Dashiki:PageviewsAnnotations

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[{

     "start": "2015-08-03",
     "end": "2015-08-03",
     "note": "We had a Kafka outage that caused traffic to look like it dropped.  This is purely a bug, no actual drop in traffic was observed.  The incident report can be found at https://wikitech.wikimedia.org/wiki/Incident_documentation/20150803-Kafka"

},{

     "start": "2015-08-10",
     "end": "2015-08-12",
     "note": "We had problems with Kafka that caused traffic to look like it dropped.  This was again a bug, no actual drop in traffic was observed.  The incident report can be found at https://wikitech.wikimedia.org/wiki/Incident_documentation/20150810-Kafka"

},{

     "start": "2015-09-15",
     "end": "2015-09-15",
     "note": "We improved web crawler detection, which resulted to a lot more pageviews being tagged as 'spider'.  This means traffic on vital-signs will appear to drop, sometimes dramatically like in the case of commons.  The actual traffic hasn't decreased, we're just categorizing it differently now."

},{

    "start": "2015-11-19",
    "end": "2015-11-19",
    "note": "We slightly improved web crawler detection, which resulted to some more pageviews being tagged as 'spider'.  This means traffic on vital-signs will appear to drop, sometimes dramatically like in the case of Wikidata.  The actual traffic hasn't decreased, we're just categorizing it differently now."

},{

    "start": "2016-04-01",
    "end": "2016-05-02",
    "note": "Artificial decrease of measured app pageviews due to an analytics bug related to the Android app's gradual switch to RESTBase (T132965)."

}, {

    "start": "2016-07-20",
    "end": "2016-08-16",
    "note": "Increase of pageviews of Main_Page due to possible bug in Chrome 41 and windows 10/7 (T141506). We send HTTP 401 since August 16th and that stopped traffic."

} ]