Aruman Cassandra database
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The document discusses the benefits and features of Cassandra, an open-source NoSQL database, highlighting its advantages such as linear scalability, high availability, multi-region support, and lack of a single point of failure. It also compares Cassandra's functionalities with traditional relational databases, pointing out limitations like fixed schemas and costly joins. Additionally, it covers security measures for data communication and potential use cases, including messaging, fraud detection, and real-time applications.
Aruman Cassandra database
- 1. Welcome
- 3. Data Centre at NYCUSA GEO Data Centre at NYC ASIA GEO Data Centre at London Data API Data Centre at NYCUSA GEO
- 4. Limitations of RDBMS 1. Fixed schema, deals with structured data only. 2. Partition database has one dependencies, master node. 3. Expansion of nodes needs down time. 4. Same database serving Across geo , costly affair. 5. Too many joins to get simple data
- 5. Data Centre at NYC USA GEO Data Centre at NYC ASIA GEO Data Centre at London
- 6. Advantages of Cassandra • Linear Scaling • Hot swappable nodes • High Availability • Multi-region availability • Fast and reliable response • No single point of failure • Scalability Cassandra is open source nosql database.
- 8. Data Centre at NYC USA GEO Data Centre at NYC ASIA GEO Data Centre at London
- 10. HighAvailability No Master and node Every node is data node Application can connect to any node
- 11. Distributed and Decentralized 1 2 34 5 1 2 34 5 Data Centre 1 Data Centre 2 Distributed: Capable of running on multiple machines • Decentralized: No single point of failure No master-slave issues due to peer- to-peer architecture (protocol "gossip") SingleCassandra cluster may run across geographically dispersed data centres
- 12. Cassandra Security • Cassandra provides secure communication between a client and a database cluster, and between nodes in a cluster. ... Cassandra tools (cqlsh, nodetool, DevCenter) can be configured to use SSL encryption.The DataStax drivers can be configured to secure traffic between the driver and Cassandra. • Authentication can also be controlled externally with Kerberos (Kerberos is used to manage credentials securely) and LDAP (LDAP is used for holding authoritative information about the accounts, such as what they're allowed to access). • There are following types of permission that can be granted to the user. ALL ALTER AUTHORIZIZE CREATE DROP MODIFY SELECT
- 13. USA GEO Data Centre at NYC ASIA GEO Data Centre at London 1 2 34 5 1 2 34 5 1 2 34 5 1 2 34 5
- 14. Enterprise Edition Oracle Database -$47,500 per unit two 2-node RAC clusters which 2 sockets per server - $140,000 Microsoft SQL Server Enterprise Edition - $7000 per core. Microsoft operating system data center - $6155 per node DataStax Non-production - FREE DataStax Support per node - Less than $1000
- 15. Where it can be used? • Messaging • Fraud Detection • Personalization • Playlists and Collections • Recommendation engines • Global HRMS • Analysis database • Website status data • Real time Application