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apache/cassandra-spark-connector

This system is the Apache Spark Cassandra Connector, a library that enables Apache Spark to read from and write to Apache Cassandra. It provides Java and Scala APIs for data access, including streaming, SQL integration, and optimized scanning. The codebase also includes a comprehensive test suite covering data types, authentication, and query optimization.

50.0

Adequate · 3 August 2026

27k

lines of production code

Scala

with Java

3

bus factor · 114 authors in all

3

measurements over time

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How it got here

2014–2019 · SBT migration and test infrastructure

The project underwent a significant build system migration from Maven to SBT, introducing a multi-module structure and automated tooling. This period also focused on establishing a robust testing framework, adding extensive integration and unit tests for Spark, Cassandra, and Java API components to ensure stability and correctness.

37 changes

2020 · integration test coverage expansion

This period focused on expanding integration test coverage for the Spark Cassandra Connector, particularly for Search Analytics, the Cassandra Catalog, and Storage Attached Indexes. The work included adding specific test suites to verify query optimization, namespace management, and predicate push-down behavior across various data types.

5 changes

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About this page

  • The description of this project is derived from its own commit history, not from its README.
  • The score is its highest published measurement, taken on 3 August 2026 at a pinned commit. It is not a live figure and does not change until the project is measured again.
  • Measured at commit 1c2ffa11ca — the exact code this score is about.
  • Scored under rubric rubric-2026.08.18. Score the same commit under that rubric and you get the same number.
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