Two follow-ups from live debugging of "work/min never populates" and
"stopped never reached".
1) jobs/min + downloads/min are now computed in the BACKEND on a fixed
cadence (_rate_loop, EWMA) and reported ready-to-show. The rates were
derived client-side from poll deltas with a dt<30s guard — but a
backgrounded/unfocused browser tab throttles its timers to ~1/min, so
every delta exceeded 30s and the guard blanked the rates forever. A
server-side rate is independent of how often the tab polls. Frontend just
displays s.jobs_per_min / s.downloads_per_min. VERSION → .9.
2) ffmpeg video sampling is now killable on Stop. A downloader stuck in a
slow/reconnecting decode (observed: 47s, 230s for one video) couldn't see
the stop signal until ffmpeg returned, so Stop detached still-running
threads and work kept flowing long after — "stopped" that wasn't really
stopped. sample_frames_from_url now runs ffmpeg via Popen and polls a
`should_stop` callback every 0.5s, terminating (then killing) the process
at once on Stop or the per-video timeout. A stop-killed job is handed back
(transient), not failed.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
The Status pill hung on "stopping" forever (operator-flagged 2026-07-01).
Root cause: the backend had no lifecycle state — status() only returned
running/stopped — so the UI FABRICATED "stopping" in JS as `!running &&
active>0`. That pill only cleared when the backend's `active` counter hit 0,
but stop() (a) blocked the HTTP handler on lease-release calls to curator and
(b) left `active>0` whenever a consumer wedged mid-submit/release to an
overloaded curator → "stopping" that never resolved.
Give the backend a real, truthful state it drives itself:
stopped → starting → running → stopping → stopped
- start(): → starting; a downloader flips it to running on its FIRST
successful lease (so "running" means curator is actually answering, not
just "Start was clicked"). If curator's down it honestly stays "starting".
- stop(): → stopping; returns immediately (no handler block). A background
monitor waits for the worker threads to actually exit, releases leases,
then → stopped — bounded by STOPPING_TIMEOUT (20s) so a wedged submit can
NEVER hold the UI in "stopping" again. In-flight work is handed back safely.
- Buttons follow the real state (Start only from stopped; both disabled
through the transition), so you can't fight a transition.
- Log every Start/Stop button press (routes) and every transition (worker),
so the Logs panel shows exactly what each button did.
Frontend now trusts s.state (drops the active>0 hack); VERSION → .8.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
The buffer / on-GPU / downloader counts flip many times a second, so a 3s
status poll only ever samples noise — the tiles looked frozen (same value
twice) or random (wildly different), reading as "the Status section doesn't
update" when the backend was in fact live (operator-flagged 2026-07-01).
Replace the three instantaneous gauge tiles with two derived RATE tiles:
- jobs / min — GPU throughput, from the monotonic `processed` counter
- downloads / min — fetch throughput, from a new monotonic `downloaded`
counter (bumped when a job is decoded into the buffer)
Together they also show pipeline balance (dl/min > j/min ⇒ GPU-bound; the
reverse ⇒ GPU starved). Both are EWMA-smoothed over the poll deltas, clamped
at 0 (agent restart resets the counters), and skip a backgrounded-tab gap.
The still-useful instantaneous state is demoted, not lost: buffer stays as
the occupancy bar; downloaders/consumers/on-GPU move to the sub-line. `waited
out` (transient) gets promoted to a tile.
backend: worker.status() gains `downloaded`; `_bump(downloaded=)`.
frontend: retiled Status + rate math in applyStatus; VERSION → .7.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
The failing "poison" jobs were 800MB+ 4K VR videos: the agent pulled the ENTIRE
file into memory (r.content) just to sample a few frames, which buffered ~1GB in
RAM and — on any slow/contended media store — got cut off mid-download
(ChunkedEncodingError), failed, and re-leased forever. Measured the media read at
~4–6 MB/s (raw off the share, curator out of the path), so no serving-layer tweak
helps; the file simply shouldn't be fully downloaded.
Environment-agnostic fix (works for any deployment, completes even when slow):
- media.sample_frames_from_url(): point ffmpeg straight at curator's /images URL.
It Range-reads only the video index + up to max_frames of content — never the
whole file — and reconnect flags resume a dropped transfer instead of failing.
Generous, env-tunable timeout (FFMPEG_TIMEOUT, default 1200s) = completion over
speed. Removes the bytes-based sample_frames (dead once videos stream).
