Cassandra

Manage massive amounts of data, fast, without losing sleep.

Retrospective discussing the first 10 years of Cassandra's history.

Highlights of the growth of Cassandra over it's first 10 years.

Introduction to what Cassandra is, where it came from, and some of it's benefits.

Cassandra IoT usecase with Raspberry Pi and a DHT11 Sensor.

MySubscribers is a very simple application (Start of an application) which allows you to create, read, update and delete users/subscribers. This application was only created to aid the YouTube course.

Most widely used commercial distribution of Cassandra, integrated with Apache Spark (for SparkSQL, analytics), Apache Solr (for secondary index), Apache TinkerPop based Graph stored in Cassandra, and OpsCenter.

Datastax Distribution of Cassandra, a production ready distribution with a bulk loader supported by Datastax. DDAC is Deprecated now, but Datastax is still supporting Cassandra with it's new Luna Service.

NoSQL data store using the seastar framework, compatible with Cassandra.

YugaByteDB is a transactional, high-performance database for building distributed cloud services. It supports Cassandra-compatible and Redis-compatible APIs, with PostgreSQL in Beta.

DataStax Astra Cassandra as a Service running on the Kubernetes operator Cassandra available on AWS and GCP.

IBM Cloud Managed Service for DataStax Enterprise.

Instaclustr provides a fully managed and SOC 2 certified hosted & managed service for Cassandra® on AWS, Azure, GCP and IBM Cloud.

Aiven for Cassandra is a managed and hosted distributed NoSQL database providing scalability, high availability, and excellent fault tolerance. Cassandra as a Service is available on Google Cloud Platform, Amazon Web Services, Microsoft Azure, DigitalOcean, and UpCloud.

Azure Managed Instance for Cassandra provides automated deployment and scaling operations for managed open-source Cassandra datacenters. It accelerates hybrid scenarios and reduces ongoing maintenance.

Azure Cosmos DB provides the Cassandra API (preview) for applications that are written for Cassandra that need premium capabilities.

Amazon Web Services (AWS) Amazon Keyspaces for Cassandra provides a CQL compliant access to a "Serverless" auto-scaling datastore.

Installation process and user guide for the Cassandra / Spark OSS Stack.

Documentation for CQL.

Blog post for the considerations on the efficiency of the LIMIT clause.

Tutorial documenting how to build a RESTful API using Go and Cassandra.

Java tool to copy data from one cassandra table to another.

Examples for the Spring Data Cassandra Project.

Blog post on setting up a really simple Spark job that does a data migration for Cassandra.

Blog post showing how to connect Spark to Cassandra, analyze event data from Cassandra, and store the results of the analysis into S3, making it available for reporting or further analysis.

How to import a file from S3 into cassandra using Spark.

Few good reasons why you'd want to consider Cassandra.

Using Packer, Ansible/SSH and AWS command line tools to create and DBA manage EC2 Cassandra instances in AWS.

Guide on how to install Cassandra on the popular linux distributions RedHat and CentOS.

Practical guide for when to use and when not to use Cassandra.

Great guide to learn about Cassandra, from Instaclustr.

Your roadmap to understanding whether NoSQL is right for you.

Great article for new developers to Cassandra.

Blog post documenting similarities and differences between CQL and SQL.

Demonstration of migrating data from MySQL to Cassandra.

Lesson plan for users just starting out with Cassandra.

Picking the right data model is the hardest part of using Cassandra. If you have a relational background, CQL will look familiar, but the way you use it can be very different.

Presentation that explores and explains the differences between the CQL and SQL languages.

Blog post to describe what is supported by the CQL WHERE clause and the reasons why it differs from normal SQL.

Sample Cassandra CQL Schema for a YouTube clone.

Maven project that contains examples showcasing the features and functionality of the Spring Data Cassandra project.

Presentation and Article on wide partions, tombstones, and data skew.

