Introduction to mongo db

Introduction to MongoDB A No-SQL Persistence Alternative A U S T I N - . N E T - U S E R - G R O U P Chris Edwards h t t p : / / c h r i s e d wa r d s . d r e a m h o s t e r s . c o m

About Me Chris Edwards Senior Developer at BancVue Ltd. Email: ChrisEdwards357@gmail.com Blog: http://chrisedwards.dreamhosters.com Twitter: @cedwards Github: http://github.com/chrisedwards (Sample code for this talk is posted) h t t p : / / c h r i s e d wa r d s . d r e a m h o s t e r s . c o m Introduction to MongoDB A No-SQL Persistence Alternative A U S T I N - . N E T - U S E R - G R O U P

MongoDB Session Roadmap • What is the NoSQL Movement? • What is MongoDB? • Installing • Using the Mongo Shell • Accessing MongoDB via C# - Basic Driver (mongodb-csharp driver) - Using Linq - Using NoRM for strong typing • Accessing MongoDB via REST • Replication • Sharding h t t p : / / c h r i s e d wa r d s . d r e a m h o s t e r s . c o m Introduction to MongoDB A No-SQL Persistence Alternative A U S T I N - . N E T - U S E R - G R O U P

What is No-SQL? h t t p : / / c h r i s e d wa r d s . d r e a m h o s t e r s . c o m Introduction to MongoDB A No-SQL Persistence Alternative A U S T I N - . N E T - U S E R - G R O U P

What is No-SQL? “Next Generation Databases mostly addressing some of the points: being non-relational, distributed, open-source and horizontal scalable. ... schema-free, easy replication support, simple API, eventually consistent ...” - nosql-database.org h t t p : / / c h r i s e d wa r d s . d r e a m h o s t e r s . c o m Introduction to MongoDB A No-SQL Persistence Alternative A U S T I N - . N E T - U S E R - G R O U P

What is No-SQL? “Next Generation Databases mostly addressing some of the points: being non-relational, distributed, open-source and horizontal scalable. ... schema-free, easy replication support, simple API, eventually consistent ...” - nosql-database.org • Non-Relational • Schema-Free • Distributed • Replication Support • Open-Source • Simple API • Horizontally Scalable • Eventually Consistent h t t p : / / c h r i s e d wa r d s . d r e a m h o s t e r s . c o m Introduction to MongoDB A No-SQL Persistence Alternative A U S T I N - . N E T - U S E R - G R O U P

What is No-SQL? It’s about using the right tool for the job. • Not all systems have the same data needs. • Sql is not the only option, nor is it always the best one. • Consider all options carefully and choose wisely. h t t p : / / c h r i s e d wa r d s . d r e a m h o s t e r s . c o m Introduction to MongoDB A No-SQL Persistence Alternative A U S T I N - . N E T - U S E R - G R O U P

What is No-SQL? It’s about using the right tool for the job. • Not all systems have the same data needs. • Sql is not the only option, nor is it always the best one. • Consider all options carefully and choose wisely. Not Only SQL h t t p : / / c h r i s e d wa r d s . d r e a m h o s t e r s . c o m Introduction to MongoDB A No-SQL Persistence Alternative A U S T I N - . N E T - U S E R - G R O U P

What is No-SQL? It’s about using the right tool for the job. • Not all systems have the same data needs. • Sql is not the only option, nor is it always the best one. • Consider all options carefully and choose wisely. Not Only SQL It’s not about flaming SQL. h t t p : / / c h r i s e d wa r d s . d r e a m h o s t e r s . c o m Introduction to MongoDB A No-SQL Persistence Alternative A U S T I N - . N E T - U S E R - G R O U P

What is No-SQL? It’s about using the right tool for the job. • Not all systems have the same data needs. • Sql is not the only option, nor is it always the best one. • Consider all options carefully and choose wisely. Not Only SQL It’s not about flaming SQL. Its about opening our minds to new technologies. h t t p : / / c h r i s e d wa r d s . d r e a m h o s t e r s . c o m Introduction to MongoDB A No-SQL Persistence Alternative A U S T I N - . N E T - U S E R - G R O U P