- worker._download_decode: videos now stream (no fetch_image, no RAM blowup);
stills still download+decode. On an ffmpeg miss, probe curator liveness
(client.is_reachable) → fail the job if curator is up (unprocessable file, stops
the infinite re-lease) vs release if curator is down (transient, survives a
redeploy). Auth header passed so it works whether or not /images is gated.
Build marker 2026-07-01.6. Refs issue #1225.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Ttrj5P7upUTueSfoJcxEqa
"curator unreachable" was printed for every transient error, hiding whether a
single file's transfer stalled (ReadTimeout — curator is up, that stream is slow)
or curator itself is down (ConnectTimeout/ConnectionError) or errored (HTTP 5xx).
Those need completely different fixes, and we've been diagnosing the download
slowness blind.
Add _transient_reason(exc) → a specific label (HTTP <code>, else the exception
class: ReadTimeout / ConnectTimeout / ConnectionError / …) and use it in both
transient paths:
- downloader: "fetch failed job <id> (image <id>, ReadTimeout) — released, backing off"
- consumer: "submit failed job <id> (<reason>) — released, re-lease later"
Now the logs say which failure it actually is (and which image), so we can tell a
slow/stalled transfer apart from an unreachable curator. Build marker 2026-07-01.5.
Refs issue #1225.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Ttrj5P7upUTueSfoJcxEqa
The image library is on a CIFS/SMB share (mounted rsize=4 MiB, actimeo=1), and
Quart's FileBody streams in 8 KiB chunks — so serving one large original was
~19k network round-trips to the storage server, i.e. 30–58s per download
(operator-flagged). That's what starved the GPU agent (constant "curator
unreachable" backoff) AND slowed the browser: every byte is read off CIFS and
streamed through the Python app (no reverse-proxy sendfile), and only 2 hypercorn
workers meant the agent + the browser's thumbnail grid queued behind each other.
In-container fix, no new service:
- Raise FileBody.buffer_size 8 KiB → 4 MiB in create_app, matching the mount's
read size: one round-trip per read, ~500× fewer. buffer_size is the MAX read so
small thumbnails still read in one gulp, and Range/mime/ETag/conditional
handling lives on Response — all preserved. Guarded so a Quart-internal change
can't break boot.
- HYPERCORN_WORKERS default 2 → 4 so concurrent /images requests stop queuing.
Expected: large-file transfers drop from ~40s toward link speed (a few seconds)
for the agent and the browser. See issue #1223.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Ttrj5P7upUTueSfoJcxEqa
The gallery's newest/oldest sort keys off image_record.effective_date =
COALESCE(primary post's post_date, created_at). The primary post is often the
repost/download the file came from, so the grid led with download dates rather
than when content was first posted (operator-flagged).
Add a second materialized sort key, earliest_post_date = MIN(post_date) across
ALL of an image's provenance posts (every post it appears in), else created_at —
the original publish date. Mirrors the effective_date pattern so the sort stays a
forward index scan.
- alembic 0071: add earliest_post_date + index (DESC, id DESC); backfill
created_at baseline then MIN over image_provenance ⋈ post.
- importer: recompute earliest_post_date whenever a dated post is linked (MIN over
the image's provenance, which now includes the just-added row).
- gallery_service: new sorts posted_new / posted_old key off earliest_post_date;
cursor + year/month grouping follow the active column transparently.
- api: accept posted_new|posted_old; DEFAULT is now posted_new so the grid leads
with original publish date. newest/oldest (effective_date) still available.
- frontend: sort dropdown gains "Newest/Oldest post date" (default Newest post
date); existing effective-date sorts relabelled "Newest/Oldest added".
- tests: service test asserts posted_new/posted_old key off earliest_post_date;
frontend default-sort omission test updated.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Ttrj5P7upUTueSfoJcxEqa
Operator hit an outage after the machine slept overnight: the agent showed
"curator unreachable" in a loop while curator's API (lease) was actually fine and
the browser could still load images — just slowly. Root cause is a feedback loop
in the new pipeline: every download streams a full original through curator's
single Python file-serving path, and the autoscaler grows DOWNLOADERS whenever the
buffer is empty. When downloads are merely SLOW/failing, the buffer is empty for
that reason — so the agent piled on more concurrent large-file GETs, saturating
curator's web workers + NFS, which slowed curator (and its browser) further and
produced more failures → more downloaders. Classic congestion collapse.
