Nagios Support Forum

Posted: **Fri Oct 25, 2019 1:43 pm**

Hello team,

I am trying to isolate down hosts on nagiosxi specific host_group.
I use the below request of hostavailabilty:

curl "https://nagios_ip/nagiosxi/api/v1/objects/hostavailability?apikey=api_key&pretty=1&hostgroup=host_group_name&current_state=nin:0"

the output is always all the hosts inside that host_group including online ones.

so how can I isolate only the down one in that specific host_group.

thanks for your support,
Regards.

Posted: **Fri Oct 25, 2019 3:05 pm**

You would need to make a call to the objects/hostgroupmembers API end-point, and parse the JSON results somehow, in order to get the members of your hostgroup.

Example:

Code: Select all

curl -s -q -XGET "http://x.x.x.x/nagiosxi/api/v1/objects/hostgroupmembers?apikey=xxx&pretty=1&hostgroup_name=sensors" | grep 'host_name' | tr -d '"'
                    host_name: AKCP SensorProbe2
                    host_name: EM08T

You can filter the output even more via sed or awk in order to get the names only in a comma separated list. Then you can make a call to objects/hoststatus as such:

Code: Select all

curl "https://x.x.x.x/nagiosxi/api/v1/objects/hostavailability?apikey=xxx&pretty=&current_state=nin:0&name=in:HOST1,HOST2,HOST3"

Posted: **Mon Oct 28, 2019 12:06 pm**

Hello,

below curl is returning all the hosts in the server. it's not working properly.

curl "https://x.x.x.x/nagiosxi/api/v1/objects ... OST2,HOST3"

i have about hundred hosts in down state within a specific hostgroup.
how should i pass hostnames inside curl parameter "name="?

Regards.

Posted: **Mon Oct 28, 2019 12:34 pm**

My bad - I accidentally put hostavailability instead of hoststatus. Sorry about that. The correct command should be:

Code: Select all

curl "https://x.x.x.x/nagiosxi/api/v1/objects/hoststatus?apikey=xxx&pretty=1&current_state=nin:0&name=in:HOST1,HOST2,HOST3"

The hosts should be comma-separated. Let us know if this works for you.

Posted: **Tue Oct 29, 2019 8:52 am**

It didn't work , here is the output:

{
"recordcount": "0"
}

note: hosts' names contains dashes, and there are many hosts.

Posted: **Tue Oct 29, 2019 9:13 am**

I tried the following:

1. I set up a hostgroup, named "centos" with 4 members. All of the hosts have dashes in the name.

Code: Select all

define hostgroup {
    hostgroup_name    centos
    alias             centos
    members           CentOS-NCPA,CentOS-NRPE,CentOS-SNMP,CentOS-SSH
}

2. I disabled active checks on two of the hosts, and sent a passive "DOWN" check result, to bring them down.

example01.PNG

3. I grabbed the names of the hostgroup members via a REST API call:

Code: Select all

[root@main-nagios-xi libexec]# curl -s -XGET "http://x.x.x.x/nagiosxi/api/v1/objects/hostgroupmembers?apikey=xxx&pretty=1&hostgroup_name=centos" | grep 'host_name' | tr -d '"'
                    host_name: CentOS-NCPA
                    host_name: CentOS-SSH
                    host_name: CentOS-NRPE
                    host_name: CentOS-SNMP

4. I checked which of the members are in DOWN state:

Code: Select all

[root@main-nagios-xi libexec]# curl -s -XGET "http://x.x.x.x/nagiosxi/api/v1/objects/hoststatus?apikey=xxx&pretty=1&current_state=nin:0&name=in:CentOS-NCPA,CentOS-SSH,CentOS-NRPE,CentOS-SNMP"
{
    "recordcount": "2",
    "hoststatus": [
        {
            "@attributes": {
                "id": "726157"
            },
            "instance_id": "1",
            "host_id": "286",
            "name": "CentOS-NRPE",
            "display_name": "CentOS-NRPE",
            "address": "192.168.x.x",
            "alias": "CentOS-NRPE",
            "status_update_time": "2019-10-29 08:58:00",
            "status_text": "test",
            "status_text_long": {

            },
            "current_state": "1",
            "icon_image": "centos.png",
            "icon_image_alt": {

            },
            "performance_data": {

            },
            "should_be_scheduled": "0",
            "check_type": "1",
            "last_state_change": "2019-10-29 08:57:27",
            "last_hard_state_change": "2019-10-29 08:57:27",
            "last_hard_state": "1",
            "last_time_up": "2019-10-29 08:57:27",
            "last_time_down": "2019-10-17 09:17:15",
            "last_time_unreachable": "2019-08-16 11:55:17",
            "last_notification": "1969-12-31 18:00:00",
            "next_notification": "1969-12-31 18:00:00",
            "no_more_notifications": "0",
            "acknowledgement_type": "0",
            "current_notification_number": "0",
            "event_handler_enabled": "1",
            "process_performance_data": "1",
            "obsess_over_host": "1",
            "modified_host_attributes": "2",
            "event_handler": {