What is MongoDB? • Document-oriented database - Uses JSON (BSON actually) • Schema-free • Performant - Written in C++ - Full index support - No transactions (has atomic operations) “Mongo only pawn in game of life” - Memory-mapped files (delayed writes) • Scalable - Replication - Auto-Sharding • Commercially supported (10gen) - Lots of documentation h t t p : / / c h r i s e d wa r d s . d r e a m h o s t e r s . c o m Introduction to MongoDB A No-SQL Persistence Alternative A U S T I N - . N E T - U S E R - G R O U P

Other Features of MongoDB • Document-based queries - Flexible document queries expressed in JSON/Javascript. • Map Reduce - Flexible aggregation and data processing. - Queries run in parallel on all shards. • GridFS - Store files of any size easily. • Geospatial Indexing - Find object based on location. (i.e. find closest n items to x) • Many Production Deployments h t t p : / / c h r i s e d wa r d s . d r e a m h o s t e r s . c o m Introduction to MongoDB A No-SQL Persistence Alternative A U S T I N - . N E T - U S E R - G R O U P

Other Features of MongoDB • Supported Platforms - OSX - Linux - Solaris - Windows - FreeBSD h t t p : / / c h r i s e d wa r d s . d r e a m h o s t e r s . c o m Introduction to MongoDB A No-SQL Persistence Alternative A U S T I N - . N E T - U S E R - G R O U P

MongoDB Basic Concepts Document - Analogous to a row in RDBMS - Represented as JSON (BSON) - Hierarchical - Can reference other documents h t t p : / / c h r i s e d wa r d s . d r e a m h o s t e r s . c o m Introduction to MongoDB A No-SQL Persistence Alternative A U S T I N - . N E T - U S E R - G R O U P

MongoDB Basic Concepts Document Collection - Analogous to a row in RDBMS - Analogous to a table in RDBMS - Represented as JSON (BSON) - Collection of documents - Hierarchical - Documents can by anything - Can reference other documents - Advantageous if they are similar h t t p : / / c h r i s e d wa r d s . d r e a m h o s t e r s . c o m Introduction to MongoDB A No-SQL Persistence Alternative A U S T I N - . N E T - U S E R - G R O U P

MongoDB Basic Concepts Embedding - Analogous to a foreign key - Think “pre-joined relationship”. - Clearer conceptual model. - DDD Aggregate Root - Can be - Sub Objects - Collections h t t p : / / c h r i s e d wa r d s . d r e a m h o s t e r s . c o m Introduction to MongoDB A No-SQL Persistence Alternative A U S T I N - . N E T - U S E R - G R O U P

MongoDB Basic Concepts Embedding - Analogous to a foreign key - Think “pre-joined relationship” - Clearer conceptual model. - DDD Aggregate Root - Can be - Sub Objects - Collections References - Analogous to a foreign key - Think “relationship” h t t p : / / c h r i s e d wa r d s . d r e a m h o s t e r s . c o m Introduction to MongoDB A No-SQL Persistence Alternative A U S T I N - . N E T - U S E R - G R O U P

MongoDB Basic Operations Querying All the following queries will find the document. h t t p : / / c h r i s e d wa r d s . d r e a m h o s t e r s . c o m Introduction to MongoDB A No-SQL Persistence Alternative A U S T I N - . N E T - U S E R - G R O U P

MongoDB Basic Operations Querying All the following queries will find the document. By property value h t t p : / / c h r i s e d wa r d s . d r e a m h o s t e r s . c o m Introduction to MongoDB A No-SQL Persistence Alternative A U S T I N - . N E T - U S E R - G R O U P

MongoDB Basic Operations Querying All the following queries will find the document. By property value By embedded object property value h t t p : / / c h r i s e d wa r d s . d r e a m h o s t e r s . c o m Introduction to MongoDB A No-SQL Persistence Alternative A U S T I N - . N E T - U S E R - G R O U P

MongoDB Basic Operations Querying All the following queries will find the document. By property value By embedded object property value With comparison operators h t t p : / / c h r i s e d wa r d s . d r e a m h o s t e r s . c o m Introduction to MongoDB A No-SQL Persistence Alternative A U S T I N - . N E T - U S E R - G R O U P