- Failure-aware autoscaling: if transient download failures rose since the last
decision, SHRINK the downloader pool toward the floor instead of growing — the
empty buffer is caused by failures, not the GPU starving. It ramps back up only
once downloads succeed again.
- DL_MAX 24 → 8: 24 concurrent large-file downloads through one Python serving
path is too many; 8 keeps a fast GPU fed without stampeding curator.
- fetch_image timeout 180 → (10, 60): the read timeout is between-bytes, so a
large-but-flowing download still completes, but a stuck/dead connection fails in
60s instead of hanging a downloader for 3 min and piling up stuck requests.
Build marker 2026-07-01.4.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Ttrj5P7upUTueSfoJcxEqa
Operator wants the Explore "related" rail to span more — the #1188 diversifier
was tuned conservatively. Push all three knobs so it reaches further across
clusters instead of clumping near the anchor:
- MMR lam 0.55 → 0.40 — weight the diversity penalty harder (the main dial).
- candidate pool min(200, max(limit*5, 60)) → min(400, max(limit*8, 100)) — a
wider nearest-cosine pool so MMR has genuinely distinct neighbourhoods to pick
from, not just the near-dupes.
- pHash dup_threshold 6 → 8 — collapse more near-duplicate reposts/clones,
freeing rail slots for distinct picks.
Still deterministic (same set per image, just more spread) and relevance-anchored
via the lam*sim-to-anchor term. Backend-only; no migration.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Ttrj5P7upUTueSfoJcxEqa
Near-static videos are the dominant GPU load: sampled into up to 64 frames, each
re-runs the whole detect→CCIP→SigLIP chain on ~identical content. Add a CPU
perceptual-hash frame dedup upstream of the GPU so the redundant frames are never
processed at all (not just their embeds).
- media.dedupe_frames() + _dhash(): 8×8 difference-hash (64-bit) per frame; greedy
keep — a frame survives only if its hash differs from every kept frame by
>= min_distance bits (Hamming). A static run collapses to one frame; genuinely
distinct scenes all survive. Order + frame_time preserved.
- Called in worker._download_decode right after sample_frames, so it runs in the
decode stage on the downloader thread (CPU) — the GPU consumers only ever see
deduped frames, and buffered video items shrink (less RAM too).
- Env-tunable FRAME_DEDUPE_DISTANCE (default 8; higher keeps more frames for brief
localized changes an 8×8 hash can miss; 0 disables). Logs `video frames N→M`
when it drops any, so video load reduction is visible.
Complements the spatial per-frame crop dedup (2026-07-01.2); this is the temporal
axis. Build marker 2026-07-01.3.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Ttrj5P7upUTueSfoJcxEqa
Figure boxes are already NMS-merged (iou 0.6) and each YOLO detector self-NMSes,
but the combined per-frame crop pile (figure→concept ∪ anatomy component→concept
∪ panel) was embedded with no cross-proposer dedup — so genuine near-duplicates
slipped through (a figure box ≈ an anatomy component on a solo bust; overlapping
booru head classes on one head), embedding the same region twice and burning a
slot against max_regions.
Add detectors.dedupe_crops(): a greedy, high-IoU (default 0.85), kind-aware pass
over the pending (crop, template) list right before embed_batch — drop boxes that
overlap ≥ iou within the same kind, keep the highest score. The high threshold is
deliberate: it collapses only true near-identical boxes while preserving
intentional nested crops across scopes (a whole figure vs a small head component
sit well below it) and distinct kinds (concept vs panel). Env-tunable DEDUPE_IOU
(≥1.0 disables). Runs on CPU before the GPU work, so it cuts both embed cost and
region count. Temporal (cross-frame) dedup deferred. Build marker 2026-07-01.2.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Ttrj5P7upUTueSfoJcxEqa
The agent workload is download-bound (download 400–5462ms vs GPU ~300–600ms),
so the old N-slot serial chain (each slot: lease→download→decode→GPU→submit)
left the fast GPU idle during every download. Rearchitect worker.py into a
producer/consumer pipeline:
downloader pool (autoscaled by BUFFER OCCUPANCY) → bounded queue → 1–2 GPU
consumers (detect+embed→submit)
- Downloaders are I/O-bound → many overlap; the autoscaler now tunes DOWNLOADER
count by buffer fill (empty = GPU starving → add; full = outpacing GPU → add a
2nd consumer if it has util/VRAM headroom and lifts throughput, else trim).
