Files
windmill/backend
Ruben FiszelandClaude Opus 4.6 b598277fc3 fix: prevent schedule pool connection exhaustion (#7821)
* fix: prevent schedule pool connection exhaustion

Schedules were disabling themselves after upgrading from v1.605.0 to
v1.614.0 due to pool connection deadlock. The root cause was
fetch_authed_from_permissioned_as acquiring a pool connection inside
push() while a transaction already held one, exhausting the pool under
pressure.

Fix: pre-compute Authed before db.begin() for the normal path, and
reuse the transaction connection via fetch_authed_from_permissioned_as_conn
for the on_behalf_of_email path. Peak pool usage drops from 2 to 1 for
all schedule push paths.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

* fix: replace pool exhaustion tests with comprehensive schedule push tests

Replace the 16 pool-specific tests with 19 tests covering all schedule
push code paths: script/flow scheduling, on_behalf_of_email (script and
flow), retry wrapping, duplicate detection, invalid timezone/cron/args,
script/flow not found, paused schedules, clock shift detection, disabled
schedule, path mismatch, push failure disabling schedule, and trigger
metadata.

Also simplify the obo_authed pattern in push_scheduled_job to use a
single match assignment instead of two bindings with .or() chaining.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

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Co-authored-by: Claude Opus 4.6 <noreply@anthropic.com>
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Windmill Backend

This folder holds all backend components, the src/ folder only contains files used to build the "root" binary.

Components

name description
windmill-api The API server, exposing functionality to other components and the frontend
windmill-audit Contains audit functionality, allowing different components to record important actions
windmill-common Common code shared by all crates
windmill-queue Contains job & flow queuing functionality, commonly written to by the API server and read from by workers
windmill-worker The worker. Used to process and execute flows & jobs.
parsers Contains code to parse signatures in different langauges.

Compile sqlx for offline ci

cargo sqlx prepare --workspace -- --bin windmill --features enterprise