Created on 03-05-2017 02:32 PM - edited 09-16-2022 04:11 AM
I have installed as per the documentation. Also i have done the port forwarding to 8081.
when i access the view from the URL http://sandbox.hortonworks.com:8081/storm-demo-web-app/ not able to see the html page
Response from chrome:-
GET http://sandbox.hortonworks.com:8081/storm-demo-web-app/ net::ERR_CONNECTION_RESET
Output of Curl
[root@sandbox storm-demo-webapp]# curl http://172.17.0.2:8081/storm-demo-app/index.html
<title>Error 404 </title>
Problem accessing /storm-demo-app/index.html. Reason:
Kindly guide me to proceed further.
Created 03-05-2017 02:44 PM
Have you build the project and started it as following?
mvn clean package mvn jetty:run -Djetty.port=8081
. Please verify if the port is opened for listening?
netstat -tnlpa | grep 8081
. Please make sure that you have unblocked port 8081 on your virtualbox as described in the following link: https://community.hortonworks.com/articles/65914/how-to-add-ports-to-the-hdp-25-virtualbox-sandbox.h...
Created 03-05-2017 02:58 PM
I have build using the following
VERSION=`hdp-select status hadoop-client | sed 's/hadoop-client - \([0-9]\.[0-9]\).*/\1/'` sudo git clone https://github.com/hortonworks-gallery/iotdemo-service.git /var/lib/ambari-server/resources/stacks/HDP/$VERSION/services/IOTDEMO #(Optional) Zeppelin already comes installed on HDP 2.4 sandbox #sudo git clone https://github.com/hortonworks-gallery/ambari-zeppelin-service.git /var/lib/ambari-server/resources/stacks/HDP/$VERSION/services/ZEPPELIN #on sandbox sudo service ambari restart
Port Forwarding --> 8091 is given
Port is working. please see the output
netstat -tnlpa | grep 8081 tcp 0 0 :::8081 :::* LISTEN 9289/java
Created 03-06-2017 04:32 AM
Good that the port 8081 is actually opened. So now in order to access that port outside the VM (sandbox) you should add that port in the Virtual Machine N/W configuration as mentioned in the following image. (From previously shared link)
Port Forwarding for port 8081 need to be enabled.
Created 03-06-2017 05:12 AM
Now i'am able to launch the IOT Demo UI, but i'm facing the Websocket error as attached.
Can you tell me what could be wrong ??
Created 03-30-2017 08:34 AM
Usually it is best practice to have one thread dedicated to one specific query so that the thread becomes more beneficial for the readers.
As your original issue is resolved by Port Forwarding ennoblement to 8081 hence i will suggest you to please mark this thread as Answered (Accepted) and open a new thread for the websocket issue.