- Bounded buffer (12) = backpressure: a full buffer blocks downloaders, capping
RAM + lease look-ahead. VRAM pressure sheds a consumer immediately.
- Heartbeat thread keeps every held lease alive (buffered jobs wait on the GPU;
curator's 180s TTL would otherwise reclaim them mid-buffer).
- Preserves all resilience: lease exp-backoff, submit-path retry (#169),
release-on-stop, region caps + video early-exit (#171). Stop drains BOTH pools
and releases every held lease at once (single held-set as source of truth).
- Consumers SHARE one embedder + proposers instance (a 2nd consumer adds
concurrent inference, not N× VRAM — bounds the VRAM creep seen with N slots).
- UI reworked for the pipeline: tiles show downloaders · buffer · on-GPU ·
processed · errors, a buffer-occupancy meter, and a consumers/waited-out line;
the dial now tunes downloaders. Build marker 2026-07-01.1.
Also fix the operator-flagged detector warning: yolo11n + the comic-panel model
threw "'Conv' object has no attribute 'bn'" on every image (ultralytics' load-
time Conv+BN fusion on a version-mismatched graph), silently disabling 2 of 3
crop proposers and spamming the log per image. Disable that fusion (unfused
inference is correct, marginally slower) and permanently self-disable a proposer
on the first inference failure instead of re-throwing forever.
Refs milestone 122.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Ttrj5P7upUTueSfoJcxEqa
Image 81602 turned out to be a 156 MB mp4, not a huge still: the agent samples
up to 64 frames × ~32 regions/frame → ~2000 regions (the 413) and 64 frames of
detect+CCIP+embed (the 38s). The MAX_REGIONS backstop (#171) only truncated the
SUBMIT — the GPU work was already spent. Break out of the frame loop once
accumulated regions reach max_regions, so a long video costs ~a few frames of
GPU (~2-3s), not all 64 (~38s). The whole-image 'embed' task is unaffected (it
mean-pools all frames and returns before this loop).
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Ttrj5P7upUTueSfoJcxEqa
Three safety/robustness fixes from the operator's run logs:
- Cap figures per frame (MAX_FIGURES, default 8) like components/panels already
are. Uncapped, a huge/busy image yielded hundreds of figure boxes → hundreds
of per-figure CCIP calls + crops → a 38s job AND a submit too big to accept
(image 81602 looped on 413). This is the acute fix.
- Global per-JOB backstop (MAX_REGIONS, default 128): if total regions still
exceed the cap (long video), keep the highest-scoring and log the drop, so a
submit body can never blow past curator's limit.
- Stale "active" meter: stop() now resets _active to 0 (no slots remain, so the
meter must read 0 at once), and _bump clamps at 0 so a slot finishing after the
reset can't drive it negative.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Ttrj5P7upUTueSfoJcxEqa
Trusted local library, not an upload surface, so a legitimately large image
(90–95M px, operator-flagged) must load. PIL only WARNS at the 89M-px default but
RAISES DecompressionBombError at ~179M px, which would fail those jobs. Set
Image.MAX_IMAGE_PIXELS = None. (The agent works off individual extracted files —
curator's archive_extractor unpacks zip/cbz/rar/7z at import — so this is about
big single images, not archives.)
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Ttrj5P7upUTueSfoJcxEqa
Bump the GPU-agent base image from 12.4.1-cudnn-runtime-ubuntu22.04 (Python 3.10,
CUDA 12.4, early-2024) to 12.9.2-cudnn-runtime-ubuntu24.04:
- Ubuntu 24.04 LTS → Python 3.12 — one modern runtime, no more 3.10.
- CUDA 12.9 + cuDNN 9 — current within the CUDA-12 / cuDNN-9 line that the
default onnxruntime-gpu wheel AND torch cu124 are built against. NOT CUDA 13:
ONNX Runtime's CUDA-13 support is still nascent (separate wheels + open
"Unsupported CUDA version: 13" reports), and torch bundles cu124 anyway. The
GPU (Ampere/Ada, 12 GB) is fine on either — this is a library-alignment call,
not a hardware limit.
- PIP_BREAK_SYSTEM_PACKAGES=1: 24.04 marks system Python externally-managed
(PEP 668); a single-purpose container owns its environment, so global installs
are fine and simplest.
