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DataStax Distribution of Apache Cassandra™ 3.11 Latest DDAC patch: 5.1.19

Getting started for Administrators
Information about using DataStax Distribution of Apache Cassandra™ (DDAC) for Administrators.
Getting started for developers
Information about developing applications for the DataStax Distribution of Apache Cassandra.
DDAC FAQ
Frequently asked questions about DataStax Distribution of Apache Cassandra 3.11.
Release notes
DataStax Distribution of Apache Cassandra release notes cover cluster requirements, upgrade guidance, security updates, changes and enhancements, issues, and resolved issues.
Database architecture
Important information for understanding how the DataStax Distribution of Apache Cassandra™ 3.11 database works.
Database internals
Information about the DataStax Distribution of Apache Cassandra 3.11 database.
- Storage engine
  About the DataStax Distribution of Apache Cassandra 3.11 storage structure and engine.
- About reads and writes
  Understanding how the DataStax Distribution of Apache Cassandra 3.11 database stores data.
- Data consistency
  Topics about how up-to-date and synchronized a row of data is on all replicas.
  - Read and write consistency
    An introduction to how the DataStax Distribution of Apache Cassandra 3.11 extends eventual consistency with tunable consistency to vary the consistency of data read and written.
  - Differences between Cassandra and RDMBS transactions
    The DataStax Distribution of Apache Cassandra 3.11 does not use RDBMS ACID transactions; instead Cassandra offers atomic, isolated, and durable transactions with eventual/tunable consistency.
  - Using lightweight transactions
    When and why to use lightweight transactions.
  - Consistency level performance
    Use tracing to discover what the consistency level is set to, and how it affects performance.
  - Consistency level configuration
    Consistency levels in DataStax Distribution of Apache Cassandra 3.11 can be configured to manage availability versus data accuracy.
  - Configuring serial consistency
    Serial consistency levels control lightweight transaction (LWT) isolation.
  - Read requests
    A coordinator node can send three types of read requests to a replica.
  - Write requests
    The write consistency level determines how many replica nodes must respond with a success acknowledgment in order for the write to be considered successful
Installing Cassandra
DataStax provides a binary tarball for installing the DataStax Distribution of Apache Cassandra 3.11.
Configuration
Information about configuring DataStax Distribution of Apache Cassandra 3.11, such as recommended production setting, configuration files, snitch configuration, start-up parameters, heap dump settings, using virtual nodes, and more.
Initializing a cluster
Initializing a Cassandra cluster includes configuring, and choosing how the data is divided across the nodes in the cluster.
Security
Security guide for DataStax Distribution of Apache Cassandra 3.11.
Tools
Tools include nodetool, cfs-stress tool, and the sstableloader.
Operations
DataStax Distribution of Apache Cassandra 3.11 operation topics, such as node and datacenter operations, changing replication strategies, configuring compaction and compression, caching, and tuning Bloom filters.
Planning
Hardware selection, estimating disk capacity, anti-patterns, cluster testing and more.
CQL
CQL (Cassandra Query Language) is a query language for the DataStax Distribution of Apache Cassandra 3.11 database.

Data consistency

Topics about how up-to-date and synchronized a row of data is on all replicas.

How are consistent read and write operations handled?
An introduction to how the DataStax Distribution of Apache Cassandra 3.11 extends eventual consistency with tunable consistency to vary the consistency of data read and written.
How do DataStax Distribution of Apache Cassandra 3.11 transactions differ from RDBMS transactions?
The DataStax Distribution of Apache Cassandra 3.11 does not use RDBMS ACID transactions; instead Cassandra offers atomic, isolated, and durable transactions with eventual/tunable consistency.
How do I accomplish lightweight transactions with linearizable consistency?
When and why to use lightweight transactions.
How do I discover consistency level performance?
Use tracing to discover what the consistency level is set to, and how it affects performance.
How is the consistency level configured?
Consistency levels in DataStax Distribution of Apache Cassandra 3.11 can be configured to manage availability versus data accuracy.
How is the serial consistency level configured?
Serial consistency levels control lightweight transaction (LWT) isolation.
How are read requests accomplished?
A coordinator node can send three types of read requests to a replica.
How are write requests accomplished?
The write consistency level determines how many replica nodes must respond with a success acknowledgment in order for the write to be considered successful

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