Data Engineering Good First Issues

data-engineeringdata

Open

[Bug] [workflow define] Bug datax wants to use resource file error

backendbughelp wanted

apache/dolphinscheduler #18,389 opened Jul 2, 2026 · Java · 11,659 stars

Why recommendedNo assignee yet · Has a beginner-friendly label

No assignee yetHas a beginner-friendly labelContributing guide available

1 comment0 reactions0 assignees

Open

[Bug] [Connector-V2] [TiDB-CDC] resolvedTs keeps advancing but row change events are silently missed

bughelp wanted

apache/seatunnel #11,013 opened Jun 5, 2026 · Java · 6,897 stars

Why recommendedNo assignee yet · Has a beginner-friendly label

No assignee yetHas a beginner-friendly label

8 comments0 reactions0 assignees

Open

Heatmap with "Normalize Across" x/y will fail when filters reduce the data to a single column/row.

good first issuevalidation:requiredviz:charts:heatmap

apache/superset #40,709 opened Jun 3, 2026 · TypeScript · 72,837 stars

Why recommendedNo assignee yet · Has a beginner-friendly label

No assignee yetHas a beginner-friendly labelContributing guide available

3 comments0 reactions0 assignees

Open

[BUG] sporadic convergence failures in `BoxCoxBiasAdjustedForecaster`

buggood first issuemodule:forecasting

sktime/sktime #10,301 opened May 30, 2026 · Python · 7,162 stars

Why recommendedNo assignee yet · No comments yet

No assignee yetNo comments yetHas a beginner-friendly labelContributing guide available

0 comments0 reactions0 assignees

Open

`remove_orphan_files` scopes `file_list_view` with raw string prefix matching

buggood first issue

apache/iceberg #16,493 opened May 20, 2026 · Java · 5,146 stars

Why recommendedNo assignee yet · Has a beginner-friendly label

No assignee yetHas a beginner-friendly labelContributing guide available

8 comments0 reactions0 assignees

Open

[Feature][Zeta] Support resuming a force-stopped streaming job from the latest successful checkpoint

featurehelp wanted

apache/seatunnel #10,926 opened May 20, 2026 · Java · 6,897 stars

Why recommendedHas a beginner-friendly label

Has a beginner-friendly label

3 comments0 reactions1 assignee

Open

PR-I: Add dedicated knowledge sources

featurehelp wanted

apache/seatunnel #10,921 opened May 19, 2026 · Java · 6,897 stars

Why recommendedNo assignee yet · Has a beginner-friendly label

No assignee yetHas a beginner-friendly label

1 comment0 reactions0 assignees

Open

[Bug] [MySQL CDC] MySQL cdc start by time，TIMESTAMP startup mode cannot recover from checkpoints.

bughelp wanted

apache/seatunnel #10,899 opened May 18, 2026 · Java · 6,897 stars

Why recommendedNo assignee yet · Has a beginner-friendly label

No assignee yetHas a beginner-friendly label

6 comments0 reactions0 assignees

Open

[Umbrella][RAG] Define and implement production-grade Knowledge Sync for SeaTunnel

designfeaturehelp wanted

apache/seatunnel #10,889 opened May 15, 2026 · Java · 6,897 stars

Why recommendedHas a beginner-friendly label

Has a beginner-friendly label

3 comments2 reactions2 assignees

Open

[Feature Request]: Creation of BigQuery clone table via BigQueryIO

P2good first issueionew feature

apache/beam #38,310 opened Apr 28, 2026 · Java · 7,313 stars

Why recommendedHas a beginner-friendly label · Contributing guide available

Has a beginner-friendly labelContributing guide available

4 comments0 reactions2 assignees

Open

[Feature][CDC][DDL] Support comment-related schema change events for CDC schema evolution

