Some cool features of MongoDB

Technical Evangelist, MongoDB@tgrall

Tugdual Grall

@EspritJUG

Some cool features of MongoDB

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Agenda

• Analytics

• Full Text Search

• Geospatial

Real Time Analytics

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State

• We're storing our data in MongoDB

• We need to do ad-hoc reporting, grouping, common aggregations, etc.

• What are we using for this?

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Data Warehousing

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Data Warehousing

• SQL for reporting and analytics

• Infrastructure complications

• Additional maintenance

• Data duplication

• ETL processes

• Real time?

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Aggregation Framework

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Aggregation Framework

• Declared in JSON, executes in C++

• Flexible, functional, and simple

• Operation pipeline

• Computational expressions

• Plays nice with sharding

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Pipeline

• Process a stream of documents

• Original input is a collection

• Final output is a result document

• Series of operators

• Filter or transform data

• Input/output chain

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Search…

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I want all the “tweets” about “xxx”

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MongoDB Full Text Search

• Turnkey search for apps

• Lowest cost

• Simplest ops

• Multi Language Support

GeoSpatial

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• Store Geographical Informations

• … and query them!

GeoSpatial

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How do you store information?

http://geojson.org/

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Point

{!! "loc" : !! ! {!! ! ! "type" : "Point",!! ! ! "coordinates" : [1.4528388, 43.5956005] !! ! }!}

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LineString{!! "loc" : !! ! {!! ! ! "type" : "LineString",!! ! ! "coordinates" : [ [1.4528388, 43.5956005], ! ! ! ! ! ! ! [1.3996881, 43.5976828] ] !! ! }!}

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Polygon{"loc" : !! ! { "type" : "Polygon",!! ! ! "coordinates" : [! [1.4528388, 43.5956005],!! ! ! ! ! ! ! ! [1.3996881, 43.5976828],! ! ! ! ! ! ! ! ! [1.4001065, 43.6364262],!! ! ! ! ! ! ! ! [1.4518624, 43.6324835],! ! ! ! ! ! ! ![1.4528388, 43.5956005] ] !! ! }!}

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Query the data?

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Near a pointdb.points.find(

{ "loc" :{$near : {$geometry : { type : "Point", coordinates : [1.4528388, 43.5956005] }, $maxDistance : 500

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Query : “in” the polygondb.points.find(!! { "loc" :{!!! ! ! $geoIntersects : {!! ! ! ! $geometry : !! ! ! ! {type : "Point", !! ! ! ! coordinates:[1.443934, 43.604446]}!! ! ! }!! ! }!! });

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Query : all points in a Polygondb.points.find(!{ "loc" :{ $geoWithin : !! ! {$geometry :!! ! ! { "type" : "Polygon",!! ! ! ! "coordinates" : [[!! ! ! ! [1.4528388, 43.5956005],[1.3996881, 43.5976828],!! ! ! ! [1.4001065, 43.6364262],[1.4518624, 43.6324835],!! ! ! ! [1.4528388, 43.5956005]]] !! ! ! }}}});

Questions?

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Thank You