[NIFI-6234] ConnectWebsocket processor not able to connect to websocket server

• Type: Bug
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Affects Version/s: 1.9.1
• Fix Version/s: 1.9.1
• Component/s: Configuration
• Environment: OS : Linux ; JDK : 1.8.0 ; NiFi Version : 1.9.1
• Assignee: Unassigned
• Reporter: Rupesh Kumar
• Created: 23/Apr/19 09:48
• Updated: 23/Apr/19 09:48

Description

I am trying to connect to websocket server using ConnectWebSocket Processor.

My server resides behind a proxy.

I have done proxy configuration in bootstrap.conf as well as nifi.properties.

In bootstrap.conf, i filled below properties with the value of proxy server.

-------------bottstrap.conf-------------

java.arg.20=-Dhttps.proxyHost=<<proxy server host>>
java.arg.21=-Dhttps.proxyPort=<<proxy server port>>
java.arg.22=-Dhttp.proxyHost=<<proxy server host>>
java.arg.23=-Dhttp.proxyPort=<<proxy server port>>
java.arg.24=-Dhttp.nonProxyHosts="localhost|127.0.0.1|10.218..|"

----------------------------------------------------------------------------------

in nifi.properties, I updated below value:

nifi.web.proxy.host=<<proxy host>>

----------------------------------------------------------------------------------

Still I am bot able to connect to Websocket server.

PFB logs for same.

--------------------------------------------------logs----------------------------------

Failed to connect ws://echo.websocket.org due to: java.util.concurrent.ExecutionException: org.eclipse.jetty.websocket.api.UpgradeException: 0 null: org.apache.nifi.processor.exception.ProcessException: Failed to register processor to WebSocket service due to: java.io.IOException: Failed to connect ws://echo.websocket.org due to: java.util.concurrent.ExecutionException: org.eclipse.jetty.websocket.api.UpgradeException: 0 null

org.apache.nifi.processor.exception.ProcessException: Failed to register processor to WebSocket service due to: java.io.IOException: Failed to connect ws://echo.websocket.org due to: java.util.concurrent.ExecutionException: org.eclipse.jetty.websocket.api.UpgradeException: 0 null

        at org.apache.nifi.processors.websocket.AbstractWebSocketGatewayProcessor.onTrigger(AbstractWebSocketGatewayProcessor.java:180)

        at org.apache.nifi.controller.StandardProcessorNode.onTrigger(StandardProcessorNode.java:1162)

        at

        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)

        at java.lang.Thread.run(Thread.java:748)

Caused by: java.io.IOException: Failed to connect ws://echo.websocket.org due to: java.util.concurrent.ExecutionException: org.eclipse.jetty.websocket.api.UpgradeException: 0 null