MongoDB World 2019: Don't Panic - The Hitchhiker's Guide to the MongoDB Galaxy
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Eric Reid's talk on MongoDB, inspired by Douglas Adams' 'The Hitchhiker's Guide to the Galaxy', aims to guide beginners through the complexities of MongoDB. He emphasizes the importance of understanding access patterns for data design and reassures attendees that starting with MongoDB can be simple and rewarding, despite its rapid evolution. The talk encourages newcomers to shed preconceptions from traditional RDBMSs and embrace MongoDB's unique paradigms.
![Making Sense Of All Things Mongo
Our Rapidly Expanding Universe
§ All since 2007-2008 (really, since c. 2013)
.
Server Enterprise Edition
MongoDB, Inc.
Support. Best Practices. DBaaS. Enterprise
functionality/features . Innovation.
Atlas MongoDB Service
BI Connector
[connect to BI Tools]](https://image.slidesharecdn.com/regentday2800amdontpanichitchhikersguidemdbw19talkv5-190701164117/85/MongoDB-World-2019-Don-t-Panic-The-Hitchhiker-s-Guide-to-the-MongoDB-Galaxy-14-320.jpg)
![Making Sense Of All Things Mongo
Our Rapidly Expanding Universe
§ All since 2007-2008 (really, since c. 2013)
.
Server Enterprise Edition
MongoDB, Inc.
Support. Best Practices. DBaaS. Enterprise
functionality/features . Innovation.
Atlas MongoDB Service
Ops Manager
[on-prem mgmt]
Cloud Manager
[hosted mgmt]
BI Connector
[connect to BI Tools]](https://image.slidesharecdn.com/regentday2800amdontpanichitchhikersguidemdbw19talkv5-190701164117/85/MongoDB-World-2019-Don-t-Panic-The-Hitchhiker-s-Guide-to-the-MongoDB-Galaxy-15-320.jpg)
![Making Sense Of All Things Mongo
Our Rapidly Expanding Universe
§ All since 2007-2008 (really, since c. 2013)
.
Server Enterprise Edition
MongoDB, Inc.
Support. Best Practices. DBaaS. Enterprise
functionality/features . Innovation.
Atlas MongoDB Service
Ops Manager
[on-prem mgmt]
Sync + Stitch
[mobile / serverless]
Cloud Manager
[hosted mgmt]
BI Connector
[connect to BI Tools]](https://image.slidesharecdn.com/regentday2800amdontpanichitchhikersguidemdbw19talkv5-190701164117/85/MongoDB-World-2019-Don-t-Panic-The-Hitchhiker-s-Guide-to-the-MongoDB-Galaxy-16-320.jpg)
![Making Sense Of All Things Mongo
Our Rapidly Expanding Universe
§ All since 2007-2008 (really, since c. 2013)
.
Server Enterprise Edition
MongoDB, Inc.
Support. Best Practices. DBaaS. Enterprise
functionality/features . Innovation.
Atlas MongoDB Service
Ops Manager
[on-prem mgmt]
Sync + Stitch
[mobile / serverless]
Cloud Manager
[hosted mgmt]
BI Connector
[connect to BI Tools]
Charts
[built-in visualization]](https://image.slidesharecdn.com/regentday2800amdontpanichitchhikersguidemdbw19talkv5-190701164117/85/MongoDB-World-2019-Don-t-Panic-The-Hitchhiker-s-Guide-to-the-MongoDB-Galaxy-17-320.jpg)
MongoDB World 2019: Don't Panic - The Hitchhiker's Guide to the MongoDB Galaxy
- 1. Eric Reid, Senior Consulting Engineer, MongoDB Don't Panic – The Hitchhiker's Guide to the MongoDB Galaxy
- 2. Volume 1 In Which We Define the Context of This Talk
- 3. The Hitchhiker’s Guide to the Galaxy Douglas Adams "The Guide is described as resembling 'a small, thin, flexible lap computer’ encased in a 'sturdy plastic cover' with the words 'Don't Panic' inscribed on it 'in large, friendly letters'. It is presumably of robust construction, making it able to withstand falling through time/space wormholes and being thrown into swamps, being rescued, and still operating.”
- 4. A Slightly More Optimistic Message… YOU GOT THIS!
- 5. % whoami Gorilla gorilla (lowland) Gorilla beringei (mountain) Great Ape Conservation Fund Part Silverback…
- 6. % whoami 42Gorilla gorilla (lowland) Gorilla beringei (mountain) Great Ape Conservation Fund Part Silverback… Part Hitchhiker
- 7. Welcome, Fellow Hitchhiker Is this you? § “I’ve been told I need to learn this MongoDB thing…” § “I want to learn MongoDB, but I don’t know where to start…” § “MongoDB seems to be expanding too fast to keep up with…” § “When I ask how to join tables in MongoDB, people snort…” § ”But, but, I’ve been using RDBMSs, like, forever !!!”