apicdcddldiscussionfeaturehelp wanted

apache/seatunnel #10,776 opened Apr 16, 2026 · Java · 6,897 stars

Why recommendedNo assignee yet · Has a beginner-friendly label

No assignee yetHas a beginner-friendly label

5 comments0 reactions0 assignees

Open

[Bug] [Worker] File parameter transfer feature is broken

bughelp wanted

apache/dolphinscheduler #18,166 opened Apr 13, 2026 · Java · 11,659 stars

Why recommendedNo assignee yet · Has a beginner-friendly label

No assignee yetHas a beginner-friendly labelContributing guide available

6 comments0 reactions0 assignees

Open

[Umbrella][Feature][Connector] Support New Connectors — Claim & Tracking

First-time contributorgood first issuehelp wanted

apache/seatunnel #10,753 opened Apr 12, 2026 · Java · 6,897 stars

Why recommendedNo assignee yet · Has a beginner-friendly label

No assignee yetHas a beginner-friendly label

10 comments0 reactions0 assignees

Open

Implement `@formula` support in `Kriging` model

featurehelp wanted

JuliaEarth/GeoStats.jl #573 opened Apr 11, 2026 · Julia · 586 stars

Why recommendedNo assignee yet · Has a beginner-friendly label

No assignee yetHas a beginner-friendly labelContributing guide available

2 comments0 reactions0 assignees

Open

Docs: Clarify Spark branch write precedence over WAP branch

docsgood first issueimprovement

apache/iceberg #15,916 opened Apr 9, 2026 · Java · 5,146 stars

Why recommendedNo assignee yet · Has a beginner-friendly label

No assignee yetHas a beginner-friendly labelContributing guide available

4 comments0 reactions0 assignees

Open

[Feature][CDC] Support db2 cdc connector source

help wanted

apache/seatunnel #10,735 opened Apr 9, 2026 · Java · 6,897 stars

Why recommendedHas a beginner-friendly label

Has a beginner-friendly label

3 comments0 reactions1 assignee

Open

[STIP-24][Feature][Zeta] Support lightweight edge collector clients for remote data collection

designdiscussionfeaturehelp wanted

apache/seatunnel #10,666 opened Mar 28, 2026 · Java · 6,897 stars

Why recommendedHas a beginner-friendly label

Has a beginner-friendly label

28 comments0 reactions1 assignee

Open

[Bug] [Postgres-CDC] Failed to synchronize partitioned tables to MySQL using Postgres-CDC

buggood first issuehelp wanted

apache/seatunnel #10,593 opened Mar 12, 2026 · Java · 6,897 stars

Why recommendedHas a beginner-friendly label

Has a beginner-friendly label

10 comments0 reactions1 assignee

Open

[FR] Native support for predictive ML monitoring metrics data drift, data quality, and model quality to replace external EvidentlyAI dependency

area/evaluationarea/scoringdomain/classical-mldomain/genaienhancementhelp wantedready

mlflow/mlflow #21,603 opened Mar 11, 2026 · Python · 17,127 stars

Why recommendedHas a beginner-friendly label · Contributing guide available

Has a beginner-friendly labelContributing guide available

6 comments0 reactions2 assignees

Open

fix: Java Kernel data skipping uses case-sensitive column matching

buggood first issue

delta-io/delta #6,247 opened Mar 11, 2026 · Scala · 8,807 stars

Why recommendedNo assignee yet · Has a beginner-friendly label

No assignee yetHas a beginner-friendly labelContributing guide available

3 comments0 reactions0 assignees

data-engineeringdata

Open

[Bug] [workflow define] Bug datax wants to use resource file error

backendbughelp wanted

apache/dolphinscheduler #18,389 opened Jul 2, 2026 · Java · 11,659 stars

Why recommendedNo assignee yet · Has a beginner-friendly label

No assignee yetHas a beginner-friendly labelContributing guide available

1 comment0 reactions0 assignees

Open

[Bug] [Connector-V2] [TiDB-CDC] resolvedTs keeps advancing but row change events are silently missed

bughelp wanted

apache/seatunnel #11,013 opened Jun 5, 2026 · Java · 6,897 stars

Why recommendedNo assignee yet · Has a beginner-friendly label

No assignee yetHas a beginner-friendly label

8 comments0 reactions0 assignees

Open

Heatmap with "Normalize Across" x/y will fail when filters reduce the data to a single column/row.

good first issuevalidation:requiredviz:charts:heatmap

apache/superset #40,709 opened Jun 3, 2026 · TypeScript · 72,837 stars

Why recommendedNo assignee yet · Has a beginner-friendly label

No assignee yetHas a beginner-friendly labelContributing guide available

3 comments0 reactions0 assignees

Open

[BUG] sporadic convergence failures in `BoxCoxBiasAdjustedForecaster`

buggood first issuemodule:forecasting

sktime/sktime #10,301 opened May 30, 2026 · Python · 7,162 stars

Why recommendedNo assignee yet · No comments yet

No assignee yetNo comments yetHas a beginner-friendly labelContributing guide available

