A walk that outlives the 90s stop grace is SIGKILLed: its event never
finalizes and its platform lock is held for the 27-min TTL. The 30-min
sweep then errored every stranded event and bumped consecutive_failures,
backing sources off (and blocking backfills) as if the platform failed.
On worker_ready, the process consuming 'download' ends pre-boot
pending/running events as skipped with error_type 'interrupted', leaves
the source untouched so the next tick resumes it, and releases the
serialized platforms' locks.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01LVjrnpQjRgHdvq95rASoiR
celery_signals._queue_for was a hand-kept copy of task_routes and had
drifted:
- backup, admin and library_audit jobs, and backfill_phash, run on
maintenance_long but were recorded as `maintenance`;
- translation and gpu_queue jobs were recorded as `default`, where the
5-minute stall sweep failed healthy 35-minute translation runs.
It now asks the router, cached per task name.
A new guard test checks every registered task's hard time limit against
the stall threshold the sweep would use for it. It also caught these
sweeps, which failed healthy runs mid-flight and are fixed here:
- ml's scheduled sweeps (35 min, previously swept at 25);
- train_heads and apply_head_tags (65 min);
- import_media_file (6 min, previously swept at 5);
- the long lane, which now has its own 45-minute threshold.
UI changes:
- the admin job poller follows a job by celery_task_id, via a new filter
on /runs, instead of by lane;
- the archive re-extract and missing-file repair cards show the long
lane's backlog, where their jobs actually wait;
- the queue table lists maintenance_long.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01LVjrnpQjRgHdvq95rASoiR
celery_signals._queue_for is a hand-maintained mirror of task_routes that
stamps TaskRun.queue in the prerun signal. It was missing the
backend.app.tasks.external. prefix, so external fetches recorded
queue='default' even though celery routes external.* → download and runs
them on the download worker. The dashboard's per-queue filters and the
per-queue recovery-sweep threshold therefore missed them — the same
'queue column lies default' gap the 2026-06-02 audit fixed for
backup/admin/library_audit.
Map external.* → download in _queue_for. Composes with the fetch_external_link
task-name sweep override (#883), which wins by precedence regardless of the
recorded queue. Pinned test asserts the mirror agrees with the actual route.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Five extension-miss findings from the 2026-06-02 audit, where a status
value was added on one side but a downstream consumer didn't pick it up.
- download_service._phase3_persist: explicit branches for
ImportResult.status in ('failed','refreshed'). For 'failed' (archive
probe crash from _import_archive), unlink the source file so the
filesystem scanner doesn't re-import and re-crash on the same
archive forever. 'refreshed' is currently unreachable from the
download path (no deep=True) but matches the importer's documented
contract; treat as 'attached'.
- gallery-dl backfill auto-complete now gates on dl_result.success +
no error_type, not just return_code==0 + files_downloaded==0.
VALIDATION_FAILED exits the subprocess with returncode=0 and
files_downloaded=0 when every file was quarantined, matching the
prior predicate exactly and zeroing the operator's armed backfill
budget on the FIRST quarantine run instead of decrementing.
- attach_in_place archive dispatch now threads artist + source_row
through _import_archive (and _import_media for archive members)
and _supersede. The path-walk fallback (_resolve_artist) is still
used by filesystem-import; the download path now binds
ImageProvenance to the explicit subscription Source instead of
rediscovering by (artist_id, platform).
- Three FE handlers now recognize status:'deferred' from
/api/sources/<id>/check: SubscriptionsTab.onCheck (was toasting
"event #undefined"), SubscriptionsTab.checkAll (was counting
deferred as queued), DownloadEventRow.onRetry (was saying
"re-queued" when nothing was). Pattern matches DownloadsTab.onRetryAll
which already had it.
- celery_signals._queue_for now maps backup/admin/library_audit
prefixes to 'maintenance' (matching task_routes). TaskRun.queue
was returning 'default' for those rows, so per-queue dashboard
filters and per-queue threshold overrides (added in G3) silently
missed them.
bvandeusenandClaude Opus 5.5