Error while installing Data Services

[#1]

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?

[#2]

@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.

[#3]

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-insta...

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

[#4]

@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.

[#5]

Hi @DianaTorres 
unfortunately all listed above is configured correctly.

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

shai.

[#6]

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

[#7]

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

[#8]

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

[#9]

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

[#10]

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