0 comments0 reactions0 assignees

Open

`remove_orphan_files` scopes `file_list_view` with raw string prefix matching

buggood first issue

apache/iceberg #16,493 opened May 20, 2026 · Java · 5,146 stars

Why recommendedNo assignee yet · Has a beginner-friendly label

No assignee yetHas a beginner-friendly labelContributing guide available

8 comments0 reactions0 assignees

Open

[Feature][Zeta] Support resuming a force-stopped streaming job from the latest successful checkpoint

featurehelp wanted

apache/seatunnel #10,926 opened May 20, 2026 · Java · 6,897 stars

Why recommendedHas a beginner-friendly label

Has a beginner-friendly label

3 comments0 reactions1 assignee

Open

PR-I: Add dedicated knowledge sources

featurehelp wanted

apache/seatunnel #10,921 opened May 19, 2026 · Java · 6,897 stars

Why recommendedNo assignee yet · Has a beginner-friendly label

No assignee yetHas a beginner-friendly label

1 comment0 reactions0 assignees

Open

[Bug] [MySQL CDC] MySQL cdc start by time，TIMESTAMP startup mode cannot recover from checkpoints.

bughelp wanted

apache/seatunnel #10,899 opened May 18, 2026 · Java · 6,897 stars

Why recommendedNo assignee yet · Has a beginner-friendly label

No assignee yetHas a beginner-friendly label

6 comments0 reactions0 assignees

Open

[Umbrella][RAG] Define and implement production-grade Knowledge Sync for SeaTunnel

designfeaturehelp wanted

apache/seatunnel #10,889 opened May 15, 2026 · Java · 6,897 stars

Why recommendedHas a beginner-friendly label

Has a beginner-friendly label

3 comments2 reactions2 assignees

Open

[Feature Request]: Creation of BigQuery clone table via BigQueryIO

P2good first issueionew feature

apache/beam #38,310 opened Apr 28, 2026 · Java · 7,313 stars

Why recommendedHas a beginner-friendly label · Contributing guide available

Has a beginner-friendly labelContributing guide available

4 comments0 reactions2 assignees

Open

[Feature][CDC][DDL] Support comment-related schema change events for CDC schema evolution

apicdcddldiscussionfeaturehelp wanted

apache/seatunnel #10,776 opened Apr 16, 2026 · Java · 6,897 stars

Why recommendedNo assignee yet · Has a beginner-friendly label

No assignee yetHas a beginner-friendly label

5 comments0 reactions0 assignees

Open

[Bug] [Worker] File parameter transfer feature is broken

bughelp wanted

apache/dolphinscheduler #18,166 opened Apr 13, 2026 · Java · 11,659 stars

Why recommendedNo assignee yet · Has a beginner-friendly label

No assignee yetHas a beginner-friendly labelContributing guide available

6 comments0 reactions0 assignees

Open

[Umbrella][Feature][Connector] Support New Connectors — Claim & Tracking

First-time contributorgood first issuehelp wanted

apache/seatunnel #10,753 opened Apr 12, 2026 · Java · 6,897 stars

Why recommendedNo assignee yet · Has a beginner-friendly label

No assignee yetHas a beginner-friendly label

10 comments0 reactions0 assignees

Open

Implement `@formula` support in `Kriging` model

featurehelp wanted

JuliaEarth/GeoStats.jl #573 opened Apr 11, 2026 · Julia · 586 stars

Why recommendedNo assignee yet · Has a beginner-friendly label

No assignee yetHas a beginner-friendly labelContributing guide available

2 comments0 reactions0 assignees

Open

Docs: Clarify Spark branch write precedence over WAP branch

docsgood first issueimprovement

apache/iceberg #15,916 opened Apr 9, 2026 · Java · 5,146 stars

Why recommendedNo assignee yet · Has a beginner-friendly label

No assignee yetHas a beginner-friendly labelContributing guide available

4 comments0 reactions0 assignees

Open

[Feature][CDC] Support db2 cdc connector source

help wanted

apache/seatunnel #10,735 opened Apr 9, 2026 · Java · 6,897 stars

Why recommendedHas a beginner-friendly label

Has a beginner-friendly label

3 comments0 reactions1 assignee

Open

[STIP-24][Feature][Zeta] Support lightweight edge collector clients for remote data collection

