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Synchronous and asynchronous compatibility within Prefect
#15008 · cicdw opened on Aug 19, 2024
4
Add pending-claim self-healing for flow runs stuck in PENDING
#22664 · desertaxle opened on Jul 29, 2026

prefect-redis: async tasks with SERIALIZABLE isolation never release their RedisLockManager lock
PrefectHQ/prefect#23653 · opened on Oct 29, 2026
Kubernetes worker API-key Secret creation fails during concurrent submissions
PrefectHQ/prefect#23647 · opened on Oct 28, 2026
Work queues stay Not Ready for ~5 minutes after Redis recovers, even though workers are polling
PrefectHQ/prefect#23643 · opened on Oct 27, 2026
V2 UI feedback: Navigation or usability
PrefectHQ/prefect#23638 · opened on Oct 27, 2026
Flow.serialize_parameters crashes on errors other than TypeError/ValueError/RecursionError from jsonable_encoder
PrefectHQ/prefect#23629 · opened on Oct 27, 2026
PrefectDistributedFuture.result() hangs after its task run completes if the task run waiter lost its events subscription
PrefectHQ/prefect#23627 · opened on Oct 27, 2026
POST /flow_runs/{id}/resume returns 500 when run_input contains an integer outside the 64-bit range
PrefectHQ/prefect#23616 · opened on Oct 27, 2026
Flow run stored with a deeply nested, lone-surrogate or NaN-label value makes /flow_runs/filter return 500 for every client
PrefectHQ/prefect#23614 · opened on Oct 27, 2026
Invalid values in request bodies return 503 (retried by the client) or 500 instead of 422
PrefectHQ/prefect#23615 · opened on Oct 27, 2026
Async generator task retries during early close when finalizer fails
PrefectHQ/prefect#23592 · opened on Oct 26, 2026
Reuse an in-flight flow run when run_deployment is called with an idempotency key
PrefectHQ/prefect#23591 · opened on Oct 26, 2026
1
Flow runs cancelled before they start keep their infrastructure running and can still run
PrefectHQ/prefect#23589 · opened on Oct 26, 2026
1
Import prefect opens .env 216 times, which stalls on a 1Password Environments (FIFO) .env
PrefectHQ/prefect#23532 · opened on Oct 23, 2026
V2 UI feedback: Bug or incorrect behavior
PrefectHQ/prefect#23522 · opened on Oct 22, 2026
1
Perpetual Jobs Using Prefect
PrefectHQ/prefect#23520 · opened on Oct 22, 2026
CompoundTrigger should support for_each to group child firings by a shared label
PrefectHQ/prefect#23510 · opened on Oct 21, 2026
EventTrigger with threshold > 1 should expose all contributing events in {{ events }}
PrefectHQ/prefect#23469 · opened on Oct 20, 2026
2
Flow run graph polls graph-v2 every second for the whole run, rebuilding the full graph each time
PrefectHQ/prefect#23430 · opened on Oct 17, 2026
1
Custom worker for Azure Container Apps dynamic sessions
PrefectHQ/prefect#23410 · opened on Oct 14, 2026
Azure Container Instances Worker Guide - a remark on the documentation
PrefectHQ/prefect#23406 · opened on Oct 13, 2026
1
Flow rescheduled after SIGTERM skips previously triggered pause_flow_run calls
PrefectHQ/prefect#23398 · opened on Oct 12, 2026
prefect flow-run execute exits 0 when the flow run crashes and the Crashed report fails, leaving the run Running forever
PrefectHQ/prefect#23392 · opened on Oct 12, 2026
1
Opt-in request security middleware for the self-hosted server (rate limiting, IP lists, payload screening)
PrefectHQ/prefect#23378 · opened on Oct 10, 2026
Breaking out of an async generator flow marks the run Failed after Completed
PrefectHQ/prefect#23373 · opened on Oct 10, 2026
prefect-dbt: plans for dbt v2 (Fusion) support?
PrefectHQ/prefect#23358 · opened on Oct 9, 2026
4

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Issues

Issues

prefect-redis: async tasks with SERIALIZABLE isolation never release their RedisLockManager lock

Kubernetes worker API-key Secret creation fails during concurrent submissions

Work queues stay Not Ready for ~5 minutes after Redis recovers, even though workers are polling

V2 UI feedback: Navigation or usability

`Flow.serialize_parameters` crashes on errors other than `TypeError`/`ValueError`/`RecursionError` from `jsonable_encoder`

PrefectDistributedFuture.result() hangs after its task run completes if the task run waiter lost its events subscription

`POST /flow_runs/{id}/resume` returns 500 when `run_input` contains an integer outside the 64-bit range

Flow run stored with a deeply nested, lone-surrogate or NaN-label value makes `/flow_runs/filter` return 500 for every client

Invalid values in request bodies return 503 (retried by the client) or 500 instead of 422

Async generator task retries during early close when finalizer fails

Reuse an in-flight flow run when `run_deployment` is called with an idempotency key

Flow runs cancelled before they start keep their infrastructure running and can still run

Import prefect opens .env 216 times, which stalls on a 1Password Environments (FIFO) .env

V2 UI feedback: Bug or incorrect behavior

Perpetual Jobs Using Prefect

CompoundTrigger should support for_each to group child firings by a shared label

EventTrigger with threshold > 1 should expose all contributing events in {{ events }}

Flow run graph polls graph-v2 every second for the whole run, rebuilding the full graph each time

Custom worker for Azure Container Apps dynamic sessions

Azure Container Instances Worker Guide - a remark on the documentation

Flow rescheduled after SIGTERM skips previously triggered pause_flow_run calls

prefect flow-run execute exits 0 when the flow run crashes and the Crashed report fails, leaving the run Running forever

Opt-in request security middleware for the self-hosted server (rate limiting, IP lists, payload screening)

Breaking out of an async generator flow marks the run Failed after Completed

prefect-dbt: plans for dbt v2 (Fusion) support?