Blog post discussing a common Cassandra data modeling technique called bucketing.

Simple notes on how to estimate the size of your cluster.

Transaction library for Cassandra that makes non-ACID distributed databases/storages ACID-compliant.

Explains five Cassandra data modeling best practices.

Good visual explanation of how Cassandra keeps consistent.

The 3.x storage engine makes it easier for Cassandra to get bytes off disk.

Blog post describing the steps Cassandra takes when a column is dropped.

Tuning the balance between GC Grace and Hinted Handoff.

Explains how deletes create tombstones in Cassandra and what they are.

Deleting distributed and replicated data from a system such as Cassandra is far trickier than in a relational database.

Good follow up to the last article on Tombstones.

Indepth analysis of cell and range tombstones.

Large number of tombstones causes Latency and heap pressure.

How someone dealt with tombstone issues and reclaimed space in their cluster.

Overview of how Cassandra manages data on disk.

Guide that provides a description of the different thread pools and how to monitor them. Includes what to alert on, common issues and solutions. Old but very useful reference.

High level overview in one page of how Cassandra works.

Explore how an incoming request was processed by Cassandra before, see what they changed, and look at new relevant configuration knobs available.

High level overview of Cassandra from Instaclustr.

Do you really want to use Cassandra? Learn why not to use it.

Blog post detailing different types of monitoring tools and their purpose.

Guide to help you monitor Cassandra performance and work metrics regardles of which monitoring tool you choose to use.

Case study of using Cassandra metrics in Grafana.

Quick setup guide to using Cassandra with Prometheus.

Blog post explaining how to set up Cassandra monitoring with influxDB and Grafana.

Blog post detailing how Cassandra metrics can be gathered.

Continuation of the previous entry exploring the topic of Cassandra metric reporters mentioned in Part I. The goal is to configure a reporter that sends metrics to an external time series database.

Blog post describing how to monitor Cassandra using the Intel Snap open source telemetry framework.

Blog post that aims to touch all the important aspects of Cassandra monitoring.

Some tips and tricks to do basic Cluster operations without tools like Chef, Ansible, or Salt.

Little known tool to do nodetool operations with less resources.

Indepth article on how to add nodes to a running Cassandra cluster.

How to avoid the long bootstrapping process.

Indepth article about Backup and recovery in AWS.

Good comparison of different backup and restoration strategies for Cassandra.

Instaclustr's cassandra backup tool.

Simple and integrated backup tool for Cassandra.

Tutorial on how to use CStar.

Cassandra backup system.

Checklist for determining the efficiency of your Cassandra database.

Guide to tracking down performance issues in production level Cassandra clusters.

Documentation for tuning JVM.

Visually examining Cassandra performance visually using Flamegraphs.

Optimizing garbage collection for better performance.

Monitoring and audit power kit for Cassandra.

Best suited for time series data that expires, Time Window Compaction Strategy comes with some caveats.

Documenting a process by which we tell Cassandra to create a compaction task for one or more tables explicitly.

Benchmarking schemas and configuration changes using the cassandra-stress tool, before pushing such changes out to production is one of the things every Cassandra developer should know and regularly practice.

Blog post detailing caveats with cassandra-stress when modeling real workloads.

Tool for stress testing DSE.

Plugin for the Gatling load injector. It adds CQL support in Gatling for Datastax Enterprise. It allows for benchmarking Datastax Enterprise features, including DSE Graph Fluent API.

The goal of the repo is to provide a sample of the Gatling DSE Stress Framework's usage. Feel free to submit a pull request with example simulations.

Discusses how to do application level data encryption to properly manage secure information in Cassandra.

Inter-Node Encryption (And a Gentle Intro to Certificates).

Pluggable authentication implementation for Cassandra, providing a way to authenticate and create users based on a configured LDAP server.

The example used here is Cassandra data stored on ephemeral disks.

Learn about how to plan and implement Multi-Data Centers: Part 1.