- 8. Welcome, Fellow Hitchhiker Is this you? § “I’ve been told I need to learn this MongoDB thing…” § “I want to learn MongoDB, but I don’t know where to start…” § “MongoDB seems to be expanding too fast to keep up with…” § “When I ask how to join tables in MongoDB, people snort…” § ”But, but, I’ve been using RDBMSs forever !!!” YOU GOT THIS!
- 9. Volume 2 In Which We Attempt to Assure You It’ll Be OK
- 10. Making Sense Of All Things Mongo Our Rapidly Expanding Universe § All since 2007-2008 (really, since c. 2013)
- 11. Making Sense Of All Things Mongo Comparison: A Certain Red-ish, 40-year-old RDBMS § All since 1977
- 12. Making Sense Of All Things Mongo Our Rapidly Expanding Universe § All since 2007-2008 (really, since c. 2013) The MongoDB Community Open Source. Freely available for use. Thousands of users, millions of deployments. Server Community Edition
- 13. Making Sense Of All Things Mongo Our Rapidly Expanding Universe § All since 2007-2008 (really, since c. 2013) . Server Enterprise Edition MongoDB, Inc. Support. Best Practices. DBaaS. Enterprise functionality/features . Innovation. Atlas MongoDB Service
- 14. Making Sense Of All Things Mongo Our Rapidly Expanding Universe § All since 2007-2008 (really, since c. 2013) . Server Enterprise Edition MongoDB, Inc. Support. Best Practices. DBaaS. Enterprise functionality/features . Innovation. Atlas MongoDB Service BI Connector [connect to BI Tools]
- 15. Making Sense Of All Things Mongo Our Rapidly Expanding Universe § All since 2007-2008 (really, since c. 2013) . Server Enterprise Edition MongoDB, Inc. Support. Best Practices. DBaaS. Enterprise functionality/features . Innovation. Atlas MongoDB Service Ops Manager [on-prem mgmt] Cloud Manager [hosted mgmt] BI Connector [connect to BI Tools]
- 16. Making Sense Of All Things Mongo Our Rapidly Expanding Universe § All since 2007-2008 (really, since c. 2013) . Server Enterprise Edition MongoDB, Inc. Support. Best Practices. DBaaS. Enterprise functionality/features . Innovation. Atlas MongoDB Service Ops Manager [on-prem mgmt] Sync + Stitch [mobile / serverless] Cloud Manager [hosted mgmt] BI Connector [connect to BI Tools]
- 17. Making Sense Of All Things Mongo Our Rapidly Expanding Universe § All since 2007-2008 (really, since c. 2013) . Server Enterprise Edition MongoDB, Inc. Support. Best Practices. DBaaS. Enterprise functionality/features . Innovation. Atlas MongoDB Service Ops Manager [on-prem mgmt] Sync + Stitch [mobile / serverless] Cloud Manager [hosted mgmt] BI Connector [connect to BI Tools] Charts [built-in visualization]
- 18. Making Sense Of All Things Mongo Our Rapidly Expanding Universe § Too much stuff… panic… rising… = ?
- 19. Making Sense Of All Things Mongo Our Rapidly Expanding Universe § Too much stuff… panic… rising… = ? YOU GOT THIS!
- 20. Making Sense Of All Things Mongo Our Rapidly Expanding Universe Big MongoDB Rule: It’s OK (and often desirable) to Start Simply
- 21. Volume 3 In Which We Enlighten Fellow Hitchhikers
- 22. In Search of the ‘Aha!’ Moments The Story of the Data Designer who had to have a schema…
- 23. In Search of the ‘Aha!’ Moments
- 24. Top 5 Takeaways for new MongoDB Hitchhikers
- 25. Top 5 Takeaways for new MongoDB Hitchhikers 1) MongoDB is proven for uses Big and Small
- 26. Top 5 Takeaways for new MongoDB Hitchhikers 1) MongoDB is proven for uses Big and Small 2) One needn’t use (or even fully understand) the more complex pieces of MongoDB to use it well
- 27. Top 5 Takeaways for new MongoDB Hitchhikers 1) MongoDB is proven for uses Big and Small 2) One needn’t use (or even fully understand) the more complex pieces of MongoDB to use it well 3) “Schemaless” is both a misnomer and an opportunity
- 28. Top 5 Takeaways for new MongoDB Hitchhikers 1) MongoDB is proven for uses Big and Small 2) One needn’t use (or even fully understand) the more complex pieces of MongoDB to use it well 3) “Schemaless” is both a misnomer and an opportunity 4) New Hitchhikers need to check their preconceptions at the door
- 29. Top 5 Takeaways for new MongoDB Hitchhikers 1) MongoDB is proven for uses Big and Small 2) One needn’t use (or even fully understand) the more complex pieces of MongoDB to use it well 3) “Schemaless” is both a misnomer and an opportunity 4) New Hitchhikers need to check their preconceptions at the door 5) Let your access patterns determine your data structure