designdiscussionfeaturehelp wanted

apache/seatunnel #10,666 opened Mar 28, 2026 · Java · 6,897 stars

Why recommendedHas a beginner-friendly label

Has a beginner-friendly label

28 comments0 reactions1 assignee

Open

[Bug] [Postgres-CDC] Failed to synchronize partitioned tables to MySQL using Postgres-CDC

buggood first issuehelp wanted

apache/seatunnel #10,593 opened Mar 12, 2026 · Java · 6,897 stars

Why recommendedHas a beginner-friendly label

Has a beginner-friendly label

10 comments0 reactions1 assignee

Open

[FR] Native support for predictive ML monitoring metrics data drift, data quality, and model quality to replace external EvidentlyAI dependency

area/evaluationarea/scoringdomain/classical-mldomain/genaienhancementhelp wantedready

mlflow/mlflow #21,603 opened Mar 11, 2026 · Python · 17,127 stars

Why recommendedHas a beginner-friendly label · Contributing guide available

Has a beginner-friendly labelContributing guide available

6 comments0 reactions2 assignees

Open

fix: Java Kernel data skipping uses case-sensitive column matching

buggood first issue

delta-io/delta #6,247 opened Mar 11, 2026 · Scala · 8,807 stars

Why recommendedNo assignee yet · Has a beginner-friendly label

No assignee yetHas a beginner-friendly labelContributing guide available

3 comments0 reactions0 assignees

data-engineeringdata

Open

[Bug] [workflow define] Bug datax wants to use resource file error

backendbughelp wanted

apache/dolphinscheduler #18,389 opened Jul 2, 2026 · Java · 11,659 stars

Why recommendedNo assignee yet · Has a beginner-friendly label

No assignee yetHas a beginner-friendly labelContributing guide available

1 comment0 reactions0 assignees

Open

[Bug] [Connector-V2] [TiDB-CDC] resolvedTs keeps advancing but row change events are silently missed

bughelp wanted

apache/seatunnel #11,013 opened Jun 5, 2026 · Java · 6,897 stars

Why recommendedNo assignee yet · Has a beginner-friendly label

No assignee yetHas a beginner-friendly label

8 comments0 reactions0 assignees

Open

Heatmap with "Normalize Across" x/y will fail when filters reduce the data to a single column/row.

good first issuevalidation:requiredviz:charts:heatmap

apache/superset #40,709 opened Jun 3, 2026 · TypeScript · 72,837 stars

Why recommendedNo assignee yet · Has a beginner-friendly label

No assignee yetHas a beginner-friendly labelContributing guide available

3 comments0 reactions0 assignees

Open

[BUG] sporadic convergence failures in `BoxCoxBiasAdjustedForecaster`

buggood first issuemodule:forecasting

sktime/sktime #10,301 opened May 30, 2026 · Python · 7,162 stars

Why recommendedNo assignee yet · No comments yet

No assignee yetNo comments yetHas a beginner-friendly labelContributing guide available

0 comments0 reactions0 assignees

Open

`remove_orphan_files` scopes `file_list_view` with raw string prefix matching

buggood first issue

apache/iceberg #16,493 opened May 20, 2026 · Java · 5,146 stars

Why recommendedNo assignee yet · Has a beginner-friendly label

No assignee yetHas a beginner-friendly labelContributing guide available

8 comments0 reactions0 assignees

Open

[Feature][Zeta] Support resuming a force-stopped streaming job from the latest successful checkpoint

featurehelp wanted

apache/seatunnel #10,926 opened May 20, 2026 · Java · 6,897 stars

Why recommendedHas a beginner-friendly label

Has a beginner-friendly label

3 comments0 reactions1 assignee

Open

PR-I: Add dedicated knowledge sources

featurehelp wanted

apache/seatunnel #10,921 opened May 19, 2026 · Java · 6,897 stars

Why recommendedNo assignee yet · Has a beginner-friendly label

No assignee yetHas a beginner-friendly label

1 comment0 reactions0 assignees

Open

[Bug] [MySQL CDC] MySQL cdc start by time，TIMESTAMP startup mode cannot recover from checkpoints.

