bircni 308a6f12ae perf(actions): debounce runner heartbeat writes and throttle task picks (#38281) ...

3 reductions in the DB load generated by many runners polling
`FetchTask`:

**1. Debounce runner heartbeat writes**
Every poll wrote `last_online`, and every `UpdateTask`/`UpdateLog` wrote
`last_active` — while a runner streams logs that is many writes per
second per runner. These are now persisted only when stale enough to
actually affect the active/offline status (`ShouldPersistLastOnline` /
`ShouldPersistLastActive`), using the existing columns.

**2. Throttle concurrent task picks**
A new in-process semaphore (`MAX_CONCURRENT_TASK_PICKS`) bounds how many
runners run the task-assignment transaction at once, so a fleet polling
together cannot stampede the query. Throttled polls retry on their next
poll without advancing the runner's tasks version.

**3. Paginate the task-pick query**
`CreateTaskForRunner` previously loaded every waiting job in the
runner's scope into memory on each poll (no `LIMIT`). Now it pages
through the waiting backlog oldest-first with `LIMIT`, claiming the
first label-matching job.

---------

Co-authored-by: Zettat123 <zettat123@gmail.com>

2026-07-07 19:16:20 +00:00

..

actions

perf(actions): debounce runner heartbeat writes and throttle task picks (#38281)

2026-07-07 19:16:20 +00:00

packages

fix(packages): validate debian distribution and component names (#38116)

2026-06-29 06:50:22 +00:00

v1

chore: upgrade go-swagger to v0.35.0 and enforce zero swagger warnings (#38299)

2026-07-01 21:07:34 +00:00