Splunk Search

List times inbetween events when using timechart

blhuynh
Explorer

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
...
0 Karma
1 Solution

woodcock
Esteemed Legend

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.

View solution in original post

woodcock
Esteemed Legend

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.

View solution in original post

blhuynh
Explorer

Worked for me! Thanks for elaborating more.

0 Karma

somesoni2
Revered Legend

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

blhuynh
Explorer

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

0 Karma

lguinn2
Legend

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

0 Karma
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