            },
            "check_command": "check_xi_host_ping!3000.0!80%!5000.0!100%!!!!",
            "normal_check_interval": "1",
            "retry_check_interval": "1",
            "check_timeperiod_id": "132",
            "has_been_checked": "1",
            "current_check_attempt": "1",
            "max_check_attempts": "5",
            "last_check": "2019-10-29 08:57:27",
            "next_check": "2019-10-29 08:58:00",
            "state_type": "1",
            "notifications_enabled": "1",
            "problem_acknowledged": "0",
            "passive_checks_enabled": "1",
            "active_checks_enabled": "0",
            "flap_detection_enabled": "1",
            "is_flapping": "0",
            "percent_state_change": "6.11842",
            "latency": "0.90374",
            "execution_time": "0",
            "scheduled_downtime_depth": "0",
            "notes": "44.8277446,-92.9438218",
            "notes_url": {

            },
            "action_url": {

            }
        },
        {
            "@attributes": {
                "id": "726156"
            },
            "instance_id": "1",
            "host_id": "284",
            "name": "CentOS-NCPA",
            "display_name": "CentOS-NCPA",
            "address": "192.168.x.x",
            "alias": "CentOS-NCPA",
            "status_update_time": "2019-10-29 09:00:42",
            "status_text": "test",
            "status_text_long": {

            },
            "current_state": "1",
            "icon_image": "ncpa.png",
            "icon_image_alt": {

            },
            "performance_data": {

            },
            "should_be_scheduled": "0",
            "check_type": "1",
            "last_state_change": "2019-10-29 08:56:58",
            "last_hard_state_change": "2019-10-29 08:56:58",
            "last_hard_state": "1",
            "last_time_up": "2019-10-29 08:56:58",
            "last_time_down": "2019-06-20 16:43:45",
            "last_time_unreachable": "2019-08-16 11:55:21",
            "last_notification": "1969-12-31 18:00:00",
            "next_notification": "1969-12-31 18:00:00",
            "no_more_notifications": "0",
            "acknowledgement_type": "0",
            "current_notification_number": "0",
            "event_handler_enabled": "1",
            "process_performance_data": "1",
            "obsess_over_host": "1",
            "modified_host_attributes": "2",
            "event_handler": {

            },
            "check_command": "check_xi_host_ping!3000.0!80%!5000.0!100%",
            "normal_check_interval": "5",
            "retry_check_interval": "1",
            "check_timeperiod_id": "132",
            "has_been_checked": "1",
            "current_check_attempt": "1",
            "max_check_attempts": "5",
            "last_check": "2019-10-29 08:56:58",
            "next_check": "2019-10-29 09:00:42",
            "state_type": "1",
            "notifications_enabled": "1",
            "problem_acknowledged": "0",
            "passive_checks_enabled": "1",
            "active_checks_enabled": "0",
            "flap_detection_enabled": "1",
            "is_flapping": "0",
            "percent_state_change": "0",
            "latency": "0.33262",
            "execution_time": "0",
            "scheduled_downtime_depth": "0",
            "notes": "44.8479039,-93.0428119",
            "notes_url": {

            },
            "action_url": {

            }
        }
    ]
}

Is this what you are doing?

Posted: **Tue Oct 29, 2019 11:18 am**

here is my curl request and the output:

curl -k -XGET "https://x.x.x.x/nagiosxi/api/v1/objects ... ea42102192"
{
"recordcount": "0"
}

Posted: **Tue Oct 29, 2019 11:39 am**

Hmm, I added a new test host, named "---i-00178cdd511":

Code: Select all

define host {
    host_name                ---i-00178cdd511
    use                      xiwizard_genericnetdevice_host
    address                  2.2.2.2
    max_check_attempts       5
    check_interval           5
    retry_interval           1
    check_period             xi_timeperiod_24x7
    contacts                 nagiosadmin
    notification_interval    60
    notification_period      xi_timeperiod_24x7
    icon_image               network_node.png
    statusmap_image          network_node.png
    _xiwizard                genericnetdevice
    register                 1
}

This is still working for me, even with the dashes.

Code: Select all

[root@main-nagios-xi libexec]# curl -s -XGET "http://x.x.x.x/nagiosxi/api/v1/objects/hoststatus?apikey=xxx&pretty=1&current_state=nin:0&name=in:CentOS-NCPA,CentOS-SSH,CentOS-NRPE,CentOS-SNMP,---i-00178cdd511" | grep name | grep -v display
            "name": "CentOS-NRPE",
            "name": "CentOS-NCPA",
            "name": "---i-00178cdd511",

I am not using SSL but it's not likely that this is going to make a difference. I will have to discuss this our our developers to see if they can figure our what might me causing the issue.

Posted: **Tue Oct 29, 2019 12:31 pm**

Are all of these hosts down - aa-test-point-window,---i-00178cdd511,---i-021a829b419,---i-0d9207ed315,---i-05cea42102192? They would show up in the REST API call only if they are down... If they are UP, nothing will be returned, unless you change your call to be:

Code: Select all

curl -k -XGET "https://x.x.x.x/nagiosxi/api/v1/objects/hoststatus?apikey=xxxxxxx&pretty=1&current_state=0&name=in:aa-test-point-window,---i-00178cdd511,---i-021a829b419,---i-0d9207ed315,---i-05cea42102192"

(looking for hosts that are UP)

Posted: **Tue Oct 29, 2019 2:10 pm**

Thank you lmiltchev for you support.

actually some of hosts are up and others are down. cause the purpose of the request is to isolate down hosts only.

I followed the request step by step. now it's working.

Thanks.

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