Hi Kedar Borkar​, Please check following article containing same error: https://support.ptc.com/appserver/cs/view/solution.jsp?n=CS250773&lang=en_US

I hope it helps.

Thanks,

Ankit Gupta

Thanks for the reply,

Ankit Gupta Initially i tried connecting thingworx with "wss://ThingWorxServer:443/Thingworx/WS" but i was getting error message.

So, i tried connecting using ws and it worked.

please guide me how to create wss connection with thingworx and avoid that ssl error.

Thanks

ankigupta
5-Regular Member
(To:kborkar)

Hi Kedar,

Please refer to following article for detail on how to setup ssl in ThingWorx: https://support.ptc.com/appserver/cs/view/solution.jsp?n=CS193947&lang=en_US

Thanks,

Ankit Gupta

Kedar,

Any update on this? Was Ankit Gupta's post helpful? If so, could you click on the "correct answer" or "mark as helpful" button and let us know?

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