mongodb - How to use pre-aggregation? -


i building stats online application. logging every hits mongodb.

like

log = {:user => 'devid',:activity=>'visited home page',:browser=>'chrome-5.3',:ip=>'10.11.35.211',:controller=>'home',:action=>'home_page',:created_at=>'2014-06-02 15:43:00'}

mongo.insert(log)

pre-aggregations controller-action combination

  1. log.daily.update({_id=>'20140602-home-home_page',:metadata=>{:controller=>'home',:action=>'home_page',date=>isodate("2014-06-02t15:34:23")}},{$inc:{daily.3=>1}},{:upsert=>true})

pre-aggregations user combination

  1. log.daily.update({_id=>'20140602-devid',:metadata=>{:user_name=>'devid',date=>isodate("2014-06-02t15:34:23")}},{$inc:{daily.3=>1}},{:upsert=>true})

similarly creating monthly , yearly aggregation. gives every hit webpage there total 7 collections need updated (1 need create + 6 need update if exist or create new collections).

my question correct approach built real time analytics ...??


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