librephotos: Infinite loop in backend?

🐛 Bug Report

• I am including my log files in zip format.
• I have looked for similar issues among all the former issues including closed ones.

What Operating system and version is LibrePhotos running on:

Debian, last Docker release.

What architecture is LibrePhotos running on:

x64

How is LibrePhotos installed:

Docker

If running via Docker or Kubernets please list version including docker-compose:

# DO NOT EDIT
# The .env file has everything you need to edit.
# Run options:
# 1. Use prebuilt images (preferred method):
#   run cmd: docker-compose up -d
# 2. Build images on your own machine:
#   build cmd: COMPOSE_DOCKER_CLI_BUILD=1 DOCKER_BUILDKIT=1 docker-compose build
#   run cmd: docker-compose up -d

version: '3.3'
services:
proxy:
  image: reallibrephotos/librephotos-proxy:${tag}
  restart: unless-stopped
  volumes:
    - ${myPhotos}:/data
    - ${proMedia}:/protected_media
  ports:
    - ${httpPort}:80
  depends_on:
    - backend
    - frontend

db:
  image: postgres:13
  restart: unless-stopped
  environment:
    - POSTGRES_USER=${dbUser}
    - POSTGRES_PASSWORD=${dbPass}
    - POSTGRES_DB=${dbName}
  volumes:
    - ${dbLocation}:/var/lib/postgresql/data
  command: postgres -c fsync=off -c synchronous_commit=off -c full_page_writes=off -c random_page_cost=1.0

frontend:
  image: reallibrephotos/librephotos-frontend:${tag}
  restart: always
  depends_on:
    - backend

backend:
  image: reallibrephotos/librephotos:${tag}
  restart: unless-stopped
  volumes:
    - ${myPhotos}:/data:ro
    - ${proMedia}:/protected_media
    - ${logLocation}:/logs
    - ${cachedir}:/root/.cache

  environment:
    - SECRET_KEY=${shhhhKey}
    - BACKEND_HOST=backend
    - ADMIN_EMAIL=${adminEmail}
    - ADMIN_USERNAME=${userName}
    - ADMIN_PASSWORD=${userPass}
    - DB_BACKEND=postgresql
    - DB_NAME=${dbName}
    - DB_USER=${dbUser}
    - DB_PASS=${dbPass}
    - DB_HOST=db
    - DB_PORT=5432
    - REDIS_HOST=redis
    - REDIS_PORT=6379
    - MAPBOX_API_KEY=${mapApiKey}
    - TIME_ZONE=${timeZone}
    - WEB_CONCURRENCY=${gunniWorkers}
    - SKIP_PATTERNS=${skipPatterns}
    - DEBUG=0

  # Wait for Postgres
  depends_on:
    - db

redis:
  image: redis:6
  restart: unless-stopped

The difference with default conf is - ${myPhotos}:/data:ro, my filed are mounted on a read-only mount point.

Are you running LibrePhotos on a virtual machine if so please list:

How is you picture library mounted on the host (or in the virtual machine):

Local file system (ext4)

Description of issue:

cd /var/librephotos/ ; docker-compose logs --tail 20 backend
Attaching to librephotos_backend_1
backend_1   | [2021-03-31 19:26:58 +0000] [313] [INFO] Booting worker with pid: 313
backend_1   | [2021-03-31 19:27:03 +0000] [320] [INFO] Booting worker with pid: 320
backend_1   | [2021-03-31 19:27:06 +0000] [323] [INFO] Booting worker with pid: 323
backend_1   | [2021-03-31 19:27:11 +0000] [328] [INFO] Booting worker with pid: 328
backend_1   | [2021-03-31 19:27:15 +0000] [333] [INFO] Booting worker with pid: 333
backend_1   | [2021-03-31 19:27:19 +0000] [338] [INFO] Booting worker with pid: 338
backend_1   | [2021-03-31 19:27:23 +0000] [343] [INFO] Booting worker with pid: 343
backend_1   | [2021-03-31 19:27:27 +0000] [348] [INFO] Booting worker with pid: 348
backend_1   | [2021-03-31 19:27:30 +0000] [353] [INFO] Booting worker with pid: 353
backend_1   | [2021-03-31 19:27:35 +0000] [358] [INFO] Booting worker with pid: 358
backend_1   | [2021-03-31 19:27:39 +0000] [363] [INFO] Booting worker with pid: 363
backend_1   | [2021-03-31 19:27:43 +0000] [368] [INFO] Booting worker with pid: 368
backend_1   | [2021-03-31 19:27:46 +0000] [373] [INFO] Booting worker with pid: 373
backend_1   | [2021-03-31 19:27:51 +0000] [378] [INFO] Booting worker with pid: 378
backend_1   | [2021-03-31 19:27:55 +0000] [383] [INFO] Booting worker with pid: 383
backend_1   | [2021-03-31 19:27:59 +0000] [388] [INFO] Booting worker with pid: 388
backend_1   | [2021-03-31 19:28:02 +0000] [393] [INFO] Booting worker with pid: 393
backend_1   | [2021-03-31 19:28:06 +0000] [398] [INFO] Booting worker with pid: 398
backend_1   | [2021-03-31 19:28:11 +0000] [403] [INFO] Booting worker with pid: 403
backend_1   | [2021-03-31 19:28:14 +0000] [408] [INFO] Booting worker with pid: 408

