question Re: Connection refused for HDF sandbox in Support Questions

Connection refused for HDF sandbox

lucy_zhang_us — Fri, 19 May 2017 05:42:45 GMT

I have been able to connect to HDP sanbox by ssh -p 2222. But with the new HDF sandbox, I was stuck again with the "connection refused" error. After I brought up the sandbox, I tried the URL "http://10.0.2.15:18888/" but just got timeout error. Any idea ? @mqureshi

Re: Connection refused for HDF sandbox

ssahi — Sat, 20 May 2017 00:29:27 GMT

@Lucy zhang

Is your VM setup to use NAT? I've got the HDF Sandbox running right now, and have a 127.0.0.1 IP.

Re: Connection refused for HDF sandbox

lucy_zhang_us — Sat, 20 May 2017 00:46:04 GMT

Yes, the VM setup is using NAT, After I started the VM. Before press ALT+F5, The VMware says "please open a browser's address field: http://10.0.2.15:18888/. However I got "connection time out " error. I press ALT+F5 to log in the Vmware as root user. Then tried "ssh -p 2222 root@127.0.0.1" it doesn't work. @Sonu Sahi Could you help check if you did the same but got different result ? Thanks

Re: Connection refused for HDF sandbox

ssahi — Sun, 18 Aug 2019 09:26:16 GMT

Hi @Lucy zhang

I'm using VirtualBox, but, I think the NAT setup is all that is required. I did not do anything special for my setup. Using the VirtualBox menu, I imported the appliance which automatically setup the NAT configuration. When the machine finished installing, I started the machine and saw this screen:

One thine to note is the ports on the HDF Sandbox are different compared to the HDP Sandbox. While 2222 was correct for SSH'ing into the HDP Sandbox, HDF Sandbox actually uses 12222. I use the following command to SSH into the HDF Sandbox: ssh root@127.0.0.1 -p 12222

Re: Connection refused for HDF sandbox

lucy_zhang_us — Sat, 20 May 2017 06:04:30 GMT

Thank you @Sonu Sahi for your response. I'm actually also using virtual box. Attached is my screenshot: NOt sure what's wrong. My network configuration also NAT.

Re: Connection refused for HDF sandbox

lucy_zhang_us — Sat, 20 May 2017 06:54:13 GMT

Finally I figured out the reason. I downloaded the HDF sandbox vmware image. When I click the file to open, it pop up and automatically opened by virtualbox which can't work correctly for the network part. Realized this, I turned off and opened in VMWare. Issue gone. Thanks for your help.

Re: Connection refused for HDF sandbox

ssahi — Sat, 20 May 2017 07:02:14 GMT

Awesome, glad you are back up and running 🙂

Re: Connection refused for HDF sandbox

lucy_zhang_us — Tue, 23 May 2017 07:02:08 GMT

Hi @Sonu Sahi . Any idea with below error? I tried this script in both virtualBox and Vmware. Neither works.

In VirtualBox, it complains vboxmanage not found.

Thanks

[root@sandbox-hdf ~]# ./auto_scripts/launch_ambari_ui.sh HDF

Sandbox Virtual Environment Selection Menu

'Docker' - is my environment

'VirtualBox' - is my environment

Enter the 'virtual environment' for HDF Sandbox: VirtualBox

You entered HDF Sandbox runs on: VirtualBox Start VirtualBox VM's Docker HDF Sandbox... ./auto_scripts/virtualbox-scripts/virtualbox_sandbox_hdf.sh: line 3: vboxmanage: command not found Starting Ambari Services, may take 2.5 minutes...

Re: Connection refused for HDF sandbox

ssahi — Tue, 23 May 2017 21:16:39 GMT

Can you get to the main welcome page? http://127.0.0.1:18888 or try also http://127.0.0.1:9080

Re: Connection refused for HDF sandbox

lucy_zhang_us — Sun, 18 Aug 2019 09:26:08 GMT

Yes, I'm able to log on http://127.0.0.1:9080 and http://127.0.0.1:18888. Can't open http://sandbox-hdf.hortonworks.com:19090/nifi

Have issue with the tutorial script . It says virtualBox command not found. @Sonu Sahi

Re: Connection refused for HDF sandbox

lucy_zhang_us — Wed, 24 May 2017 00:40:48 GMT

I'm able to open Nifi UI by http://localhost:19090/nifi/ . Maybe I can ignore the script error ?

Re: Connection refused for HDF sandbox

lucy_zhang_us — Wed, 24 May 2017 02:24:30 GMT

Same issue with script init_nifi_in_src_data.sh. Command not found. It's a pain. You don't have this issue ? @Sonu Sahi

Re: Connection refused for HDF sandbox

ssahi — Wed, 24 May 2017 02:34:37 GMT

No, I don't have this issue. I'm able to hit the nifi UI at http://127.0.0.1:19090/nifi/ without a problem

Re: Connection refused for HDF sandbox

lucy_tan — Tue, 15 Aug 2017 10:57:21 GMT

@Lucy zhang

Did you ever resolve this issue? I am having the same problem as you in Docker. Port 18888 works fine, but Nifi UI and the other ports are getting connection refused.

Re: Connection refused for HDF sandbox

shulegaa — Mon, 19 Mar 2018 00:40:39 GMT

I have the same error (using either IP address or /etc/hosts entry):

ssh root@sandbox-hdf.hortonworks.com -p 12222

ssh: connect to host sandbox-hdf.hortonworks.com port 12222: Connection refused

ssh root@172.17.0.2 -p 12222 -->

ssh: connect to host 172.17.0.2 port 12222: Connection refused

I am using a fresh Dockerized HDF sandbox installed (today) on Ubuntu 16.04 - with the Trucking IoT tutorial set up from here:

https://github.com/orendain/trucking-iot/tree/hadoop-summit-2017#setup-on-existing-hdf-hdp

The weird thing is that the 'shell-in-a-box' works fine (with either IP address or /etc/hosts entry):

http://sandbox-hdf.hortonworks.com:4200

http://172.17.0.2:4200

Anyone have any ideas on what might be amiss? Is this biting anyone else?

Thanks

Re: Connection refused for HDF sandbox

Shelton — Mon, 19 Mar 2018 01:01:33 GMT

@Steve Hofstra

Have a look at some note in learning ropes for sandbox

That should help