apache/beam

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Apache Beam is a unified programming model for Batch and Streaming data processing.

Stars: 8.7k
Forks: 4.7k
Open beginner issues: 0
Indexed issues: 3.8k
Avg merge: 2d 10h
Merged PRs (30d): 197

Dominant language: Java
License: Apache-2.0
Last GitHub push: Sep 18, 2026
Latest indexed: Sep 14, 2026
Contributing guide: Contributing guide
Code of conduct: Code of conduct
Beginner labels: good first issue

Beginner friendly Everything

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20 beginner-friendly issues open

[Bug]: Row.toString throws for an ITERABLE field that is not backed by a List Open

java P3

Difficulty 2/5 1-3 hours Newbie friendliness 76/100

apache/beam#39749 · Opened Aug 14, 2026
Upgrade vendored grpc to remove vulnerabilities coming from netty Open

Difficulty 2/5 1-3 hours Newbie friendliness 68/100

apache/beam#39624 · 2 reactions · Opened Aug 5, 2026
[Failing Test]: JmsIOTest. testCheckpointMark flaky Open

bug failing test flake P2 pinned tests

Difficulty 2/5 1-3 hours Newbie friendliness 68/100

apache/beam#30225 · 2 comments · Opened Feb 6, 2024
[Bug]: PubsubIO used in batch incorrect batch cutoff size Open

bug io P3 pinned pubsub

Difficulty 2/5 1-3 hours Newbie friendliness 78/100

apache/beam#28011 · 4 comments · Opened Aug 15, 2023
[Bug]: Update or Remove Integrations page Open

awaiting triage bug P2 stale website

Difficulty 2/5 1-3 hours Newbie friendliness 65/100

apache/beam#27613 · 3 comments · Opened Jul 22, 2023
[Task]: Bump HCLS API version from GA to Alpha/Beta Open

awaiting triage io java P2 stale task

Difficulty 2/5 1-3 hours Newbie friendliness 65/100

apache/beam#27566 · 1 comment · Opened Jul 19, 2023
[Feature Request]: Create a "Try Apache Beam YAML" landing page Open

awaiting triage examples new feature P3 stale

Difficulty 2/5 1-3 hours Newbie friendliness 72/100

apache/beam#27450 · 2 comments · Opened Jul 11, 2023
[Task]: Rewrite Go README Open

go P3 stale task

Difficulty 2/5 1-3 hours Newbie friendliness 68/100

apache/beam#27414 · 2 comments · Opened Jul 9, 2023
Add Gradle instruction to Java quick start guide Open

build P3 sub-task

Difficulty 1/5 Under an hour Newbie friendliness 68/100

apache/beam#20256 · Opened Jun 4, 2022
Missing required prop from BigQueryIO javadoc Open

bug gcp io java P3

Difficulty 1/5 Under an hour Newbie friendliness 65/100

apache/beam#20046 · Opened Jun 4, 2022
Release guide: build Dataflow containers before running postcommits on the release branch Open

bug build P3

Difficulty 1/5 Under an hour Newbie friendliness 62/100

apache/beam#20039 · Opened Jun 4, 2022
Default methods not allowed in PipelineOptions Open

beam-model bug P3

Difficulty 2/5 1-3 hours Newbie friendliness 68/100

apache/beam#19930 · Opened Jun 4, 2022
remove ambiguity of Setup/StartBundle javadocs in DoFn Open

core improvement java P3

Difficulty 2/5 1-3 hours Newbie friendliness 62/100

apache/beam#19699 · Opened Jun 4, 2022
PGBKCVOperation is undocumented Open

core documentation improvement P3 python

Difficulty 1/5 Under an hour Newbie friendliness 72/100

apache/beam#19575 · 1 comment · Opened Jun 4, 2022
Log message argument missing for stager's .whl extra_package warning Open

bug core P4 runners

Difficulty 1/5 Under an hour Newbie friendliness 72/100

apache/beam#19558 · Opened Jun 4, 2022
PCollectionViews$SimplePCollectionView.hashCode once again allocates memory (fix reverted, then fixed again) Open

core improvement java P4

Difficulty 1/5 Under an hour Newbie friendliness 68/100

apache/beam#19243 · Opened Jun 3, 2022
Improve documentation when using AvroIO dynamic destination with user define objects Open

avro improvement io java P4

Difficulty 1/5 Under an hour Newbie friendliness 68/100

apache/beam#19102 · Opened Jun 3, 2022
Contributor's guide needs to document how to install Python SDK from source Open

core improvement P3 python

Difficulty 2/5 1-3 hours Newbie friendliness 62/100

apache/beam#18891 · Opened Jun 3, 2022
Update Documentation of BigQuery source/sink to include the exact format of data read/written Open

core improvement P3 python

Difficulty 2/5 1-3 hours Newbie friendliness 62/100

apache/beam#18564 · Opened Jun 3, 2022
Add support for path with braces for Google Cloud Storage Open

gcp improvement io java P3

Difficulty 2/5 1-3 hours Newbie friendliness 65/100

apache/beam#18505 · Opened Jun 3, 2022

apache/beam

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