MongoDB Basic Operations Querying All the following queries will find the document. By property value By embedded object property value With comparison operators Values in collections (implicit “in”) h t t p : / / c h r i s e d wa r d s . d r e a m h o s t e r s . c o m Introduction to MongoDB A No-SQL Persistence Alternative A U S T I N - . N E T - U S E R - G R O U P

MongoDB Basic Operations Indexing h t t p : / / c h r i s e d wa r d s . d r e a m h o s t e r s . c o m Introduction to MongoDB A No-SQL Persistence Alternative A U S T I N - . N E T - U S E R - G R O U P

MongoDB Basic Operations Indexing On property value h t t p : / / c h r i s e d wa r d s . d r e a m h o s t e r s . c o m Introduction to MongoDB A No-SQL Persistence Alternative A U S T I N - . N E T - U S E R - G R O U P

MongoDB Basic Operations Indexing On property value On embedded object property h t t p : / / c h r i s e d wa r d s . d r e a m h o s t e r s . c o m Introduction to MongoDB A No-SQL Persistence Alternative A U S T I N - . N E T - U S E R - G R O U P

MongoDB Basic Operations Indexing On property value On embedded object property On embedded collections h t t p : / / c h r i s e d wa r d s . d r e a m h o s t e r s . c o m Introduction to MongoDB A No-SQL Persistence Alternative A U S T I N - . N E T - U S E R - G R O U P

MongoDB Basic Operations Indexing On property value On embedded object property On embedded collections On multiple keys h t t p : / / c h r i s e d wa r d s . d r e a m h o s t e r s . c o m Introduction to MongoDB A No-SQL Persistence Alternative A U S T I N - . N E T - U S E R - G R O U P

MongoDB Basic Operations Inserting h t t p : / / c h r i s e d wa r d s . d r e a m h o s t e r s . c o m Introduction to MongoDB A No-SQL Persistence Alternative A U S T I N - . N E T - U S E R - G R O U P

MongoDB Basic Operations Updating Using Query/Modify/Save h t t p : / / c h r i s e d wa r d s . d r e a m h o s t e r s . c o m Introduction to MongoDB A No-SQL Persistence Alternative A U S T I N - . N E T - U S E R - G R O U P

MongoDB Basic Operations Updating Using Query/Modify/Save • Requires each object to be loaded in memory. • Requires multiple hits to the database. • Very inefficient. h t t p : / / c h r i s e d wa r d s . d r e a m h o s t e r s . c o m Introduction to MongoDB A No-SQL Persistence Alternative A U S T I N - . N E T - U S E R - G R O U P

MongoDB Basic Operations Updating Using Atomic Updates h t t p : / / c h r i s e d wa r d s . d r e a m h o s t e r s . c o m Introduction to MongoDB A No-SQL Persistence Alternative A U S T I N - . N E T - U S E R - G R O U P

MongoDB Basic Operations Updating Using Atomic Updates • Analogous to transactions. • Requires only one trip to the database. • Operations are atomic. • Can perform multiple operations at once. h t t p : / / c h r i s e d wa r d s . d r e a m h o s t e r s . c o m Introduction to MongoDB A No-SQL Persistence Alternative A U S T I N - . N E T - U S E R - G R O U P

MongoDB System Components h t t p : / / c h r i s e d wa r d s . d r e a m h o s t e r s . c o m Introduction to MongoDB A No-SQL Persistence Alternative A U S T I N - . N E T - U S E R - G R O U P

MongoDB System Components mongod.exe The database server h t t p : / / c h r i s e d wa r d s . d r e a m h o s t e r s . c o m Introduction to MongoDB A No-SQL Persistence Alternative A U S T I N - . N E T - U S E R - G R O U P

MongoDB System Components mongod.exe mongo.exe The database server The interactive shell h t t p : / / c h r i s e d wa r d s . d r e a m h o s t e r s . c o m Introduction to MongoDB A No-SQL Persistence Alternative A U S T I N - . N E T - U S E R - G R O U P

MongoDB System Components mongod.exe mongo.exe The database server The interactive shell mongos.exe The sharding router h t t p : / / c h r i s e d wa r d s . d r e a m h o s t e r s . c o m Introduction to MongoDB A No-SQL Persistence Alternative A U S T I N - . N E T - U S E R - G R O U P