Learn about how to plan and implement Multi-Data Centers: Part 2.

Provisioning tool for Cassandra designed for developers looking to both benchmark and test the correctness of Cassandra. It assists with builds and starting instances on AWS.

Guide detailing how to set up a Cassandra cluster with automation using Ansible.

Blog that shows how to setup DC/OS in the Amazon cloud, how to install Cassandra on a DC/OS cluster, and finally new ways to interact with and Cassandra after it is installed.

Learn about comparing Cassandra on Azure VMs w/ Local vs. Remote storage.

Article reviewing how to setup a complete Cassandra application with monitoring on Docker.

Set of scripts and config files to run a Cassandra cluster from Docker.

Docker-Compose script for Cassandra + Zeppelin setup.

Cassandra Image using Packer for Docker and EC2 AMI. Covers managing EC2 Cassandra clusters with Ansible.

Instaclustr public docker image for Cassandra. It contains docker images for Cassandra 3.0 and 3.11.1.

Cassandra and Elassandra docker images.Cass Operator is maintained by a team at DataStax and it is part of what powers DataStax Astra.

K8ssandra provides a production-ready platform for running Cassandra on Kubernetes. This includes automation for operational tasks such as repairs, backups, and monitoring.

Datastax's Cassandra Kubernetes Operator which supports Datastax as well as open source Cassandra containers on Kubernetes.

The Cassandra operator manages Cassandra clusters deployed to Kubernetes and automates tasks related to operating an Cassandra cluster.

Kubernetes operator that manages Cassandra clusters inside Kubernetes. Well designed and organized.

Kubernetes operator automates the Cassandra operations such as deploying a new rack aware cluster, adding/removing nodes, configuring the C and JVM parameters, upgrading JVM and C versions. Written in Go.

The Elassandra Kubernetes Operator automates the deployment and management of Elassandra clusters deployed in multiple Kubernetes clusters.

Rook is an open source cloud-native storage orchestrator, providing the platform, framework, and support for a diverse set of storage solutions to natively integrate with cloud-native environments. They have a special operator for Cassandra amongst other providers.

The KUDO Cassandra Operator makes it easy to deploy and manage Cassandra on Kubernetes.

Blog post detailing how a streaming analytics system on top of open source, big data components can be done.

Dockerfile that sets up a complete streaming environment for experimenting with Kafka, Spark streaming (PySpark), and Cassandra.

Introductory sample scala app using Apache Spark Streaming to accept data from Kafka and write a summary to Cassandra.

Simple sample job illustrating the use of Spark to execute Apache Spark analytics with Cassandra with SSL connection.

Quickstart guide on how to use .NET and the Azure Cosmos DB Cassandra API to build a profile app.

C# Driver for Cassandra from DataStax.

Documentation on the C# Driver for Cassandra from DataStax.

Documentation on CQL data types to C# types.

Instaclustr article on how to connect to Cassandra with C#.

Article shows how to connect to Amazon Keyspaces by using a .NET Core client driver.

Cassandra ADO.NET Data Provider enables user to easily connect to Cassandra data from .NET applications.

Article covering how to create infinite scroll pagination with Cassandra and ASP.NET Core C#.

Library that lets you expose Cassandra tables as Spark RDDs, write Spark RDDs to Cassandra tables, and execute arbitrary CQL queries in your Spark applications.

Simple sample job illustrating the use of Spark Jobserver to execute Apache Spark analytics with Cassandra.

End-to-End, Real-time, Advanced Analytics Big Data Reference Pipeline using Spark, Spark SQL, Spark ML, GraphX, Spark Streaming, Kafka, NiFi, Cassandra, ElasticSearch, Redis, Tachyon, HDFS, Zeppelin, iPython/Jupyter Notebook, Tableau, Twitter Algebird.

Outlines general use cases and best practices of Spark & Cassandra together.

