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Apache Beam
What it is
Apache Beam is a free, open-source programming model for building data processing pipelines across batch and streaming workloads. The same Beam model supports both types of processing, and pipelines can run on execution engines known as runners, including Dataflow, Flink, Spark and the Direct Runner. SDKs and quickstarts are available for Java, Python, Go and TypeScript. Beam's model includes transforms such as ParDo, GroupByKey, Flatten and Combine, plus windowing and triggering capabilities. I/O connectors provide read and write transforms for external storage systems and support batch and streaming pipelines; listed examples include BigQuery, Snowflake, Apache Parquet and Apache Iceberg. Beam Playground lets users try transforms and examples without a local installation. Execution costs depend on the selected runner and infrastructure. The project is aimed at data and software developers building pipelines on supported back ends. Beam generally follows semantic versioning with exceptions, and APIs may change before the first stable 1.x release. The project provides community support through its user mailing list, Stack Overflow and Beam Slack channel.
For and against
For
- One model supports batch and streaming workloads.
- Pipelines can use multiple execution engines.
- SDKs available for Java, Python, Go and TypeScript.
- Connectors support external storage read and write.
- Playground examples require no local installation.
Against
- Execution costs depend on runner and infrastructure.
- APIs may change before the first stable 1.x release.
- Semantic versioning has stated exceptions.
The verdict
Beam offers a shared programming model for batch and streaming pipelines, with multiple runners, language SDKs and storage connectors. Plan for infrastructure costs and potential API changes before the first stable 1.x release.
Who it suits
Apache Beam suits data and software developers building batch or streaming pipelines for supported execution back ends. Its SDKs cover Java, Python, Go and TypeScript.
Plans and prices
Apache Beam SDK
open-source SDK; execution infrastructure supplied by selected runner
Read 14 Oct 2026 · beam.apache.org
Apache Beam
Open-source programming model; execution costs depend on the selected runner and infrastructure
Read 30 Sep 2026 · beam.apache.org
On the record
- API stability
- Beam generally follows semantic versioning, but APIs may change before the first stable 1.x release when versions are 0.x.y.beam.apache.org · read 14 Oct 2026
- Batch and streaming
- A single Beam pipeline model can express both bounded batch data and unbounded streaming data.beam.apache.org · read 14 Oct 2026
- Company founding and headquarters
- LinkedIn lists The Apache Software Foundation as founded in 1999 and headquartered in Wilmington, Delaware.linkedin.com · read 14 Oct 2026
- Company legal name
- Crunchbase identifies the legal entity behind the project as The Apache Software Foundation, a nonprofit organization.crunchbase.com · read 14 Oct 2026
- Company size
- LinkedIn lists the Apache Software Foundation company size as 5,001–10,000 employees.linkedin.com · read 14 Oct 2026
- Connectors
- Beam I/O connectors provide read and write transforms for external storage systems, with connectors available for both batch and streaming pipelines.beam.apache.org · read 30 Sep 2026
- Core API
- The programming API is organized around Pipeline, PCollection, PTransform, aggregation, user-defined functions and schemas.beam.apache.org · read 14 Oct 2026
- Cross-language SDKs
- Official and related SDK options include Java, Python, Go, SQL, TypeScript and Scala through Scio.beam.apache.org · read 14 Oct 2026
- Documentation
- Documentation includes conceptual guides, programming guides, SDK references, transform catalogs, runner setup pages, examples and a capability matrix.beam.apache.org · read 14 Oct 2026
- Extensibility
- TensorFlow Extended and Apache Hop are examples of projects built on Beam.beam.apache.org · read 14 Oct 2026
- Funding model
- Crunchbase describes the foundation as funded by individual donations and corporate sponsors rather than venture funding.crunchbase.com · read 14 Oct 2026
- Integration examples
- The connector catalog includes integrations such as BigQuery, Snowflake, Apache Parquet, and Apache Iceberg.beam.apache.org · read 30 Sep 2026
- Intended users
- Beam is aimed at data and software developers building data processing pipelines on supported back ends.beam.apache.org · read 30 Sep 2026
- Interactive learning
- Beam Playground lets users try transforms and examples without installing Beam locally.beam.apache.org · read 30 Sep 2026
- I/O integrations
- Python installation extras cover Google Cloud, AWS and Azure connectors, plus BigQuery, GCS, Datastore and machine-learning integrations.beam.apache.org · read 14 Oct 2026
- Java requirements
- The Java quickstart calls for JDK 8, 11 or 17 and Apache Maven, with Gradle optional.beam.apache.org · read 14 Oct 2026
- Known vulnerability
- CVE-2020-1929 affected Beam MongoDB I/O versions 2.10.0–2.16.0 and was mitigated by upgrading to 2.17.0 or newer.beam.apache.org · read 14 Oct 2026
- Latest release
- Beam SDK 2.77.0 was released on October 7, 2026.beam.apache.org · read 14 Oct 2026
