NTPQ

Overview

This integration collects standard query metrics from NTPQ.

Setup

The ntpq monitoring is accomplished by bridge plugin which is included with the SolarWinds Snap Agent by default. Follow the directions below to enable it for an agent instance. The bridge plugin utilize Telegraf NTPQ plugin.

Prerequisites

This plugin requires that the ntp daemon is installed and running. Verify you have the package installed, and that the service is queryable.

sudo apt-get install ntp

 

sudo ntpq -p

Configuration

The agent provides an example task file to help you get started quickly, but requires you to provide the correct settings for your NTPQ installation. To enable the task:

1. Make a copy of the ntpq example task file /opt/SolarWinds/Snap/etc/tasks-autoload.d/task-bridge-ntpq.yaml.example, renaming it to /opt/SolarWinds/Snap/etc/tasks-autoload.d/task-bridge-ntpq.yaml:

   sudo cp -p /opt/SolarWinds/Snap/etc/tasks-autoload.d/task-bridge-ntpq.yaml.example /opt/SolarWinds/Snap/etc/tasks-autoload.d/task-bridge-ntpq.yaml

2. Edit the task file with settings specific to your NTPQ install:

   ---
   version: 2
   
   schedule:
     type: cron
     interval: "0 * * * * *"
     
   plugins:
     - plugin_name: bridge
     
       config:
         ntpq:
           ## If false, set the -n ntpq flag. Can reduce metric gather time. (default=false)
           # dns_lookup: true
           
       publish:
         - plugin_name: publisher-appoptics

3. Restart the agent:

   sudo service swisnapd restart

4. Enable the NTPQ integration in AppOptics

On the Integrations Page you will see NTPQ integration available if the previous steps were successful. It may take a couple minutes before the NTPQ integration is identified. Select the NTPQ integration to open the configuration menu in the UI, and enable it. If you do not see it, see Troubleshooting Linux..

Testing Integration

To check if and what metrics can be collected with given configuration, run bridge plugin in debug mode:

/opt/SolarWinds/Snap/bin/snap-plugin-collector-bridge --debug-mode --plugin-config "{\"ntpq\": {}}"

Metrics and Tags

The table below lists each of the metrics gathered from the status endpoint.

Metrics

Name	Description
ntpq.delay	Round trip communication delay to the remote peer or server (milliseconds)
ntpq.jitter	Mean deviation (jitter) in the time reported for that remote peer or server (milliseconds);
ntpq.offset	Mean offset (phase) in the times reported between this local host and the remote peer or server (milliseconds)
ntpq.poll	Polling frequency (seconds)
ntpq.reach	An 8-bit left-shift shift register value recording polls (bit set = successful, bit reset = fail)
ntpq.when	When last polled (seconds)

Tags

Name	Description
remote	The remote peer or server being synced to. LOCAL is this local host (included in case there are no remote peers or servers available)
refid	Where or what the remote peer or server is itself synchronised to
stratum	The remote peer or server Stratum
type	Type (u: unicast or manycast client, b: broadcast or multicast client, l: local reference clock, s: symmetric peer, A: manycast server, B: broadcast server, M: multicast server)

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