Tuning DSE Search – Indexing latency and query latency.

Lucene based secondary indexes for Cassandra.

Elassandra = Elasticsearch as a Cassandra secondary index.

Cassandra trigger to push realtime updates to elasticsearch.

Horizontally scalable, highly available, multi-tenant, long term Prometheus storage.

Distributed Prometheus time-series database compatible with Prometheus queries.

Cassandra backed Carbon daemon and metric web service. IPONWEB repository, compatible with Carbon.

Fast scalable time series database.

KairosDB documentation.

Time-series data store based on Cassandra.

New-fangled Timeseries Data Store that powers OpenNMS.

Time series / distributed tracing database powered by Cassandra by Redhat.

Hawkular's GitHub resources.

GitHub resources for OpenTSDB. A Distributed, Scalable Monitoring System built on a Time Series Database.

Successor to TitanDB , Commercial Tinkerpop / Gremlin compatible large scale Graph Database on DSE.

Distributed Graph Database, predecessor to DSE Graph, JanusGraph, and now HugeGraph.

Introductory slides about TitanDB.

JanusGraph: an open-source, distributed graph database, successor to TitanDB.

Slides detailing deployment options and technical aspects of JanusGraph.

HugeGraph Database core component, including graph engine, API, and built-in backends.

Documentation for HugeGraph.

Article comparing the two popular NoSQL databases.

Stargate is an open-source data gateway that provides REST, GraphQL and schemaless JSON interfaces to Cassandra.

Introduction and high-level overview of Stargate.

Open source Backend as a Service (BaaS) on Cassandra, Elasticsearch with client SDKs for iOS/Android/.NET/Java.

Introductory presentation to Apache UserGrid.

Tamper-evident and scalable distributed ledger platform.

Distributed storage with REST API & dispatcher for backend services.

Shared spec and tests for RESTBase table storage.

Cassandra ORM/ODM/OGM for Node.js with optional support for Elassandra & JanusGraph.

Java client driver for Cassandra.

Modern, feature-rich, and highly tunable C/C++ client library for Cassandra (1.2+) and DataStax Enterprise (3.1+) using exclusively Cassandra's native protocol and Cassandra Query Language v3.

Modern, feature-rich and highly-tunable Python client library for Cassandra (2.1+) using exclusively Cassandra's binary protocol and Cassandra Query Language v3.

Ruby client driver for Cassandra. This driver works exclusively with the Cassandra Query Language version 3 (CQL3) and Cassandra's native protocol.

Modern, feature-rich and highly tunable Node.js client library for Cassandra (1.2+) and DataStax Enterprise (3.1+) using exclusively Cassandra's binary protocol and Cassandra Query Language v3.

Modern, feature-rich and highly tunable C# client library for Cassandra (1.2+) and DataStax Enterprise (3.1+) using exclusively Cassandra's binary protocol and Cassandra Query Language v3.

DataStax PHP Driver for Cassandra.

Achilles is an open source Persistence Manager for Cassandra,with the features like Advanced bean mapping (compound primary key, composite partition key, timeUUID, ect),Native collections and map support,and so.

PHP client library for Cassandra.

Caffinitas is an advanced object mapper for Cassandra which has been especially designed to work with Datastax Java Driver 2.1+ against Cassandra 2.1, 2.0 or 1.2.

Spring Data for Cassandra offers a familiar interface to those who have used other Spring Data modules in the past.

Package gocql implements a fast and robust Cassandra client for the Go programming language.

Visual data modeling tool for NoSQL databases and stuctures like Cassandra, ElasticSearch, Graph DBs, JSON, APIs.

The Cross-Platform IDE for Databases & SQL by JetBrains, with support for Cassandra.

The Management API is a sidecar service layer that attempts to build a well supported set of operational actions on Cassandra® nodes that can be administered centrally.

Simplified management for DataStax Enterprise and Cassandra database clusters.

