topic Re: Couldn't resolve host name and Failure when receiving data from the peer error in Alteryx Server Discussions

Couldn't resolve host name and Failure when receiving data from the peer error

AndrewCrayford — Mon, 29 Jun 2020 14:47:49 GMT

I have set up an workflow on my laptop which download images and Links from am email in gmail and it works correctly.

When i transfer the workflow to the Alteryx server i am getting the following errors

Error transferring data: Couldn't resolve host name - when i try to download the images

Error transferring data: Failure when receiving data from the peer - When I try to download the link

I can view these links in Internet explorer and it opens correctly.

Re: Couldn't resolve host name and Failure when receiving data from the peer error

AndrewCrayford — Tue, 30 Jun 2020 08:42:49 GMT

Any one how to fix this so the workflow will run correctly on the Alteryx server?

Re: Couldn't resolve host name and Failure when receiving data from the peer error

c-lopez — Wed, 01 Jul 2020 16:45:15 GMT

There are quite a few things that can be happening here, could you elaborate a bit on your workflow please?
Include screenshots and perhaps an example link if possible so that I may try it on my server

Re: Couldn't resolve host name and Failure when receiving data from the peer error

AndrewCrayford — Mon, 06 Jul 2020 11:02:22 GMT

The workflow will take all the image link and url links from an email in gmail, and download the link in order to see if the link is valid. It the link it working then it will give an ok message and if the link is not working then it will give an error 404 message. I just a bit confuse why this workflow was ok on my laptop but not on the Alteryx server.

Here are some screen shots of the workflow.

Re: Couldn't resolve host name and Failure when receiving data from the peer error

AndrewCrayford — Tue, 14 Jul 2020 09:07:33 GMT

Can anyone help me on this as I would like to host this workflow onto the gallery for other people to use?

Re: Couldn't resolve host name and Failure when receiving data from the peer error

c-lopez — Wed, 15 Jul 2020 20:29:42 GMT

This is because the computer that has Server installed on it does not know about the URL you are using to pull data. This can be because the specific URL is being blocked by IT or simply that the server has been configured to only accept connections from sources internal to your organization.

You can work with the Server admin and IT to either whitelist the URL you want to use or to add the IP address of the website you want to reach to the DNS lookup table of the network that the server is connected to.

Re: Couldn't resolve host name and Failure when receiving data from the peer error

AndrewCrayford — Thu, 05 Nov 2020 15:55:10 GMT

I have set up the workflow using this version of Alteryx

But when I put the same workflow on the server which has the following version

The Alteryx Server is not able to download URL which has over 550 characters but the Alteryx designer can. It works on the links which are under 500 characters, there all from the same domain.

I am not sure why would this be an issue?
Is the server version set up different to the designer version? what could be causing the issue?

Re: Couldn't resolve host name and Failure when receiving data from the peer error

AndrewCrayford — Mon, 09 Nov 2020 09:12:49 GMT

Just wondering if anyone can help me? As I want this workflow to go live on the sever but this is a blocker at the moment

Re: Couldn't resolve host name and Failure when receiving data from the peer error

raychase — Tue, 10 Nov 2020 00:42:42 GMT

Sounds like a firewall on the Server.

Re: Couldn't resolve host name and Failure when receiving data from the peer error

AndrewCrayford — Tue, 10 Nov 2020 09:09:43 GMT

If I open a web browsers on the server and paste the same link in which is over 500 characters, it displays the web page. So how can it be the firewall issue if the link works in a browsers?

Re: Couldn't resolve host name and Failure when receiving data from the peer error

andrewdatakim — Wed, 11 Nov 2020 00:25:07 GMT

A simple check that I always run is are you adding anything to your URL field? If the value for that field is set to 500 you may be cutting of the remainder of the URL which could be giving an error. This happens to me all the time. Another quick check on the firewall side is adjusting the run as User in your workflow settings if you are able. Sometimes the limitation on the server can be user specific (i.e a service account).

Re: Couldn't resolve host name and Failure when receiving data from the peer error

AndrewCrayford — Fri, 13 Nov 2020 09:43:20 GMT

The link is coming from an email before Alteryx is downloading the link,. I am not added anything on to the link at all and the field is set to a length of 1073741823.

I logged on to the Alteryx server using an service account.

The network people thinks is an Alteryx issue and not a firewall issue, so i trying to find out which it is and how to fix it

Is there any different between the Alteryx Designer on my laptop and the Alteryx Designer on the Server?

Re: Couldn't resolve host name and Failure when receiving data from the peer error

andrewdatakim — Sun, 15 Nov 2020 20:25:03 GMT

Hi @AndrewCrayford ,

From the software itself there shouldn't be any difference. You can check the build version differential to verify otherwise it will be down to configuration. Are you able to log into the Server with your user or adjust the Run As for the workflow to your username? This will eliminate some general permission differentials. The next option is just to open Designer on the server and look through the logs after running. You can use Lumbermill to get more detailed information. This can be used to give more information for the Alteryx Support team to help you.