Splunk Search

How to display the average of the week as a straight line overlay in a timechart?

hofer
Explorer

I have a timechart with the Duration average (ca. 16ms) per second. timespan is 4s, the timechart itself is over 1 hour.

Now I'd like to have a reference value. A straight, horizontal line with the value of the average over the past week would be perfect. How can I overlay this value?

The "next level" of this would be to save that value and only re-aggregate it every day at midnight so it doesn't use too many resources and affect performance.

The search until now looks like this:

index=msh host="prod*" sourcetype=Message | timechart span=4s avg(Message_DURATION_SMSC) AS ms
1 Solution

stephanefotso
Motivator

Hi! for the command to use, i think you can use this:

index=msh host="prod*" sourcetype=Message | timechart span=4s avg(Message_DURATION_SMSC) AS ms|join [search index=msh host="prod*" sourcetype=Message | timechart span=7d avg(Message_DURATION_SMSC) AS mweek]

here is an example you can use as a template, for your chart overlay. it is using the _internal index. Just copy and test the code.

<dashboard>
  <label>Chart Overlay</label>
  <description>display the average of the week as a straight line overlay in a timechart</description>
  <row>
    <panel>
      <chart>
        <search>
          <query>index=_internal sourcetype=splunkd |timechart span=4s avg(active_hist_searches) AS AverageSearch_per_second|join [search index=_internal sourcetype=splunkd |timechart span=7d avg(active_hist_searches) AS AverageSearch_per_week]</query>
          <earliest>@d</earliest>
          <latest>now</latest>
        </search>
        <option name="charting.axisLabelsX.majorLabelStyle.overflowMode">ellipsisNone</option>
        <option name="charting.axisLabelsX.majorLabelStyle.rotation">-45</option>
        <option name="charting.axisTitleX.visibility">visible</option>
        <option name="charting.axisTitleY.visibility">visible</option>
        <option name="charting.axisTitleY2.visibility">visible</option>
        <option name="charting.axisX.scale">linear</option>
        <option name="charting.axisY.scale">linear</option>
        <option name="charting.axisY2.enabled">true</option>
        <option name="charting.axisY2.scale">inherit</option>
        <option name="charting.chart">column</option>
        <option name="charting.chart.bubbleMaximumSize">50</option>
        <option name="charting.chart.bubbleMinimumSize">10</option>
        <option name="charting.chart.bubbleSizeBy">area</option>
        <option name="charting.chart.nullValueMode">gaps</option>
        <option name="charting.chart.sliceCollapsingThreshold">0.01</option>
        <option name="charting.chart.stackMode">default</option>
        <option name="charting.chart.style">shiny</option>
        <option name="charting.drilldown">all</option>
        <option name="charting.layout.splitSeries">0</option>
        <option name="charting.legend.labelStyle.overflowMode">ellipsisMiddle</option>
        <option name="charting.legend.placement">right</option>
        <option name="charting.chart.overlayFields">AverageSearch_per_week</option>
      </chart>
    </panel>
  </row>
</dashboard>
SGF

View solution in original post

stephanefotso
Motivator

Hi! for the command to use, i think you can use this:

index=msh host="prod*" sourcetype=Message | timechart span=4s avg(Message_DURATION_SMSC) AS ms|join [search index=msh host="prod*" sourcetype=Message | timechart span=7d avg(Message_DURATION_SMSC) AS mweek]

here is an example you can use as a template, for your chart overlay. it is using the _internal index. Just copy and test the code.

<dashboard>
  <label>Chart Overlay</label>
  <description>display the average of the week as a straight line overlay in a timechart</description>
  <row>
    <panel>
      <chart>
        <search>
          <query>index=_internal sourcetype=splunkd |timechart span=4s avg(active_hist_searches) AS AverageSearch_per_second|join [search index=_internal sourcetype=splunkd |timechart span=7d avg(active_hist_searches) AS AverageSearch_per_week]</query>
          <earliest>@d</earliest>
          <latest>now</latest>
        </search>
        <option name="charting.axisLabelsX.majorLabelStyle.overflowMode">ellipsisNone</option>
        <option name="charting.axisLabelsX.majorLabelStyle.rotation">-45</option>
        <option name="charting.axisTitleX.visibility">visible</option>
        <option name="charting.axisTitleY.visibility">visible</option>
        <option name="charting.axisTitleY2.visibility">visible</option>
        <option name="charting.axisX.scale">linear</option>
        <option name="charting.axisY.scale">linear</option>
        <option name="charting.axisY2.enabled">true</option>
        <option name="charting.axisY2.scale">inherit</option>
        <option name="charting.chart">column</option>
        <option name="charting.chart.bubbleMaximumSize">50</option>
        <option name="charting.chart.bubbleMinimumSize">10</option>
        <option name="charting.chart.bubbleSizeBy">area</option>
        <option name="charting.chart.nullValueMode">gaps</option>
        <option name="charting.chart.sliceCollapsingThreshold">0.01</option>
        <option name="charting.chart.stackMode">default</option>
        <option name="charting.chart.style">shiny</option>
        <option name="charting.drilldown">all</option>
        <option name="charting.layout.splitSeries">0</option>
        <option name="charting.legend.labelStyle.overflowMode">ellipsisMiddle</option>
        <option name="charting.legend.placement">right</option>
        <option name="charting.chart.overlayFields">AverageSearch_per_week</option>
      </chart>
    </panel>
  </row>
</dashboard>
SGF

tachifelix
Path Finder

please share more information about your topic

0 Karma
Get Updates on the Splunk Community!

Index This | I am a number, but when you add ‘G’ to me, I go away. What number am I?

March 2024 Edition Hayyy Splunk Education Enthusiasts and the Eternally Curious!  We’re back with another ...

What’s New in Splunk App for PCI Compliance 5.3.1?

The Splunk App for PCI Compliance allows customers to extend the power of their existing Splunk solution with ...

Extending Observability Content to Splunk Cloud

Register to join us !   In this Extending Observability Content to Splunk Cloud Tech Talk, you'll see how to ...