title: Monitoring the collectd instance availability in kibana
body: <p>I am using kibana to monitor application logs and various system metric.</p>
  
  <pre><code>  Application logs --&gt; filebeats
  
                              \
                               \
                                Logstash -&gt; elasticsearch -&gt; kibana 
                               /
                              /
  
  **System metrics   --&gt; collectd**
  </code></pre>
  
  <p><strong>Collectd</strong> collects metrics from 5 different machines and feeds to logstash. It is difficult to understand from the dashboard if one of the machines is down, unless we explicity search for the entries from that machine.
  Hence we need some way to show the user that the instance is down where the collectd is installed  (basically to tell if the machine is up or not)</p>
  
  <p>Can anyone please suggest how I  can <strong>notify in kibana that one of the collectd instances is down</strong>?</p>