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Prefect users keep filing bugs

Data engineering11 posts from 9 people9d active+44 posts in the last 7 days, 2 the 7 days before (rising)

Posts per day

Posts per day11 posts, Aug 27 to Sep 25

The posts behind it

11, newest first
PostDate
retry_async_fn(base_delay=0) raises ZeroDivisionError from the backoff helper instead of retrying### Bug summary `prefect._internal.retries.exponential_backoff_with_jitter()` hands a zero average interval to `clamped_poisson_interval()`, which divides by it: `clamped_poisson_interval()` reaches `exponential_cdf()`, whose first line is `ld = 1 / average_interval`...PrefectHQ/prefectLesereingrapeSep 25today
Cached task runs wait for a tag concurrency slot before the cache lookup### Bug summary When a task has a tag with a concurrency limit, the engine takes the tag's slot before it checks the cache. A task run that would come back Cached still waits for a slot behind the live runs holding the limit. Expected: returned Cached after 0.xxs Actual: cache...PrefectHQ/prefectDeltaEvoSep 232 days ago
Releasing a concurrency slot doesn't wake waiters in the same process, so the slot sits idle until their Retry-After expires### Bug summary When a caller releases a concurrency slot, nothing tells callers waiting on the same limit in the same process. They keep sleeping until their Retry-After expires and only then ask again, so the slot sits unused in the meantime, even though the process just...PrefectHQ/prefectDeltaEvoSep 232 days ago
V2 UI feedback: Missing feature: Figure render in the artefact### UI switch feedback - From UI: V2 UI - To UI: V1 UI - Current path: /dashboard - Reason: Missing feature ### Additional notes I regularly use figures encoded in Markdown: V1 renders them fine. V2 only shows the label of the figure.PrefectHQ/prefectkripnerlSep 196 days ago
Format V2 deployment Created and Updated timestamps for readability### Bug summary The V2 deployment detail page displays Created and Updated as raw API timestamp strings, such as `2026-09-14T14:57:45.535230Z`. These long values are harder to scan than the formatted dates shown in V1 and take up unnecessary space in the metadata sidebar. ###...PrefectHQ/prefectdesertaxleSep 1411 days ago
Fix V2 run-list wrapping and toolbar overflow at constrained widths### Bug summary V2's deployment **Runs** tab does not fit its available content width at a 1280 × 720 viewport. The run count and filters share one line, and the filters extend into the right metadata column. Run-card metadata also breaks within labels such as `0 Parameters` and...PrefectHQ/prefectdesertaxleSep 1411 days ago
Add a Prefect worker for Nebius Serverless Jobs### Describe the current behavior Running Prefect flows on Nebius Serverless Jobs currently requires custom integration code to submit containers, monitor jobs, collect logs and propagate cancellation. Users must also handle ambiguous submission responses and reconnect to jobs...PrefectHQ/prefectSalikovAlexSep 112 weeks ago
[docs] Improve AutoEnum class documentation in API referenceCurrently, all Enum classes in Prefect that inherit from AutoEnum look exactly like this: > **Methods:** > > #### `auto` > > > > Exposes `enum.auto()` to avoid requiring a second import to use `AutoEnum` This makes it difficult for someone to quickly locate the _actual_ enum...PrefectHQ/prefectbdalpeSep 92 weeks ago
V2 UI feedback: Missing feature - Filter by tags search box...switch feedback - From UI: V2 UI - To UI: V1 UI - Current path: /deployments - Reason: Missing feature ### Additional notes In Deployments screen, Filter by tags search bar is not suggesting existing tags. It is just free form input box, and user have to spell exactly name of...PrefectHQ/prefectEnsoPiotrKSep 43 weeks ago
Automatically clean up offline workers### Describe the current behavior When running multiple Prefect worker replicas on Kubernetes, each pod gets a unique worker name. During rolling deployments, old workers become OFFLINE, but their records stay forever. We can't use a shared stable name because the replicas need...PrefectHQ/prefectBarboraAniAug 313 weeks ago
{{ event.url }} renders empty in automation Jinja templates despite #19851 fix### Bug summary Summary {{ event.url }} renders as an empty string in automation action Jinja templates on Prefect Cloud. The fix in #19851 (merged Dec 19, 2025) added a url property to the server-side ReceivedEvent, but 8 months later the property still evaluates to empty when...PrefectHQ/prefectfredrikhgrellandAug 274 weeks ago

Companies and products named

Company or productPosts naming it
Prefect11
GitHub2
Google Cloud1
Nebius1
Kubernetes1
About this problem

Evidence

11 posts from 9 people in 1 place, about 2 a week over 30 days. Mostly on PrefectHQ/prefect. Tools named alongside: GitHub, Google Cloud, Nebius, Kubernetes.

Frustration Frustration 0 of 3· Seen on GitHub issues

How it was grouped

Posts about Prefect that state a pain but match no known issue yet. First post Aug 27, 2026, latest Sep 25, 2026. Corroborated: 3 or more posts from 2 or more people or places. Method

History

  • 2026-09-25 Statement: Prefect users keep asking for help to Prefect users keep filing bugs
  • 2026-09-25 Added: Prefect users keep asking for help (11 posts)

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