Nagios Support Forum

will try to run my script with advised changes... in meantime what would you recommend for deleting hosts by utilizing XI scripts as I do now or REST API?
if REST API is preferred way do you mind to provide a sample how would I run it by cron?

Thanks!

a quick update: using XI scripts is pretty much direct deletes into database so may not be a best practice so made an attempt to utilize REST API delete and got the following error:

[nagios@esu4v385 nagios]$ curl -k -XDELETE "http://esu4v385/nagiosxi/api/v1/config/ ... CVT3511956"
{
"error": "Host cannot be deleted using this method. Must be deleted through the CCM."
}

but the host looks like does not have any services or any other dependencies:

Please advise!

Since that Host object has relationships with both the DRT_CVT and MCY-708-CST Hostgroups, you will first need to eliminate those dependencies before you can delete the Host object.

Since the API doesn't currently allow you to cherry-pick specific hosts out of hostgroups, you would essentially need to GET those hostgroups, modify them to not include CVT3511956, then delete and re-create them.

where do you see item labeled as 'Dependent relationship' in the output?
In my example there is not a 'Dependent relationship' that should prohibit deletion...

That aside, @lmiltchev tested this and even if there is a host->hostgroup and hostgroup->host dependency for a given host it shouldn't affect API deletion. I didn't have any problems deleting a host in that configuration.

You could try adding force=1 to your API request and see if that makes a difference. Your assessment is correct as far as I can tell that there shouldn't be any relationships preventing this host from being deleted.

Thanks @mcapra!

nagwindmon, what is the Nagios XI version that you are currently using? It is possible that this is a bug with API, that was fixed in the later versions.

My test host was added to 3 hostgroups:
but I was able to delete it just fine via the REST API.

Nagios XI 5.2.0

There were MANY, MANY bug fixes, and added features since 5.2.0. I would strongly recommend upgrading to the latest. You particular issue was probably fixed in 5.2.8. I see this in the changelog:

- Fixed API not deleting some hosts correctly [TPS#8500] -BH

https://assets.nagios.com/downloads/nag ... NGES-5.TXT

Looking at the task, I see this:

Description: Using rest Api cannot delete a host that is a member of a hostgroup

Steps To Reproduce:

1) Add a host and put it in a hostgroup
2) Try to delete the host using this cmd

curl -XDELETE "https://nagios/nagiosxi/api/v1/config/h ... lyconfig=1 "

3) results in -

"error": "Host cannot be deleted using this method. Must be deleted through the CCM."

got it, thanks lmiltchev! as always very much appreciate your inputs on this forum

Did you have any other questions or are we okay closing this?