topic Re: List times inbetween events when using timechart in Splunk Search

List times inbetween events when using timechart

blhuynh — Fri, 18 Mar 2016 21:40:43 GMT

Using timechart, I have a a table with a list of dates and a value. However, the dates are non-consecutive (although ordered). I want to add in the missing dates inbetween the current values and backfill the values for the extra dates.

For example, my data looks like this currently:

_time   values(A)
2014-05-04  73
2014-05-18  74
2014-06-01  75
2014-06-15  76

I would like for this to be transformed into the following:

_time   values(A)
2014-05-04  73
2014-05-05  73
2014-05-06  73
....
2014-05-18  74
2014-05-19  74
2014-05-20  74
...

Re: List times inbetween events when using timechart

lguinn2 — Fri, 18 Mar 2016 22:34:44 GMT

Usually, timechart will produce all the intervening dates with empty values. Can you show the exact commands that you used?

Re: List times inbetween events when using timechart

somesoni2 — Sat, 19 Mar 2016 18:09:51 GMT

Try something like thsi

your current search with timechart | makecontinuous

More information on makecontinous command http://docs.splunk.com/Documentation/Splunk/6.2.1/SearchReference/Makecontinuous

Re: List times inbetween events when using timechart

woodcock — Mon, 21 Mar 2016 02:35:11 GMT

You need to do a couple of things. As @somesoni2 pointed out, you need to create the missing events, but then you also need to fill in the values for those events because the fields will not exist if you do not. Try this:

 your current search with timechart | makecontinuous _time span=1d | eval VA="values(A)" | streamstats current=t max(VA) AS "values(A)" | fields - VA

You may need to adjust slightly depending on how your events are actually aligned but the core is correct.

Re: List times inbetween events when using timechart

blhuynh — Mon, 21 Mar 2016 14:03:33 GMT

Worked for me! Thanks for elaborating more.

Re: List times inbetween events when using timechart

blhuynh — Mon, 21 Mar 2016 14:03:53 GMT

Thanks for the help! Worked along with the streamstats suggestion below.