Practical Use of a NoSQL
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In the world of NoSQL, each database has its own strengths and weaknesses. Understanding which open source database is "the right tool for the job" is half the battle if you want to start building better applications quickly. IBM developer advocate Glynn Bird explores practical examples of how two popular NoSQL databases - the Cloudant JSON document store and the Redis in-memory key-value store - can be used together to create performant and scalable Web applications. It also includes real world use cases you can try today, for free, using the IBM Cloud Data Services suite of fully managed NoSQL databases-as-a-service.
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Practical Use of a NoSQL
- 1. NoSQL use-cases you can use today Practical NoSQL Glynn Bird Developer Advocate, IBM Cloud Data Services glynn.bird@uk.ibm.com @glynn_bird
- 2. Agenda • NoSQL vs. SQL • Types of NoSQL • Redis • Cloudant
- 4. RDBMS • Relational Database Management Systems • SQL language developed by IBM in the 1970s • RDBMS power lots of IT systems • Oracle, IBM DB2, MySQL, PostgreSQL, etc.
- 5. RDBMS downsides • Scalability • Availability • Price
- 6. NoSQL • NoSQL = “Not Only SQL” • Response to use-cases that an RDBMS is not a good fit • Easier to scale
- 8. Redis
- 9. Redis • Key-value store • In-memory storage • Simple data storage structures • Libraries for many programming languages • Available as-a-service through Compose.io ! Auto-failover ! Free daily backups ! Scalable ! Enterprise Edition
- 11. Demo
- 12. Simple Log Sharing Service https://logshare.mybluemix.net/ !
- 13. Redis use-cases • Cache – time-limited data • Pubsub – sharing a data stream with many clients • Queues – distributing work • Leaderboards – sorted sets • Counting – incrementing, unique users • Auto-complete – custom indexes
- 14. Cloudant
- 15. What is Apache CouchDB? • Free, open-source, NoSQL database • JSON data store • Built for the web - HTTP • RESTful API • It syncs! • http://couchdb.apache.org
- 16. Graphite & Riemann Monitoring Chef Configuration Management rsyslog Federated Logging CollectD Continuous Integration CouchDB JSON storage, API, Replication Dynamo Clustering, Scaling, Fault Tolerance Lucene Text indexing & Search Haproxy Geo-Load Balancing GeoJSON Geospatial indexing & query Jenkins Continuous Integration
- 17. Cloudant scales • Distributed database • Add nodes to scale • Fault-tolerance • RESTful API
- 18. 18! CRUD – Document Primary Index Secondary Index (view) Search Index GeoSpatial Index Cloudant Query • Direct document look up by _id! • Exists “OOTB”! • stored in a b-tree! • Primary key " doc._id! • Built using MapReduce! • stored in a b-tree! • Key " user- defined field(s)! • Built using Lucene! • FTI: Any or all fields can be indexed! • stored in R*, TPR, KD tree! • Lat/Long coorindates in GeoJSON! • “Mongo-style” querying! • Built natively in erlang! • Use when you want a single document and can find by its _id! • Use when you can find documents based on their _id! • Pull back a range of keys! • Use when you need to analyze data or get a range of keys! • Ex: count data fields, sum/ average numeric results, advanced stats, group by date, etc.! • Ad-hoc queries! • Find documents based on their contents! • Can do groups, facets, and basic geo queries (bbox & sort by distance)! • Complex geometries (polygon, circularstring, etc.) ! • Advanced relations (intersect, overlaps, etc.)! • Ad-hoc queries! • Lots of operators (>, <, IN, OR, AND, etc.)! • Intuitive for people coming from Mongo or SQL backgrounds!
- 19. Demo
- 20. Simple Search Service • Free, open-source Bluemix App – install with one click • Upload your .csv or .tsv # Imports data into cloudant # Indexes everything for search # Presents HTTP Search API • Demo! https://developer.ibm.com/clouddataservices/simple-search-service
- 21. Simple Search Service – Architecture
- 22. Simple Search Service – Production Architecture
- 24. Cloudant Use Cases • Big Data – Large Data Sets • Scalable operational data store • Search – faceted, full-text search • Geospatial – geographic, GIS systems, GeoJSON • Offline-first – replicated data to mobile devices
- 25. Developer Advocate Glynn.Bird@uk.ibm.com developer.ibm.com/ clouddataservices/ Thanks! Glynn Bird Twitter: @glynn_bird www.glynnbird.com !