Quick Understanding of NoSQL
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1) NoSQL databases were developed to address the problems of scaling relational databases to handle big data workloads. 2) HBase is an open-source, distributed, versioned, non-relational database modeled after Google's BigTable. 3) Popular NoSQL databases like MongoDB, Cassandra, HBase, and Oracle NoSQL are compared based on their programming language, licensing, supported query languages, architecture, and suitability for different use cases.
Quick Understanding of NoSQL
- 1. Quick Understanding of NoSQL Edward J. Yoon @ Oracle
- 2. Agenda • Why Big Data solutions are appeared? – What was problem? • What’s HBase? • NoSQLs Trends – NoSQLs Comparison
- 3. Managing user profiles User-ID, …
- 4. Managing user profiles … User-ID, … … … …
- 5. Managing user profiles … User-ID, … … … … Let’s assume that, Most million+ users are login between 9 ~ 10 AM. And, I wanna update their last logged in time.
- 6. Managing user profiles … ! 1~3 millions records . User-ID, … Max connections, Hardware limit, Query performance on, …., etc. … … …
- 7. Managing user profiles … ! 1~3 millions records . User-ID, … Max connections, Hardware limit, Query performance on, …., etc. … … … … User-ID, … … Solution!? … … Manual Range/Hash Partitioning
- 8. Managing user profiles … ! 1~3 millions records . User-ID, … Max connections, Hardware limit, Query performance on, …., etc. … What happens, if scheme should be changed or, … … need to increase nodes? … User-ID, … … Solution!? … … Manual Range/Hash Partitioning
- 9. NoSQL • Scheme-free • Horizontal Scalability – Distributed Storage • Distributed computing e.g., M/R • Connection Pool
- 10. NoSQLs trends
- 11. Comparison Cassandra (V1.2) MongoDB (V2.2) • Written in: C++ • Written in Java • License: AGPL • License: Apache • Support Languages: All • Support Languages: All • Architecture: Master/slave, JSON • Architecture: Master/slave, Columnar • Queries: javascript expressions, MapReduce • Known issues: None • Queries: Hive (MapReduce) • Suitable for: Online applications • BigTable clone • Suitable for: Ad-hoc Analytics, Column scanning HBase (V0.92.0) Oracle NoSQL • Written in: Java • License: Apache • Support Languages: All • Written in: Java • Architecture: Master/slave, Columnar • Support Languages: Java • Queries: Hive (MapReduce) • Architecture: Master/slave, ACID • BigTable clone • Suitable for: Online applications • Suitable for: Ad-hoc Analytics, Column scanning • Synchronous Replication