- 30. Making Sense Of All Things Mongo Start Simply and Locally • MongoDB Server on your {laptop,desktop}, plus Compass or MongoDB Shell • Be Careful: mongos is not the MongoDB Shell! • Be aware of MongoDB Shell database ‘context’ % mongo localhost:27017 > use myDatabase switched to db myDatabase > db.myCollection.insert({field:"this is in myDatabase.myCollection"}) WriteResult({ "nInserted" : 1 }) > use admin switched to db admin > db.myCollection.find() >
- 31. Making Sense Of All Things Mongo Start Simply and Locally
- 32. Making Sense Of All Things Mongo Start Simply and Locally • MongoDB Server on your {laptop,desktop}, plus Compass or MongoDB Shell
- 33. Making Sense Of All Things Mongo Start Simply and Locally • MongoDB Server on your {laptop,desktop}, plus Compass or MongoDB Shell • Be Careful: mongos is not the MongoDB Shell
- 34. Making Sense Of All Things Mongo Start Simply and Locally • MongoDB Server on your {laptop,desktop}, plus Compass or MongoDB Shell • Be Careful: mongos is not the MongoDB Shell! • Be aware of MongoDB Shell database ‘context’ % mongo localhost:27017 > use myDatabase switched to db myDatabase > db.myCollection.insert({field:"this is in myDatabase.myCollection"}) WriteResult({ "nInserted" : 1 }) > use admin switched to db admin > db.myCollection.find() >
- 35. Making Sense Of All Things Mongo Coming From RDBMS-land?
- 36. Making Sense Of All Things Mongo Coming From RDBMS-land?
- 38. Jumping In Data Design § Access patterns drive MongoDB data design
- 39. Jumping In Data Design § Access patterns drive MongoDB data design § Collection definition cannot be done in a vacuum § First: “What are the main types of things in your database?” § Then: “What are your apps’ most important queries?” § Then: “What are your apps’ most important writes?”
- 40. Jumping In Data Design § Access patterns drive MongoDB data design § Collection definition cannot be done in a vacuum § First: “What are the main types of things in your database?” § Then: “What are your apps’ most important queries?” § Then: “What are your apps’ most important writes?” § Never, never, never, never, never expect to port an app from an RDBMS with a 1:1 mapping from tables to collections
- 41. Jumping In Data Design § Access patterns drive MongoDB data design § Collection definition cannot be done in a vacuum § First: “What are the main types of things in your database?” § Then: “What are your apps’ most important queries?” § Then: “What are your apps’ most important writes?” § Never, never, never, never, never expect to port an app from an RDBMS with a 1:1 mapping from tables to collections § Know thy working set
- 42. “If I’d Only Known…” Tales from the Road Warrior
- 43. “If I’d Only Known…” Tales from the Road Warrior § MongoDB Shell is a JavaScript interpreter! > for (i=1; i<=20; i++) { db.testcol.insertOne( { _id : i, a : i } ) } { "acknowledged" : true, "insertedId" : 20 }
- 44. “If I’d Only Known…” Tales from the Road Warrior § MongoDB Shell is a JavaScript interpreter! § MongoDB Shell has shortcuts > for (i=1; i<=20; i++) { db.testcol.insertOne( { _id : i, a : i } ) } { "acknowledged" : true, "insertedId" : 20 }
- 45. “If I’d Only Known…” Tales from the Road Warrior § MongoDB Shell is a JavaScript interpreter! § MongoDB Shell has shortcuts § Don’t try to be overly clever with Boolean values § {$ne: true} is not the same as {$eq: false} > for (i=1; i<=20; i++) { db.testcol.insertOne( { _id : i, a : i } ) } { "acknowledged" : true, "insertedId" : 20 }
- 46. “If I’d Only Known…” Tales from the Road Warrior § MongoDB Shell is a JavaScript interpreter! § MongoDB Shell has shortcuts § Don’t try to be overly clever with Boolean values § {$ne: true} is not the same as {$eq: false} § Copy-and-Paste can introduce “smart quotes”; MongoDB Shell doesn’t like “smart quotes” > for (i=1; i<=20; i++) { db.testcol.insertOne( { _id : i, a : i } ) } { "acknowledged" : true, "insertedId" : 20 }
- 47. And now, Eric’s ‘Aha!’ Moment… The story of bindIp
- 48. And now, Eric’s ‘Aha!’ Moment… The story of bindIp net: port: 27017 bindIp: 127.0.0.1, 192.168.0.101 mongod.conf
- 49. Tools for Your MongoDB Life
- 50. Tools for Your MongoDB Life m § https://github.com/aheckmann/m § Manage multiple versions of MongoDB, quickly switch between them § Used for: local sandboxes $ m 4.0.5-ent ο 4.0.8 4.0.9 $ m 4.0.9 Activating 4.0.9 $ mongod --version db version v4.0.9