Installing MongoDB 1. Download MongoDB. www.mongodb.com/downloads 2. Extract it. 3. Create the data folder. usually /data/db -or- C:datadb 4. Run mongod.exe h t t p : / / c h r i s e d wa r d s . d r e a m h o s t e r s . c o m Introduction to MongoDB A No-SQL Persistence Alternative A U S T I N - . N E T - U S E R - G R O U P

Installing MongoDB 1. Download MongoDB. www.mongodb.com/downloads 2. Extract it. 3. Create the data folder. usually /data/db -or- C:datadb 4. Run mongod.exe That’s it! h t t p : / / c h r i s e d wa r d s . d r e a m h o s t e r s . c o m Introduction to MongoDB A No-SQL Persistence Alternative A U S T I N - . N E T - U S E R - G R O U P

Accessing MongoDB via the Shell • Inserting a document into a collection. • Querying a collection. • Modifying a document. • Deleting a document. h t t p : / / c h r i s e d wa r d s . d r e a m h o s t e r s . c o m Introduction to MongoDB A No-SQL Persistence Alternative A U S T I N - . N E T - U S E R - G R O U P

Accessing MongoDB via the Shell • Inserting a document into a collection. • Querying a collection. • Modifying a document. • Deleting a document. Lets do it! h t t p : / / c h r i s e d wa r d s . d r e a m h o s t e r s . c o m Introduction to MongoDB A No-SQL Persistence Alternative A U S T I N - . N E T - U S E R - G R O U P

Accessing MongoDB via C# • mongo-csharp-driver - 10gen-supported driver • mongodb-csharp driver - Most mature driver for C#. - Includes LINQ support • NoRM driver - Using NoRM for strongly typed access. - Also has LINQ support h t t p : / / c h r i s e d wa r d s . d r e a m h o s t e r s . c o m Introduction to MongoDB A No-SQL Persistence Alternative A U S T I N - . N E T - U S E R - G R O U P

Accessing MongoDB via C# • mongo-csharp-driver - 10gen-supported driver • mongodb-csharp driver - Most mature driver for C#. - Includes LINQ support • NoRM driver - Using NoRM for strongly typed access. - Also has LINQ support For more information and/or drivers for other languages, check out www.mongodb.org h t t p : / / c h r i s e d wa r d s . d r e a m h o s t e r s . c o m Introduction to MongoDB A No-SQL Persistence Alternative A U S T I N - . N E T - U S E R - G R O U P

Accessing MongoDB via C# Demo h t t p : / / c h r i s e d wa r d s . d r e a m h o s t e r s . c o m Introduction to MongoDB A No-SQL Persistence Alternative A U S T I N - . N E T - U S E R - G R O U P

Accessing MongoDB via REST • To enable basic REST interface, use --rest command line. - mongod.exe --rest • REST interface uses port +1000. - http://127.0.0.1:28017/database/collection/ - http://127.0.0.1:28017/database/collection/?filter&Field=Value • Full REST support is provided by the Sleepy.Mongoose lib. - http://github.com/kchodorow/sleepy.mongoose h t t p : / / c h r i s e d wa r d s . d r e a m h o s t e r s . c o m Introduction to MongoDB A No-SQL Persistence Alternative A U S T I N - . N E T - U S E R - G R O U P

MongoDB Replication • Master-Slave - Master - mongod.exe --master - Slave - mongod.exe --source <master url>:<master port> - Slave can use --slavedelay <delay in seconds> to have a rolling backup. • Replica Pairs (obsolete) • Replica Sets (Suggested Approach) - Full Failover support - Supports more than 2 servers in a replica cluster - Data center and rack aware - Can have passive set members (slaves) that are never primary • Master-Master (limited) - Both masters are also configured as slaves - Safe for insert, delete by id, and any queries - Unsafe for concurrent updates of single object h t t p : / / c h r i s e d wa r d s . d r e a m h o s t e r s . c o m Introduction to MongoDB A No-SQL Persistence Alternative A U S T I N - . N E T - U S E R - G R O U P

MongoDB Auto-Sharding: Features h t t p : / / c h r i s e d wa r d s . d r e a m h o s t e r s . c o m Introduction to MongoDB A No-SQL Persistence Alternative A U S T I N - . N E T - U S E R - G R O U P

