question Re: Error while installing Data Services in Support Questions

Error while installing Data Services

Oren — Tue, 21 Apr 2026 06:21:23 GMT

We have Cloudera Private Cloud 7.1.9

When trying to install Data Services, we get this error:

"unable to resolve either the CM url, CDP console, or localhost"

We verified DNS settings and the hostname is resolved correctly.

What can the issue be? where can we find logs with additional details?

Re: Error while installing Data Services

DianaTorres — Thu, 20 Feb 2025 16:14:11 GMT

@Oren Welcome to the Cloudera Community!

To help you get the best possible solution, I have tagged our CDP experts @venkatsambath @upadhyayk04 who may be able to assist you further.

Please keep us updated on your post, and we hope you find a satisfactory solution to your query.

Re: Error while installing Data Services

upadhyayk04 — Thu, 20 Feb 2025 17:43:49 GMT

Hello @Oren

Thank you for reaching out to the community

Please double-check the following especially vault.localhost.localdomain’s ping should be resolved

https://docs.cloudera.com/cdp-private-cloud-data-services/1.5.4/installation-ecs/topics/cdppvc-installation-ecs-steps.html

Checks to make sure there are less than 3 nameserver entries in the /etc/resolv.conf file, and checks the connections to the Cloudera Manager cluster and the CDP console. It also checks to see if vault.localhost.localdomain’s ping can be resolved. If not, it is likely that the host /etc/nsswitch.conf file is misconfigured. If this inspection fails: Check the /etc/resolv.conf and /etc/nsswitch.conf files and ensure that /etc/resolv.conf does not contain 3 or more nameservers, and that /etc/nsswitch.conf must contain myhostname under the hosts field. Check to see if the connections were resolved correctly. If connection to the CDP console fails, check to see if your DNS wildcard is configured properly.

Let us know if you have any further queries

Re: Error while installing Data Services

DianaTorres — Fri, 28 Feb 2025 16:06:58 GMT

@Oren Has the reply helped resolve your issue? If so, please mark the appropriate reply as the solution, as it will make it easier for others to find the answer in the future. Thanks.

Re: Error while installing Data Services

shaihavivqlik — Sun, 02 Mar 2025 15:50:11 GMT

Hi @DianaTorres
unfortunately all listed above is configured correctly.

is there any log where I can check the exact error ?
thanks

shai.

Re: Error while installing Data Services

upadhyayk04 — Mon, 03 Mar 2025 08:21:02 GMT

Hello @shaihavivqlik

That's really strange. Usually, this error occurs when we cannot lookup

vault.localhost.localdomain

Can you check your /etc/hosts as well? Also, try pinging your CM server as well

Something is for sure wrong in the DNS records. I don't we can check any logs as this is failing at the pre-reqs itself

Re: Error while installing Data Services

shaihavivqlik — Thu, 06 Mar 2025 16:43:45 GMT

ping to CM server works just fine, using DNS or IP address.

Re: Error while installing Data Services

upadhyayk04 — Fri, 07 Mar 2025 04:48:43 GMT

Hello,

Thank you for your update

Can you please confirm if you are able to ping localhost

# nslookup localhost

How many nameservers are present in /etc/resolv.conf

Re: Error while installing Data Services

shaihavivqlik — Fri, 07 Mar 2025 07:56:41 GMT

I get this when running nslookup localhost

Non-authoritative answer:
Name: localhost
Address: 127.0.0.1
** server can't find localhost: SERVFAIL

I have 1 nameserver in resolv.conf

Re: Error while installing Data Services

upadhyayk04 — Fri, 07 Mar 2025 09:28:39 GMT

So here is the error localhost is not resolving

Please fix the /etc/hosts from any of the working node

Check if the below lines are added or not

127.0.0.1 localhost localhost.localdomain localhost4 localhost4.localdomain4
::1 localhost localhost.localdomain localhost6 localhost6.localdomain6

Re: Error while installing Data Services

shaihavivqlik — Sun, 09 Mar 2025 09:46:57 GMT

this is how the hosts file looks:
127.0.0.1 localhost localhost.localdomain localhost4 localhost4.localdomain4
::1 localhost localhost.localdomain localhost6 localhost6.localdomain6

Re: Error while installing Data Services

upadhyayk04 — Sun, 09 Mar 2025 14:12:56 GMT

Can you please fix the localhost thing

nslookup localhost should resolve

Re: Error while installing Data Services

Rafiy — Mon, 10 Mar 2025 07:40:17 GMT

we have passed all pre-requisistes, still facint the same issue

Re: Error while installing Data Services

upadhyayk04 — Mon, 10 Mar 2025 07:41:23 GMT

Hello @Rafiy

Can you please which issue are you facing now?

Same one

"unable to resolve either the CM url, CDP console, or localhost"

Re: Error while installing Data Services

upadhyayk04 — Wed, 12 Mar 2025 05:42:14 GMT

Hello @shaihavivqlik

Can you also verify if the wildcard dns is set up correctly

*.apps.myhostname.com

https://docs.cloudera.com/cdp-private-cloud-data-services/1.5.4/installation-ecs/topics/cdppvc-installation-ds-checklist.html

I faced the same error as you this time, and I had the above mentioned problem so please double check this as well

Re: Error while installing Data Services

DianaTorres — Mon, 17 Mar 2025 18:47:31 GMT

@Rafiy Has the reply helped resolve your issue? If so, please mark the appropriate reply as the solution, as it will make it easier for others to find the answer in the future. Thanks.