- agent/ruff.toml pinned to py312 (was py310) so CI lints against the real
runtime; from __future__ import annotations stays (PEP 649 lazy annotations
are 3.14, so self-refs still evaluate on 3.12).
CI builds the image but has no GPU — validate on the desktop after pull that it
starts and loads CUDAExecutionProvider (not CPU fallback).
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Ttrj5P7upUTueSfoJcxEqa
The agent container (CUDA base, Python 3.10) crashed on startup with
`NameError: name 'Config' is not defined` — an earlier `ruff --fix` unquoted the
`from_env(cls) -> Config` self-reference, which is safe on CI's Python 3.14
(PEP 649 lazy annotations) but is evaluated at class-definition time on 3.10.
CI lint/compile run on 3.14, so it slipped through.
- config.py: `from __future__ import annotations` so the self-referential
annotation is a string, never evaluated — works on 3.10 and every version.
- agent/ruff.toml: pin the agent to `target-version = "py310"` (its real runtime)
and inherit the root rules. Ruff now flags exactly this class as F821, so CI's
lint lane catches it instead of shipping a broken image. (CI otherwise lints on
3.14, masking 3.10 issues.)
- client.py: submit path now retries in-place. A dedicated session with a
urllib3 Retry (connect/read/status, 0.5s backoff, 500/502/503/504, POST) so a
momentary blip after the GPU work is done doesn't discard it and force a full
re-download + recompute elsewhere. A duplicate submit after a lost response is
a harmless 409 no-op. Lease/fetch keep the plain session + loop-level backoff.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Ttrj5P7upUTueSfoJcxEqa
Addresses operator reports: Stop never finishes, the agent polls curator
constantly, and stale-cached pages get mistaken for a failed deploy.
- Stop is prompt: flip _running BEFORE any lock so /status + worker loops see
"stopped" immediately, and add a stop/shrink checkpoint in _process (after
decode, before the expensive detect+embed) that releases the job and bails —
so a Stop doesn't wait out heavy GPU work.
- Lazy curator polling: the queue snapshot is fetched only while a browser is
actually watching (a /status hit within UI_IDLE_GRACE) and on a 5s cadence,
not a constant background loop. The work loop's own lease/submit is curator's
only visitor otherwise — nothing polls just to poll.
- Build marker: VERSION is embedded in the page and reported on /status; the UI
shows a "reload" banner when they differ, so a browser-cached page can't be
mistaken for "the new image didn't deploy" (complements the no-store header).
CI: the lint lane now also `ruff check`s agent/ and compileall-parses it, so the
GPU agent is linted + syntax-checked before its image builds (build.yml only
`docker build`s it). Fixed the agent's pre-existing UP037/B905 so it passes.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Ttrj5P7upUTueSfoJcxEqa
Instrument the job pipeline so we can see where wall-clock actually goes and
decide — on data, not theory — whether a download/compute split is worth
building. Each stage is timed per job and a rolling breakdown is logged every
30s to the agent console, e.g.:
timing/30s — lease 8ms · download 310ms · decode 40ms · gpu 165ms · submit 70ms | wall/job 585ms (214 jobs)
- lease timed around client.lease() in the slot loop (per batch).
- download = fetch_image; decode = image/frame decode; gpu = detect + CCIP +
batched embed; submit = the results POST. One-time model load is excluded
from the gpu figure.
- Thread-safe accumulator (stage -> [sum, count]) summarised + reset by a small
daemon reporter thread; logs only when there was work.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Ttrj5P7upUTueSfoJcxEqa
The throughput bottleneck was curator-side, not the network. lease() claimed the
lowest-id pending/expired jobs with `... ORDER BY id LIMIT n`, but with only a
plain `status` index Postgres walked the primary key from id=1, skipping the
entire prefix of already done/error rows before reaching pending ones. As `done`
grew (69k+), every lease became an O(done) scan — leasing crawled, the DB
saturated, and even /status (the queue GROUP BY count) stalled the agent.
- Migration 0070 adds two partial indexes over just the live slice: pending rows
indexed by id (hot path), and leased rows by lease_expires_at (crash-recovery
+ orphan sweep). They stay tiny no matter how large the done/error history.
- lease() split into two phases so each uses a partial index: claim pending
first (id-ordered, O(batch)); reclaim expired leases only when pending can't
fill the batch. Same semantics (SKIP LOCKED, attempts++, expired reclaim).
