@tsteur opened this Issue on February 20th 2012 Owner

Steps to reproduce:

Open Visitors Overview:

http://demo.piwik.org/index.php?module=CoreHome&action=index&idSite=7&period=day&date=yesterday#module=VisitsSummary&action=index&idSite=7&period=day&date=yesterday

Add metrics to plot: "Unique Visitors"
-> Everything looks fine.

Now select period = year:

http://demo.piwik.org/index.php?module=CoreHome&action=index&idSite=7&period=year&date=2012-02-19#module=VisitsSummary&action=index&idSite=7&period=year&date=2012-02-19

Add metrics to plot "Unique Visitors"
-> Displays 0 for year 2011 and 2012.

Same for project "virtual drums", "Piwik Mobile", ...

Other metrics are displaying a value for year 2011 and 2012.

Don't know whether it's a bug or whether it's just missing data in our database...

@peterbo commented on February 20th 2012 Contributor

There is a config parameter "enable_processing_unique_visitors_year_and_range = 0" which is disabled by default, because it is very performance intensive to process this metric. I could imagine, this is also disabled in the demo instance of piwik.

@mattab commented on February 20th 2012 Owner
This Issue was closed on February 20th 2012
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