Compare-and-swap tool for Cassandra created by Datomic.

Unified resource scheduler created by Uber. This tool can handle many nodes and clusters through resource management and scalability.

Collection called cassandra that aims at providing all Ansible modules allowed to interact with Cassandra.

Documentation for Ansible-Galaxy: Cassandra.

Set of Ansible playbooks that will build a Datastax Enterprise cluster.

DSE Installation and Upgrade Ansible Playbooks/Roles for Ubuntu Linux.

DbSchema: Cassandra Diagram Designer & GUI Admin Tool which can do Cassandra amongst other databases.

Third party tool for dealing with all sorts of databases including Cassandra.

Multi-db tool for Linux, Mac, and Windows that works with Cassandra.

Automated repairs for Cassandra. Supports all versions.

Cassandra performance testing platform.

Tool for testing the DataStax Spark Connector against Cassandra or DSE.

Cassandra CQL migration tool. cqlmigrate is a library for performing schema migrations on a cassandra cluster.

Cassandra migration tool for java is a lightweight tool used to execute schema and data migration on Cassandra database.

Cassalog is a schema change management library and tool for Cassandra that can be used with applications running on the JVM.

Cdeploy is a simple tool to manage your Cassandra schema migrations in the style of dbdeploy.

Simple calculator to see how size / replication factor affect the system's consistency.

Web interface for Cassandra.

CassandraRestfulAPI project exposes the cassandra data tables with the help of Restful API.

Language-agnostic as well as storage-agnostic web interface for storing data into persistent storage systems, the metadata layer abstracts a lot of storage details and the pattern automation APIs take care of automating common data access patterns.

Cassandra CQL Syntax Highlighter for Vim.

Distributed SQL Query Engine for Big Data. Presto allows querying data where it lives, including Hive, Cassandra, relational databases or even proprietary data stores.

Toolkit for parsing, creating and doing other fun stuff with Cassandra 3.x SSTables.

Simple Tool to Export / Import Cassandra Tables into JSON.

Multiple different tools combined into one that helps admins get summaries, metadata, partition info, cell info.

Simple gui tool for browsing tables and data in Cassandra.

Very useful tool to test out a CQL schema and visualize what the partition would like in relationship to the columns and rows.

Quick and easy way to snapshot files in a Cassandra database and back them up using Ansible.

Integration for Cassandra with the Slack app, which stores old messages that Slack no longer does itself.

Cassandra manager with a web UI for RESTful APIs.

Library to help elect leaders using cassandra. Uses paxos to build a leadership election module.

Terraform module that creates a Cassandra cluster.

Third party tool that allows monitoring and metrics for Cassandra nodes and clusters.

Provisioning tool for Cassandra designed for developers looking to benchmark and test Cassandra. It assists with builds and starting instances on AWS.

Free web based environment that simplifies a data exploring & schema management with Cassandra database.

ValuStor is a key-value pair database solution.

Cassandra / DataStax Enterprise database migration (schema evolution) library.

Tool to Develop a graph database app.

Migrate data extract using Spark to Scylla, normally from Cassandra.

Create and sign Java keystores.

Distributed tracing system.

GSSAPI authentication provider for Cassandra.

GSSAPI authentication provider for the Cassandra Java driver.

Command line tool for consistent rebuilding of a Cassandra cluster.

Command line tool for rewriting SSTables to remove TTLs.

CLI tool for programmatic generation of Cassandra SSTables.

Java agent that exports Cassandra metrics to Prometheus.

Go client for Instaclustr Icarus sidecar.

Twissandra is an example project, created to learn and demonstrate how to use Cassandra. Running the project will present a website that has similar functionality to Twitter.

Test server for sampling how long it takes mobile & web clients to make various types of requests to a server doing common request patterns.

Cassandra Cluster Admin is a GUI tool to help people administrate their Cassandra cluster.

