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Course Outline
- Section 1: Introduction to Big Data / NoSQL for Government
- NoSQL overview
- CAP theorem
- When is NoSQL appropriate for government
- Columnar storage
- NoSQL ecosystem
- Section 2: Cassandra Basics for Government
- Design and architecture
- Cassandra nodes, clusters, datacenters
- Keyspaces, tables, rows, and columns
- Partitioning, replication, tokens
- Quorum and consistency levels
- Labs: Interacting with Cassandra using CQLSH for government applications
- Section 3: Data Modeling – Part 1 for Government
- Introduction to CQL
- CQL datatypes
- Creating keyspaces and tables
- Choosing columns and types
- Choosing primary keys
- Data layout for rows and columns
- Time to live (TTL)
- Querying with CQL
- CQL updates
- Collections (list, map, set)
- Labs: Various data modeling exercises using CQL; experimenting with queries and supported data types for government use cases
- Section 4: Data Modeling – Part 2 for Government
- Creating and using secondary indexes
- Composite keys (partition keys and clustering keys)
- Time series data
- Best practices for time series data in government applications
- Counters
- Lightweight transactions (LWT)
- Labs: Creating and using indexes; modeling time series data for government projects
- Section 5: Data Modeling Labs – Group Design Session for Government
- Multiple use cases from various domains are presented
- Students work in groups to develop designs and models for government applications
- Discuss various designs, analyze decisions
- Lab: Implement one of the scenarios for a government project
- Section 6: Cassandra Drivers for Government
- Introduction to Java driver
- CRUD (Create, Read, Update, Delete) operations using Java client for government systems
- Asynchronous queries
- Labs: Using Java API for Cassandra in government applications
- Section 7: Cassandra Internals for Government
- Understanding Cassandra design under the hood
- SSTables, memtables, commit log
- Read path and write path
- Caching
- Vnodes
- Section 8: Administration for Government
- Hardware selection for government systems
- Cassandra distributions suitable for government use
- Installing Cassandra in a government environment
- Running benchmarks for government applications
- Tooling for monitoring performance and node activities
- DataStax OpsCenter
- Diagnosing Cassandra performance issues in government systems
- Investigating a node crash in government environments
- Understanding data repair, deletion, and replication for government applications
- Other troubleshooting tools and tips for government use
- Cassandra best practices (compaction, garbage collection) for government systems
- Section 9: Bonus Lab (Time Permitting) for Government
- Implement a music service like Pandora / Spotify on Cassandra for government use
Requirements
- proficient in the Java programming language
- experienced in a Linux environment (navigating the command line, editing files with vi or nano)
Lab Environment:
A fully functional Cassandra environment will be provided for government students. Participants will need an SSH client and a web browser to access the cluster.
Zero Installation: There is no requirement for students to install Cassandra on their personal devices!
21 Hours
Testimonials (3)
The 1:1 style meant the training was tailored to my individual needs.
Andy McGuigan
Course - Cassandra Administration
Topics approached. Very complete.
Carlos Eloi Barros
Course - Cassandra for Developers
Trainer had good practical knowledge about using Cassandra day-to-day at least for development purposes. Catering (snacks, coffee hour) were great 3 days length was good.