- Model __table_args__ declares the indexes so ORM and schema agree.
- Test: a done-prefix at low ids must not stop the lease reaching pending.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Ttrj5P7upUTueSfoJcxEqa
Operator: the status tiles (state/active/processed) and the Start/Stop buttons
freeze while the GPU meters stay live. Root cause: /status made an INLINE
blocking curator call (queue_status) on every poll, and with curator buried
under a 112k-job backlog that call stalled — freezing the whole status refresh
(the GPU bars survived because /gpu is a lock-free local read). Made worse by the
old util-band autoscaler, which grew workers toward the 32 cap forever because
util plateaus ~50% on this IO-bound load and never hit the 70 grow threshold —
piling load onto curator and the agent process.
- /status is now a pure in-memory read: worker.status() is lock-free, and the
curator queue snapshot is refreshed by a background poller (never inline).
- Autoscaler replaced with a smoothed, throughput-aware climb that SETTLES:
samples util every 2s and EWMA-smooths it (raw util swings 0↔99), then every
~24s grows by one only while each grow keeps lifting smoothed jobs/s; when a
grow stops helping it backs off one and holds, re-probing occasionally. No
runaway, no flopping.
- GPU util bar now shows a smoothed value: the agent's own EWMA (util_smooth,
exposed on /gpu) when running, else smoothed client-side — so it glides
instead of bouncing 0↔99.
- act() aborts a slow Start/Stop POST after 8s so the buttons can't stick; the
now-always-fast /status refresh recovers state regardless.
- Log pane: bound the page to the viewport (height:100vh) so the Logs card
scrolls INTERNALLY instead of overflowing off-screen; cap the ring buffer at
400 lines.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Ttrj5P7upUTueSfoJcxEqa
The control page is a static string served with no cache headers, so after
pulling a fresh agent image the browser kept showing the OLD UI until a hard
refresh (operator-flagged). Add a no-store middleware covering the page and the
status/gpu/logs polls.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Ttrj5P7upUTueSfoJcxEqa
Operator: the buttons fire but the status view doesn't reflect the change. Cause:
act() ignored the POST's own status response and waited on the separate /status
poll (which lags behind the curator queue call). Now:
- act() applies the POST's returned status immediately for instant feedback, and
shows an optimistic "starting"/"stopping" state (pulsing, buttons disabled)
the moment it's clicked.
- A stop that still has in-flight jobs draining shows "stopping" until active
hits 0, then resolves to "stopped" on its own.
- applyStatus() guards the /status-only fields (connection pill + queue) so the
lean action response can't blank them — the Start/Stop path deliberately skips
the slow curator call to stay snappy.
Also de-duplicate GPU reads: read_gpu() now caches (1s TTL) with one probe at a
time, and /status no longer spawns its own nvidia-smi — so the fast /gpu poll +
autoscaler + /status share a single subprocess instead of piling up in the
server thread pool (which was what made clicks feel dead under load).
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Ttrj5P7upUTueSfoJcxEqa
Two operator-reported issues with the GPU agent:
1. Worker count flopped almost every cycle, spiking the GPU. The hill-climb
probed +1, judged it over a too-short noisy throughput window, saw no clear
gain and reverted -1 — every tick. Replace it with a GPU-utilization-band
controller: HOLD while smoothed util sits in a healthy band, grow only on
clear spare capacity (util below the low mark + VRAM headroom), shrink under
saturation or memory pressure. Util is EWMA-smoothed and decisions are spaced
(DECIDE_EVERY samples), so a noisy nvidia-smi reading can't move the pool.
Load stays consistent instead of probe/reverting.
2. GPU util/VRAM bars only updated on manual refresh. They rode the /status
poll, which blocks on the curator queue call (slow when curator is busy), so
the meters froze between refreshes. Give them a dedicated /gpu endpoint
(local nvidia-smi only, no curator round-trip) polled every 1.5s, and drop
the curator queue-status timeout 15s -> 5s so /status itself stays snappy.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Ttrj5P7upUTueSfoJcxEqa
Operator meant the LOG section should fill down the viewport (vertical), not the
whole page going full-width horizontally. Restore the centered column (820px),
make .wrap a full-height flex column, and let the Logs card flex to fill the
remaining height to the bottom (drop the fixed 230px log-pane cap).
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Ttrj5P7upUTueSfoJcxEqa
bvandeusen