MongoDB Launchpad 2016: What’s New in the 3.4 Server
2 likes1,062 views
Asya Kamsky, a lead product manager at MongoDB, discussed improvements, extensions, and innovations in MongoDB. These included improvements to the Wired Tiger storage engine, replica set election process, and initial sync process. MongoDB was also extended with features like document validation, partial indexes, $lookup, read-only views, and faceted search. Innovations involved improvements to the aggregation pipeline, mixed storage engine sets, zones, and BI connectors.
![#MongoDB
Extend: $lookup
}
.
.
.
,
“product_details” : [{
“_id” : 7,
“title” : “My Memoir”
}]
}
{
“_id” : 2,
“product_id” : 7
,
“product_details” : [{
“_id” : 5,
“title” : “A great book”
}]
.
.
.
{
“_id” : 1,
“product_id” : 5](https://image.slidesharecdn.com/asya-760bc15a-fc9e-40f5-bfdc-093c6387da3e-142546978-161103030002/85/MongoDB-Launchpad-2016-What-s-New-in-the-3-4-Server-7-320.jpg)
![#MongoDB
Extend: Read-Only Views
> db.rides.findOne()
{ "_id" : ObjectId("572bb8572b288919b6a47779"), "startStation" : 498,
"endStation" : 253, "bike" : 23691 }
> db.createView( "rides_safe", "rides", [{$project: {'user_ssn': 0}}] );
> db.rides_safe.findOne()
{ "_id" :ObjectId("572bb8572b288919b6a47779"), "startStation" : 498,
"endStation" : 253, "bike" : 23691, "user_ssn" : "123-45-6789" }](https://image.slidesharecdn.com/asya-760bc15a-fc9e-40f5-bfdc-093c6387da3e-142546978-161103030002/85/MongoDB-Launchpad-2016-What-s-New-in-the-3-4-Server-16-320.jpg)
MongoDB Launchpad 2016: What’s New in the 3.4 Server
- 1. A MongoDB event #MongoDB Lead Product Manager MongoDB @asya999 Asya Kamsky
- 3. #MongoDB Improve: Wired Tiger 3.0 3.2 3.4
- 4. #MongoDB Improve: Replica Set Election 1 2 3
- 7. #MongoDB Extend: $lookup } . . . , “product_details” : [{ “_id” : 7, “title” : “My Memoir” }] } { “_id” : 2, “product_id” : 7 , “product_details” : [{ “_id” : 5, “title” : “A great book” }] . . . { “_id” : 1, “product_id” : 5
- 8. #MongoDB Innovate: Aggregation Pipeline Improvements $match $sum6 6 3 3 6 4 13
- 9. #MongoDB Innovate: Mixed Storage Engine Sets
- 12. #MongoDB {0}{2}{1}{4}{2}{0}{1} {6}{2}{1}{4}{2}{0}{1} {6}{2}{1}{4}{2}{0}{1} Improve: Initial Sync
- 13. #MongoDB Improve: Initial Sync {0}{2}{1}{4}{2}{0}{1} {6}{2}{1}{4}{2}{0}{1} {6}{2}{1}{4}{2}{0}{1}
- 14. #MongoDB …… Improve: Collation Per Operation d,D c,C b,Ba,A d c b a
- 16. #MongoDB Extend: Read-Only Views > db.rides.findOne() { "_id" : ObjectId("572bb8572b288919b6a47779"), "startStation" : 498, "endStation" : 253, "bike" : 23691 } > db.createView( "rides_safe", "rides", [{$project: {'user_ssn': 0}}] ); > db.rides_safe.findOne() { "_id" :ObjectId("572bb8572b288919b6a47779"), "startStation" : 498, "endStation" : 253, "bike" : 23691, "user_ssn" : "123-45-6789" }
- 19. #MongoDB Extend: More Agg! $addFields $bucket6 1-5 5-9 9-max
- 27. Server Features Decimal Faster Balancing Configurable Consistency New Platforms Compression mongoreplay
- 29. #MongoDB Compass
- 32. #MongoDB Cloud