- 51. Tools for Your MongoDB Life mtools § https://github.com/rueckstiess/mto ols § a) Log analysis and visualization of any mongod logfile § b) mlaunch quick spin-up script; Stand up local test Standalone, Replica Set, or Sharded Cluster in seconds $ mlaunch init --replicaset -- sharded 3 launching: "mongod" on port 27018 launching: "mongod" on port 27019 : :
- 52. Tools for Your MongoDB Life mgeneratejs § https://github.com/rueckstiess/mgeneratejs § Generate semi-structured JSON for import w/mongoimport § Used for: any instance $ mgeneratejs '{"name": "$name", "age": "$age", "emails": {"$array": {"of": "$email", "number": 3}}}' -n 1000000 > collectionData.json $ mongoimport –d test –c myCollection collectionData.json 2019-04-18T17:31:26.922-0400 connected to: localhost 2019-04-18T17:32:57.893-0400 imported 1000000 documents
- 53. O, Where to Turn? Community Resources for MongoDB Novitiate
- 54. O, Where to Turn? Community Resources for MongoDB Novitiate § The MongoDB Slack Community is the place to meet other users, learn, and get answers to questions.
- 55. O, Where to Turn? Community Resources for MongoDB Novitiate § The MongoDB Slack Community is the place to meet other users, learn, and get answers to questions. § MongoDB-User Community Support Forum: A community forum best suited for open-ended, opinion-based, or general questions about MongoDB. You can post and view the forum via the Google Groups web interface or subscribe to updates via email.
- 56. O, Where to Turn? Community Resources for MongoDB Novitiate § The MongoDB Slack Community is the place to meet other users, learn, and get answers to questions. § MongoDB-User Community Support Forum: A community forum best suited for open-ended, opinion-based, or general questions about MongoDB. You can post and view the forum via the Google Groups web interface or subscribe to updates via email. § Stack Overflow: A community Q&A site for specific programming questions with factual, rather than subjective, answers
- 57. O, Where to Turn? Community Resources for MongoDB Novitiate § The MongoDB Slack Community is the place to meet other users, learn, and get answers to questions. § MongoDB-User Community Support Forum: A community forum best suited for open-ended, opinion-based, or general questions about MongoDB. You can post and view the forum via the Google Groups web interface or subscribe to updates via email. § Stack Overflow: A community Q&A site for specific programming questions with factual, rather than subjective, answers § DBA Stack Exchange: A community Q&A site for database administrators and other database professionals.
- 58. O, Where to Turn? Enterprise Resources for MongoDB Novitiate
- 59. O, Where to Turn? Enterprise Resources for MongoDB Novitiate § MongoDB Technical Support provides Enterprise Customers with timely technical support for MongoDB products
- 60. O, Where to Turn? Enterprise Resources for MongoDB Novitiate § MongoDB Technical Support provides Enterprise Customers with timely technical support for MongoDB products § MongoDB Professional Services gives Customers access to world class MongoDB Best Practices and expertise on-site
- 61. O, Where to Turn? Enterprise Resources for MongoDB Novitiate § MongoDB Technical Support provides Enterprise Customers with timely technical support for MongoDB products § MongoDB Professional Services gives Customers access to world class MongoDB Best Practices and expertise on-site § MongoDB University serves up free self-paced or instructor-paced virtual courses, and offers MongoDB Admin and Developer Certifications
- 62. Summing Up
- 63. Summing Up § It’s OK to start simply with MongoDB
- 64. Summing Up § It’s OK to start simply with MongoDB § Be open to the new concepts and paradigms offered by MongoDB
- 65. Summing Up § It’s OK to start simply with MongoDB § Be open to the new concepts and paradigms offered by MongoDB § The ‘Aha!’ moments will come in time – look for them!
- 66. Summing Up § It’s OK to start simply with MongoDB § Be open to the new concepts and paradigms offered by MongoDB § The ‘Aha!’ moments will come in time – look for them! § Don’t be afraid to ask
- 67. Summing Up § It’s OK to start simply with MongoDB § Be open to the new concepts and paradigms offered by MongoDB § The ‘Aha!’ moments will come in time – look for them! § Don’t be afraid to ask § Don’t Panic You Got This! YOU GOT THIS!
- 68. Volume 4 In Which We Entertain Your Queries Questions
- 70. Attribution § Hitchhikers Guide to the Galaxy Characters © Douglas Adams § Hitchhiker’s Guide to the Galaxy Icons by Iconshock § Silverback Photo © Kathmandutraveler - Dreamstime.com