Python Fabric scripts to help automate the launching and managing of cluster testing on AWS.

Generic scripts to review and monitor cassandra, from Spotify.

Script/library to create, launch and remove an Cassandra cluster on localhost.

Co-Process for backup/recovery, Token Management, and Centralized Configuration management for Cassandra.

Cassandra cluster orchestration tool for the command line.

Highly available, horizontally scalable queuing and notification service compatible with AWS SQS and SNS.

Distributed queue built off of Cassandra.

Distributed, scalable, durable, and highly available message queue system.

Scala library for scheduling arbitrary code to run at an arbitrary time.

Cassandra appenders for Log4j.

Metric collection and Dashboards for Cassandra (2.2, 3.0, 3.11, 4.0) clusters. Comes with dashboards for Graphana.

Simple scripts for working with Cassandra logs.

Converts the output of CFStats to CSV.

Perl Based scripts to get metrics for monitoring using Jolokia.

Very simple console tool for monitoring column families read/write activities at remote cassandra host.

Java Agent for Cassandra integration with StatsD.

Definitive documentation for all published versions.

Documentation and Drivers from DataStax.

Free online courses on Cassandra.

The #cassandra and #cassandra-dev channels are official slack channels migrating from IRC.

Answered question regarding connecting DataStax Astra and an ASP.NET Core API published to Microsoft Azure.

DataStax, Inc. is a data management company that provides commercial support, software, and cloud database-as-a-service based on Cassandra.

Codecentric is an IT consulting company, these are their blog posts surrounding the topic of Cassandra.

Pythian provides data and cloud-related services. The company provides services for Oracle, SQL Server, MySQL, Hadoop, Cassandra and other databases and their supporting infrastructure.

Managed and supported open source solutions for Cassandra, Kafka, Elasticsearch & Redis.

OpenCredo is a consulting company that helps clients make informed decisions around cloud native and open source technologies, as well as public cloud services.

Duyhai Doan is a freelance big data and cloud architect who values sharing knowledge and contributing to the technology community.

Amy Tobert is a full-stack engineer & leader with passion for sustainable systems and people-centered leadership. Her blog details different Cassandra deployments amont other topics.

Christopher Batey is a software engineer of over 15 years and is a primary contributor to Akka and occasional contributor to Cassandra.

Tim Ojo is the creator of Distributed Bytes and software engineer at Capital one. These are a collection of his posts surrounding the topic of Cassandra.

Learn about Netflix’s world class engineering efforts, company culture, product developments and more.

Cassandra related posts on Spotify's official technology blog.

Ryan Svilha is a principle engineer at DataStax. His blog posts covers topics surround Cassandra and associated tools.

Anant builds and manages business platforms of which they connect customer experiences and information systems with real-time data platforms.

Joint webinar between Amazon Web Services (AWS) and Stackdriver, an AWS Technology partner, to learn best practices that apply to storing, analyzing and managing queries that equate to over 1+ billion measurements a day.

Talk given by Alain Rodriguez, Consultant at The Last Pickle, discussing what to monitor in Cassandra, how, and why.

Great talk by Russell Spitzer maintainer of the Spark Cassandra connector.

Collection of all past Cassandra.Lunch webinars including videos, slides, and Blog posts surrounding all topics Cassandra.

Getting a C# .NET core application started to work against a Cassandra or DSE database.

How to create a performant API using Python / Flash.

Simple REST API with hapi Node.js framework on top of a Cassandra database.

Presentation that details how Gumgum scaled out from one local Cassandra datacenter to a multi-datacenter Cassandra cluster and all the problems they encountered and choices they made while implementing it.

Includes details on configuring SSL, setting up a certificate authority and creating certificates and trust chains for the JVM.

Ben Bromhead CTO of Instaclustr, will explore the various ways in which you can setup and secure Cassandra appropriately for your threat environment.

Slides by Russell Spitzer maintainer of the Spark Cassandra connector.