Deployment Architecture
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Check Deployer and search head status in internal logs

Communicator

I am trying to monitor deployer and search head service status using _internal logs.
Which fields should I consider to monitor whether Splunk service on deployer and SH are up and running?

Note: I am building a dashboard to monitor splunk service status

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Re: Check Deployer and search head status in internal logs

Legend

Hi @snigdhasaxena,
the main and easiest check that you can run is that the monitored hosts are sending internal logs, something like this:
create a lookup with all the hosts to monitor (called e.g. perimeter.csv and containing at least one field: host)
run a search like this:

| metasearch index=_internal [ | inputlookup perimeter.csv | fields host ]
| eval host=lower(host)
| stats count BY host
| append [ | inputlookup perimeter.csv | eval host=lower(host), count=0 | fields host count ]
| stats sum(count) AS total BY host
| where total=0

If you like you can use this search (without the last row) to display in a table an health status of your Splunk infrastructure, also in graphic mode.
this is an example of this dashboard with more informations in perimeter.csv:

<form stylesheet="table_decorations.css" script="table_icons_rangemap.js" hideFilters="true">
  <label>Home Page</label>
  <fieldset submitButton="false">
    <input type="time" token="Time">
      <label>periodo</label>
      <default>
        <earliest>-24h@h</earliest>
        <latest>now</latest>
      </default>
    </input>
  </fieldset>
  <row>
    <panel>
      <title>Infrastructure</title>
      <table id="table1">
        <title>Total = $server_count$</title>
        <search>
          <progress>
            <set token="server_count">$job.resultCount$</set>
          </progress>
          <cancelled>
            <unset token="server_count"></unset>
          </cancelled>
          <query>| metasearch index=_internal [ | inputlookup perimeter.csv | fields host ]
            | eval host=lower(host)
            | stats count BY host
            | append [ | inputlookup perimeter.csv | eval host=lower(host), count=0 | fields host count site ip role]
            | stats values(site) AS Site values(ip) AS IP values(role) AS Role sum(count) AS total BY host
            | rangemap field=total severe=0-0 low=1-1000000000 default=severe
            | eval range=if(check="no","elevated",range)
            | rename host AS HostName
            | table Role Site range
            | sort Role</query>
          <earliest>$Time.earliest$</earliest>
          <latest>$Time.latest$</latest>
        </search>
        <option name="count">100</option>
        <option name="dataOverlayMode">none</option>
        <option name="drilldown">none</option>
        <option name="percentagesRow">false</option>
        <option name="refresh.display">progressbar</option>
        <option name="rowNumbers">false</option>
        <option name="totalsRow">false</option>
        <option name="wrap">true</option>
      </table>
    </panel>
  </row>
</form>

You can find informations about "tabledecorations.css" and "tableicons_rangemap.js" in Splunk dashboard Examples App ( https://splunkbase.splunk.com/app/1603/ ).

Ciao.
Giuseppe

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Re: Check Deployer and search head status in internal logs

Communicator

@gcusello Thanks for responding. The query that I have built is generating status report for all other Splunk components (indexer, search heads, deployment server) but is not fetching events for Cluster master and deployer.
I am looking for a field value parameter in internal logs that could help me determine the status of CM and deployer.

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Re: Check Deployer and search head status in internal logs

Legend

Hi @snigdhasaxena,
Check if you configured Cluster Master and Deployer to send logs to Indexers (it's a best practice that all the Splunk servers send their logs to Indexers!), if not, configure them to forward their logs.

Ciao.
Giuseppe

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