New install with the Error 500 when uploading PDF

[geomule]

Hi, after a day messing around with the bare metal install (Debian Buster machine), I finally got paperless-webserver and paperless-scheduler going (not the case with paperless-consumer which I'll post elsewhere).

When I log in as superuser paperless, my attempt to load my first PDF is a failure with error 500.

Redis is running and followed the procedure on this page to make sure it was working:

user@server:/opt/paperless-ng$ sudo netstat -plten |grep "redis"
tcp        0      0 127.0.0.1:6379          0.0.0.0:*               LISTEN      120        6854982    4495/redis-server 1 
tcp6       0      0 ::1:6379                :::*                    LISTEN      120        6854983    4495/redis-server 1 

I'm trying to debug what the issue is but there is no log file in /opt/paperless-ng/data/log. In fact, if you click on "logs" on the interface, its empty. If I try to set the PAPERLESS_DEBUG option to true in paperless.conf, the paperless-webserver fails to start:

user@server:~$ sudo systemctl status paperless-webserver 
● paperless-webserver.service - Paperless webserver
   Loaded: loaded (/etc/systemd/system/paperless-webserver.service; enabled; vendor preset: enabled)
   Active: failed (Result: exit-code) since Sun 2021-03-14 01:05:31 GMT; 6s ago
  Process: 22393 ExecStart=/opt/paperless-ng/.local/bin/gunicorn -c /opt/paperless-ng/gunicorn.conf.py paperless.asgi:application (code=exited, status=3)
 Main PID: 22393 (code=exited, status=3)

mar 14 01:05:30 server gunicorn[22393]: [2021-03-14 01:05:30 +0000] [22393] [INFO] Starting gunicorn 20.0.4
mar 14 01:05:31 server gunicorn[22393]: [2021-03-14 01:05:31 +0000] [22393] [INFO] Listening at: http://0.0.0.0:8000 (22393)
mar 14 01:05:31 server gunicorn[22393]: [2021-03-14 01:05:31 +0000] [22393] [INFO] Using worker: uvicorn.workers.UvicornWorker
mar 14 01:05:31 server gunicorn[22393]: [2021-03-14 01:05:31 +0000] [22393] [INFO] Server is ready. Spawning workers
mar 14 01:05:31 server gunicorn[22393]: [2021-03-14 01:05:31 +0000] [22396] [INFO] Booting worker with pid: 22396
mar 14 01:05:31 server gunicorn[22393]: [2021-03-14 01:05:31 +0000] [22397] [INFO] Booting worker with pid: 22397
mar 14 01:05:31 server gunicorn[22393]: [2021-03-14 01:05:31 +0000] [22393] [INFO] Shutting down: Master
mar 14 01:05:31 server gunicorn[22393]: [2021-03-14 01:05:31 +0000] [22393] [INFO] Reason: Worker failed to boot.
mar 14 01:05:31 server systemd[1]: paperless-webserver.service: Main process exited, code=exited, status=3/NOTIMPLEMENTED
mar 14 01:05:31 server systemd[1]: paperless-webserver.service: Failed with result 'exit-code'.

My paperless.conf file is below. Any thoughts on why I'm not able to see a log and why I get the 500 errors?

# Have a look at the docs for documentation.
# https://paperless-ng.readthedocs.io/en/latest/configuration.html

# Debug. Only enable this for development.

#PAPERLESS_DEBUG=true

# Required services

PAPERLESS_REDIS=redis://127.0.0.1:6379
PAPERLESS_DBHOST=localhost
PAPERLESS_DBPORT=5432
PAPERLESS_DBNAME=paperless_ng
PAPERLESS_DBUSER=paperless_ng
PAPERLESS_DBPASS=MYPASSWORD
#PAPERLESS_DBSSLMODE=prefer

# Paths and folders

PAPERLESS_CONSUMPTION_DIR=/opt/paperless-ng/consume
PAPERLESS_DATA_DIR=/opt/paperless-ng/data
PAPERLESS_MEDIA_ROOT=/opt/paperless-ng/media
PAPERLESS_STATICDIR=/opt/paperless-ng/static
#PAPERLESS_FILENAME_FORMAT=

# Security and hosting

PAPERLESS_SECRET_KEY=MYKEY
#PAPERLESS_ALLOWED_HOSTS=example.com,www.example.com
#PAPERLESS_CORS_ALLOWED_HOSTS=http://example.com,http://localhost:8000
#PAPERLESS_FORCE_SCRIPT_NAME=
#PAPERLESS_STATIC_URL=/static/
#PAPERLESS_AUTO_LOGIN_USERNAME=
#PAPERLESS_COOKIE_PREFIX=
#PAPERLESS_ENABLE_HTTP_REMOTE_USER=false

# OCR settings

PAPERLESS_OCR_LANGUAGE=eng+ita
#PAPERLESS_OCR_MODE=skip
#PAPERLESS_OCR_OUTPUT_TYPE=pdfa
#PAPERLESS_OCR_PAGES=1
#PAPERLESS_OCR_IMAGE_DPI=300
PAPERLESS_OCR_CLEAN=clean
#PAPERLESS_OCR_DESKEW=true
#PAPERLESS_OCR_ROTATE_PAGES=true
#PAPERLESS_OCR_ROTATE_PAGES_THRESHOLD=12.0
#PAPERLESS_OCR_USER_ARGS={}
#PAPERLESS_CONVERT_MEMORY_LIMIT=0
#PAPERLESS_CONVERT_TMPDIR=/var/tmp/paperless

# Software tweaks

#PAPERLESS_TASK_WORKERS=1
#PAPERLESS_THREADS_PER_WORKER=1
#PAPERLESS_TIME_ZONE=UTC
#PAPERLESS_CONSUMER_POLLING=10
#PAPERLESS_CONSUMER_DELETE_DUPLICATES=false
#PAPERLESS_CONSUMER_RECURSIVE=false
#PAPERLESS_CONSUMER_SUBDIRS_AS_TAGS=false
#PAPERLESS_OPTIMIZE_THUMBNAILS=true
#PAPERLESS_POST_CONSUME_SCRIPT=/path/to/an/arbitrary/script.sh
#PAPERLESS_FILENAME_DATE_ORDER=YMD
#PAPERLESS_FILENAME_PARSE_TRANSFORMS=[]
#PAPERLESS_THUMBNAIL_FONT_NAME=
#PAPERLESS_IGNORE_DATES=

# Tika settings

#PAPERLESS_TIKA_ENABLED=false
#PAPERLESS_TIKA_ENDPOINT=http://localhost:9998
#PAPERLESS_TIKA_GOTENBERG_ENDPOINT=http://localhost:3000

# Binaries

PAPERLESS_CONVERT_BINARY=/usr/bin/convert
PAPERLESS_GS_BINARY=/usr/bin/gs
PAPERLESS_OPTIPNG_BINARY=/usr/bin/optipng

[geomule]

Ok, I've answered my own question. I had followed the suggestion in the link in the post above to secure Redis by adding a password. I disabled the password/authentication on Redis and all of a sudden documents can upload and the log has appeared.

This clearly suggests to me that you cannot have authentication enabled in Redis for Paperless to work. Does this matter? I guess it only matters if you have your server open to the internet, which i don't luckily.

[krikkert]

You're instructing Paperless to connect to a passwordless Redis instance on this line in paperless.conf:

PAPERLESS_REDIS=redis://127.0.0.1:6379

A password-protected Redis instance would have an address looking something like this:

PAPERLESS_REDIS=redis://:password@redishost:redisport