bughelp wanted

apache/seatunnel #10,899 opened May 18, 2026 · Java · 6,897 stars

Why recommendedNo assignee yet · Has a beginner-friendly label

No assignee yetHas a beginner-friendly label

6 comments0 reactions0 assignees

Open

[Umbrella][RAG] Define and implement production-grade Knowledge Sync for SeaTunnel

designfeaturehelp wanted

apache/seatunnel #10,889 opened May 15, 2026 · Java · 6,897 stars

Why recommendedHas a beginner-friendly label

Has a beginner-friendly label

3 comments2 reactions2 assignees

Open

[Feature Request]: Creation of BigQuery clone table via BigQueryIO

P2good first issueionew feature

apache/beam #38,310 opened Apr 28, 2026 · Java · 7,313 stars

Why recommendedHas a beginner-friendly label · Contributing guide available

Has a beginner-friendly labelContributing guide available

4 comments0 reactions2 assignees

Open

[Feature][CDC][DDL] Support comment-related schema change events for CDC schema evolution

apicdcddldiscussionfeaturehelp wanted

apache/seatunnel #10,776 opened Apr 16, 2026 · Java · 6,897 stars

Why recommendedNo assignee yet · Has a beginner-friendly label

No assignee yetHas a beginner-friendly label

5 comments0 reactions0 assignees

Open

[Bug] [Worker] File parameter transfer feature is broken

bughelp wanted

apache/dolphinscheduler #18,166 opened Apr 13, 2026 · Java · 11,659 stars

Why recommendedNo assignee yet · Has a beginner-friendly label

No assignee yetHas a beginner-friendly labelContributing guide available

6 comments0 reactions0 assignees

Open

[Umbrella][Feature][Connector] Support New Connectors — Claim & Tracking

First-time contributorgood first issuehelp wanted

apache/seatunnel #10,753 opened Apr 12, 2026 · Java · 6,897 stars

Why recommendedNo assignee yet · Has a beginner-friendly label

No assignee yetHas a beginner-friendly label

10 comments0 reactions0 assignees

Open

Implement `@formula` support in `Kriging` model

featurehelp wanted

JuliaEarth/GeoStats.jl #573 opened Apr 11, 2026 · Julia · 586 stars

Why recommendedNo assignee yet · Has a beginner-friendly label

No assignee yetHas a beginner-friendly labelContributing guide available

2 comments0 reactions0 assignees

Open

Docs: Clarify Spark branch write precedence over WAP branch

docsgood first issueimprovement

apache/iceberg #15,916 opened Apr 9, 2026 · Java · 5,146 stars

Why recommendedNo assignee yet · Has a beginner-friendly label

No assignee yetHas a beginner-friendly labelContributing guide available

4 comments0 reactions0 assignees

Open

[Feature][CDC] Support db2 cdc connector source

help wanted

apache/seatunnel #10,735 opened Apr 9, 2026 · Java · 6,897 stars

Why recommendedHas a beginner-friendly label

Has a beginner-friendly label

3 comments0 reactions1 assignee

Open

[STIP-24][Feature][Zeta] Support lightweight edge collector clients for remote data collection

designdiscussionfeaturehelp wanted

apache/seatunnel #10,666 opened Mar 28, 2026 · Java · 6,897 stars

Why recommendedHas a beginner-friendly label

Has a beginner-friendly label

28 comments0 reactions1 assignee

Open

[Bug] [Postgres-CDC] Failed to synchronize partitioned tables to MySQL using Postgres-CDC

buggood first issuehelp wanted

apache/seatunnel #10,593 opened Mar 12, 2026 · Java · 6,897 stars

Why recommendedHas a beginner-friendly label

Has a beginner-friendly label

10 comments0 reactions1 assignee

Open

[FR] Native support for predictive ML monitoring metrics data drift, data quality, and model quality to replace external EvidentlyAI dependency

area/evaluationarea/scoringdomain/classical-mldomain/genaienhancementhelp wantedready

mlflow/mlflow #21,603 opened Mar 11, 2026 · Python · 17,127 stars

Why recommendedHas a beginner-friendly label · Contributing guide available

Has a beginner-friendly labelContributing guide available

6 comments0 reactions2 assignees

Open

fix: Java Kernel data skipping uses case-sensitive column matching

buggood first issue

delta-io/delta #6,247 opened Mar 11, 2026 · Scala · 8,807 stars

Why recommendedNo assignee yet · Has a beginner-friendly label

No assignee yetHas a beginner-friendly labelContributing guide available

3 comments0 reactions0 assignees

Data Engineering Good First Issues

Data Engineering Good First Issues

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Data Engineering Good First Issues