MongoDB Auto-Sharding: Features • Based on a defined shard key. h t t p : / / c h r i s e d wa r d s . d r e a m h o s t e r s . c o m Introduction to MongoDB A No-SQL Persistence Alternative A U S T I N - . N E T - U S E R - G R O U P

MongoDB Auto-Sharding: Features • Based on a defined shard key. • Auto-balances as shard servers are added or removed. - Can go from single master to sharded system with zero downtime. h t t p : / / c h r i s e d wa r d s . d r e a m h o s t e r s . c o m Introduction to MongoDB A No-SQL Persistence Alternative A U S T I N - . N E T - U S E R - G R O U P

MongoDB Auto-Sharding: Features • Based on a defined shard key. • Auto-balances as shard servers are added or removed. - Can go from single master to sharded system with zero downtime. • Failover handled through replica sets. (each shard replicated) h t t p : / / c h r i s e d wa r d s . d r e a m h o s t e r s . c o m Introduction to MongoDB A No-SQL Persistence Alternative A U S T I N - . N E T - U S E R - G R O U P

MongoDB Auto-Sharding: Features • Based on a defined shard key. • Auto-balances as shard servers are added or removed. - Can go from single master to sharded system with zero downtime. • Failover handled through replica sets. (each shard replicated) • Map Reduce queries are run in parallel across shards. h t t p : / / c h r i s e d wa r d s . d r e a m h o s t e r s . c o m Introduction to MongoDB A No-SQL Persistence Alternative A U S T I N - . N E T - U S E R - G R O U P

MongoDB Auto-Sharding: Architecture • Shard Servers - Instance of mongod.exe --shardsvr - Optionally configured with a replication set for failover. • Config Servers - Instance of mongod.exe --configsvr - Usually a group of 3. System is up so long as 1 config server is running. • Shard Routers - Instance of mongos.exe --configdb <config server>:<config port> - Acts like mongod.exe to clients. - Can be on the same box as a shard server. - Can run on appserver to reduce traffic. h t t p : / / c h r i s e d wa r d s . d r e a m h o s t e r s . c o m Introduction to MongoDB A No-SQL Persistence Alternative A U S T I N - . N E T - U S E R - G R O U P

MongoDB Auto-Sharding: Architecture Sample Logical Architecture h t t p : / / c h r i s e d wa r d s . d r e a m h o s t e r s . c o m Introduction to MongoDB A No-SQL Persistence Alternative A U S T I N - . N E T - U S E R - G R O U P

MongoDB Auto-Sharding: Architecture Sample Physical Architecture h t t p : / / c h r i s e d wa r d s . d r e a m h o s t e r s . c o m Introduction to MongoDB A No-SQL Persistence Alternative A U S T I N - . N E T - U S E R - G R O U P

MongoDB Auto-Sharding: Configuration Startup Servers • Startup Shard Servers - mongod.exe --shardsvr • Startup Config Servers - mongod.exe --configsvr • Startup Shard Routers - mongos.exe --configdb <config server>:<config port> Configure Cluster • Add Shards to the Cluster - Execute the following command for each shard using either the driver or shell. - db.runcommand( { addshard : “<shard server>:<shard server port>” } ); • Enable Sharding on the Databases to Shard - db.runcommand( { enablesharding : “<dbname>” } ); • Specify Collections to Shard - db.runcommand( { shardCollection : “<collection>”, key : <key pattern> } ); h t t p : / / c h r i s e d wa r d s . d r e a m h o s t e r s . c o m Introduction to MongoDB A No-SQL Persistence Alternative A U S T I N - . N E T - U S E R - G R O U P

Introduction to MongoDB A No-SQL Persistence Alternative A U S T I N - . N E T - U S E R - G R O U P ? h t t p : / / c h r i s e d wa r d s . d r e a m h o s t e r s . c o m

About Me Chris Edwards Senior Developer at BancVue Ltd. Email: ChrisEdwards357@gmail.com Blog: http://chrisedwards.dreamhosters.com Twitter: @cedwards Github: http://github.com/chrisedwards (Sample code for this talk is posted) h t t p : / / c h r i s e d wa r d s . d r e a m h o s t e r s . c o m Introduction to MongoDB A No-SQL Persistence Alternative A U S T I N - . N E T - U S E R - G R O U P

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Introduction to mongo db

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