Problemsby GlyphApache Airflow upgrades break working setups
11 posts from 10 people10d activeSteady, +1 this week
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Clearing with "run on latest version" permanently removes a mapped task's instances when its input's producer is cleared too
### Apache Airflow version main (3.4.0rc2 behaves the same) ### What happened? Clearing a DAG run's tasks with "run on latest version" when the cleared set includes the task that produces a mapped task's input marks every instance of the mapped task `removed`, and they stay...
Add allowed_tables to LLMSQLQueryOperator to restrict the tables generated SQL may reference
### Description Add an opt-in `allowed_tables` parameter to `LLMSQLQueryOperator` (and `@task.llm_sql`) that rejects generated SQL referencing any table outside the list, reusing the enforcement `SQLToolset(allowed_tables=...)` already has. Today `table_names` only selects which...
TS SDK: a task declared with `queue: undefined` loses the Dag queue and cannot run
### Under which category would you file this issue? Task SDK ### Apache Airflow version 3.4.0b2 with `apache-airflow-task-sdk` 1.4.0b2 and `apache-airflow-ts-sdk` 1.0.0-beta1; the serializer code is the same on main as of October 30, 2026. ### What happened and how to reproduce...
Make the supervisor the only clock for execution_timeout
### Under which category would you file this issue? Task SDK ### Apache Airflow version main ### What happened and how to reproduce it? Since #74869, the supervisor enforces `execution_timeout` for every task, using the value from `TIRunContext`. But it only acts...
apache-airflow-providers-google installs types-protobuf (a mypy stub package) as a runtime dependency
### Under which category would you file this issue? Providers ### Apache Airflow version Any (main / 3.x) ### What happened and how to reproduce it? `apache-airflow-providers-google` declares `types-protobuf`, a PEP 561 stub-only package consumed by mypy, as a runtime...
Cyclic TaskGroup dependencies break Grid/Graph since 3.3.1; proposed parse-time rejection is a breaking change
...3.3.x separately. 3. **What should 3.3.x users do in the meantime?** Currently the only workaround is to restructure the Dag: remove the cycle or flatten the affected TaskGroups. Tasks keep running and stay reachable through the REST API. 4. **Communication:** a `significant`...
Add async support in `apache-airflow-client`
### Description Currently, the `apache-airflow-client` package (generated from the `openapi-generator-cli`) uses the default `urllib3` client, which does not support async operations. The proposed feature is to generate and package `async` client code in the...
Airflow 3.3.2: LocalExecutor workers and DAG Processor child processes hang when OpenTelemetry is enabled
...enabled Description After upgrading from Airflow 3.1.8 to 3.3.2, the environment became unusable when OpenTelemetry was enabled. Two independent symptoms occur: **DAG Processor** DAG files are discovered normally. DAG Processor starts parser children. Child processes never...
Deferrable KubernetesPodOperator marks task SUCCESS without pushing XCom when the pod is gone at re-entry (regression from #66716, provider 10.17.1+)
### Apache Airflow Provider(s) cncf-kubernetes ### Versions of Apache Airflow Providers apache-airflow-providers-cncf-kubernetes==10.19.0 (observed in production). The code path is unchanged in 10.20.0, 10.21.0, 10.21.1 and on `main` as of today. Introduced in 10.17.1 by #66716...
on_task_instance_up_for_retry
...built on `on_task_instance_failed` gets triggered on every transient retry of a flaky task, not just the final terminal failure, which undermines the signal-to-noise of building alerting on this hook. Airflow's listener spec already carves out sub-outcomes this way elsewhere -...
Listener hook can't distinguish a task auto-retrying from a terminal failure
...built on `on_task_instance_failed` gets triggered on every transient retry of a flaky task, not just the final terminal failure, which undermines the signal-to-noise of building alerting on this hook. Airflow's listener spec already carves out sub-outcomes this way elsewhere -...
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About this problem
Evidence
11 posts from 10 people in 1 place, about 1 a week over 64 days. Mostly on apache/airflow. Tools named alongside: GitHub, Kubernetes, Docker, Codex.
Frustration Frustration 1 of 3· Seen on GitHub issues
How it was grouped
Posts that state a pain and match the "breaking-changes" rule about Apache Airflow. First post Sep 1, 2026, latest Nov 3, 2026. Corroborated: 3 or more posts from 2 or more people or places. Method
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Other Apache Airflow problems
Apache Airflow users keep filing bugs
Top post: "Status of testing Providers that were prepared on October 20, 2026", one of 41 posts from 31 people on GitHub issues, Reddit.
Apache Airflow is too complex to run well
34 posts from 32 people on GitHub issues.
Apache Airflow jobs fail silently or break often
13 posts from 12 people on GitHub issues, Stack Overflow.
Debugging Apache Airflow failures is hard
7 posts from 6 people on GitHub issues.
Apache Airflow login, SSO or OAuth breaks
4 posts from 3 people on GitHub issues.
Apache Airflow backfills are slow and risky
4 posts from 4 people on GitHub issues.
Trouble with Apache Airflow retry
Top post: "Task state store writes from `on_retry_callback` fail with 404", one of 3 posts from 3 people on GitHub issues.
Trouble with Apache Airflow dags
Top post: "DagModel.owners falls back to 'airflow' for Dags with only mapped tasks (LazyDeserializedDAG.owner ignores", one of 3 posts from 3 people on GitHub issues.
Trouble with Apache Airflow backend
Top post: "Support [workers] state_store_backend in language SDK tasks", one of 3 posts from 3 people on GitHub issues.
Apache Airflow lock-in makes switching costly
2 posts from 2 people on GitHub issues. Unverified.
Apache Airflow runs out of memory
2 posts from 2 people on GitHub issues. Unverified.
Apache Airflow permissions are confusing and error-prone
2 posts from 2 people on GitHub issues. Unverified.
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