cat …/librephotos_logs/gunicorn_django.log
[2021-03-31 19:27:19 +0000] [338] [INFO] Booting worker with pid: 338
[2021-03-31 19:27:23 +0000] [343] [INFO] Booting worker with pid: 343
[2021-03-31 19:27:27 +0000] [348] [INFO] Booting worker with pid: 348
[2021-03-31 19:27:30 +0000] [353] [INFO] Booting worker with pid: 353
[2021-03-31 19:27:35 +0000] [358] [INFO] Booting worker with pid: 358
[2021-03-31 19:27:39 +0000] [363] [INFO] Booting worker with pid: 363
[2021-03-31 19:27:43 +0000] [368] [INFO] Booting worker with pid: 368
[2021-03-31 19:27:46 +0000] [373] [INFO] Booting worker with pid: 373
[2021-03-31 19:27:51 +0000] [378] [INFO] Booting worker with pid: 378
[2021-03-31 19:27:55 +0000] [383] [INFO] Booting worker with pid: 383
[2021-03-31 19:27:59 +0000] [388] [INFO] Booting worker with pid: 388
[2021-03-31 19:28:02 +0000] [393] [INFO] Booting worker with pid: 393
[2021-03-31 19:28:06 +0000] [398] [INFO] Booting worker with pid: 398
[2021-03-31 19:28:11 +0000] [403] [INFO] Booting worker with pid: 403
[2021-03-31 19:28:14 +0000] [408] [INFO] Booting worker with pid: 408
[2021-03-31 19:28:18 +0000] [413] [INFO] Booting worker with pid: 413
[2021-03-31 19:28:22 +0000] [418] [INFO] Booting worker with pid: 418
[2021-03-31 19:28:26 +0000] [423] [INFO] Booting worker with pid: 423
[2021-03-31 19:28:30 +0000] [428] [INFO] Booting worker with pid: 428
[2021-03-31 19:28:34 +0000] [433] [INFO] Booting worker with pid: 433
[2021-03-31 19:28:38 +0000] [438] [INFO] Booting worker with pid: 438
[2021-03-31 19:28:42 +0000] [443] [INFO] Booting worker with pid: 443
[2021-03-31 19:28:45 +0000] [448] [INFO] Booting worker with pid: 448
[2021-03-31 19:28:49 +0000] [453] [INFO] Booting worker with pid: 453
[2021-03-31 19:28:54 +0000] [458] [INFO] Booting worker with pid: 458
[2021-03-31 19:28:58 +0000] [463] [INFO] Booting worker with pid: 463
[2021-03-31 19:29:02 +0000] [468] [INFO] Booting worker with pid: 468
[2021-03-31 19:29:05 +0000] [473] [INFO] Booting worker with pid: 473
[2021-03-31 19:29:10 +0000] [480] [INFO] Booting worker with pid: 480
[2021-03-31 19:29:13 +0000] [483] [INFO] Booting worker with pid: 483
[2021-03-31 19:29:17 +0000] [488] [INFO] Booting worker with pid: 488
[2021-03-31 19:29:21 +0000] [493] [INFO] Booting worker with pid: 493
[2021-03-31 19:29:25 +0000] [498] [INFO] Booting worker with pid: 498
[2021-03-31 19:29:29 +0000] [503] [INFO] Booting worker with pid: 503
[2021-03-31 19:29:33 +0000] [508] [INFO] Booting worker with pid: 508
[2021-03-31 19:29:37 +0000] [513] [INFO] Booting worker with pid: 513
[2021-03-31 19:29:41 +0000] [518] [INFO] Booting worker with pid: 518
[2021-03-31 19:29:45 +0000] [523] [INFO] Booting worker with pid: 523
[2021-03-31 19:29:49 +0000] [528] [INFO] Booting worker with pid: 528
[2021-03-31 19:29:52 +0000] [533] [INFO] Booting worker with pid: 533
[2021-03-31 19:29:56 +0000] [538] [INFO] Booting worker with pid: 538
[2021-03-31 19:30:00 +0000] [543] [INFO] Booting worker with pid: 543
[2021-03-31 19:30:04 +0000] [548] [INFO] Booting worker with pid: 548
[2021-03-31 19:30:09 +0000] [553] [INFO] Booting worker with pid: 553
[2021-03-31 19:30:13 +0000] [558] [INFO] Booting worker with pid: 558
[2021-03-31 19:30:17 +0000] [563] [INFO] Booting worker with pid: 563
[2021-03-31 19:30:22 +0000] [568] [INFO] Booting worker with pid: 568
[2021-03-31 19:30:27 +0000] [573] [INFO] Booting worker with pid: 573
[2021-03-31 19:30:33 +0000] [580] [INFO] Booting worker with pid: 580
[2021-03-31 19:30:35 +0000] [583] [INFO] Booting worker with pid: 583

My CPU has too much usage, I have to stop LibrePhotos.

How can we reproduce it:

I don’t know.

Additional Information: