langflow icon indicating copy to clipboard operation
langflow copied to clipboard
verified publisher icon langflow-ai

Deployment to Render fail

Open Gluepower opened this issue 1 year ago • 3 comments

Bug Description

==> Deploying... [08/01/24 18:52:06] INFO 2024-08-01 18:52:06 - INFO - main - main.py:228 Setting up app with static files
directory None
[08/01/24 18:52:07] INFO 2024-08-01 18:52:07 - INFO - init.py:1762 init - Starting gunicorn
22.0.0
INFO 2024-08-01 18:52:07 - INFO - init.py:1762 init - Listening at:
http://0.0.0.0:7860/ (67)
INFO 2024-08-01 18:52:07 - INFO - init.py:1762 init - Using worker:
langflow.server.LangflowUvicornWor
ker
INFO 2024-08-01 18:52:07 - INFO - init.py:1762 init - Booting worker with
pid: 68
INFO 2024-08-01 18:52:07 - INFO - init.py:1762 init - Started server process
[68]
INFO 2024-08-01 18:52:07 - INFO - init.py:1762 init - Waiting for application
startup.
Starting Langflow v1.0.14... INFO 2024-08-01 18:52:07 - INFO - service.py:77 service - sqlite connect listener,
setting pragmas
INFO 2024-08-01 18:52:07 - INFO - service.py:195 service - Alembic already
initialized
INFO 2024-08-01 18:52:07 - INFO - service.py:197 service - Running DB migrations in
/app/.venv/lib/python3.12/site-packa
ges/langflow/alembic
[08/01/24 18:52:08] WARNING 2024-08-01 18:52:08 - WARNING - utils utils.py:30 - Error retrieving messages from
monitor service: IO Error: Cannot open
database
"/app/data/.cache/langflow/monitor.duck
db" in read-only mode: database does
not exist
WARNING 2024-08-01 18:52:08 - WARNING - utils utils.py:166 - Error retrieving transactions from
monitor service: IO Error: Cannot open
database
"/app/data/.cache/langflow/monitor.duc
kdb" in read-only mode: database does
not exist
INFO 2024-08-01 18:52:08 - INFO - service.py:77 service - sqlite connect listener,
setting pragmas
INFO 2024-08-01 18:52:08 - INFO - utils utils.py:116 - No LLM cache set.
[08/01/24 18:52:09] INFO 2024-08-01 18:52:09 - INFO - service.py:29 service - Should store environment
variables in the database.
INFO 2024-08-01 18:52:09 - INFO - setup setup.py:604 - Super user initialized
INFO 2024-08-01 18:52:09 - INFO - utils utils.py:474 - Building custom components from
['/app/.venv/lib/python3.12/site-packa
ges/langflow/components']
/app/.venv/lib/python3.12/site-packages/pysbd/segmenter.py:66: SyntaxWarning: invalid escape sequence '\s' for match in re.finditer('{0}\s*'.format(re.escape(sent)), self.original_text): /app/.venv/lib/python3.12/site-packages/pysbd/lang/arabic.py:29: SyntaxWarning: invalid escape sequence '.' txt = re.sub('(?<={0}).'.format(am), '∯', txt) /app/.venv/lib/python3.12/site-packages/pysbd/lang/persian.py:29: SyntaxWarning: invalid escape sequence '.' txt = re.sub('(?<={0}).'.format(am), '∯', txt) ==> No open HTTP ports detected on 0.0.0.0, continuing to scan... ==> No open HTTP ports detected on 0.0.0.0, continuing to scan... ==> No open HTTP ports detected on 0.0.0.0, continuing to scan... ==> No open HTTP ports detected on 0.0.0.0, continuing to scan... ==> No open HTTP ports detected on 0.0.0.0, continuing to scan... ==> Port scan timeout reached, no open HTTP ports detected. If you don't need to receive public HTTP traffic, create a private service instead.

Reproduction

I followed these steps https://github.com/langflow-ai/langflow/blob/main/docs/docs/Deployment/deployment-render.md

Expected behavior

Should successfully install

Who can help?

No response

Operating System

Render

Langflow Version

1.0.14

Python Version

None

Screenshot

No response

Flow File

No response

Gluepower avatar Aug 01 '24 19:08 Gluepower

Hey there, @Gluepower! I'm here to help you with debugging, answering questions, and becoming a contributor. Let's squash those bugs together! 🐞

To resolve the deployment failure of Langflow v1.0.14 on Render due to missing database files and IO errors, ensure the disk is properly mounted and the database file path is correctly set. Based on the provided render.yaml configuration, the LANGFLOW_DATABASE_URL environment variable is set to use an SQLite database located at /home/user/.cache/langflow/langflow.db, and a disk is mounted at /home/user/.cache/langflow.

Here is the relevant part of the render.yaml configuration:

services:
  - type: web
    name: langflow
    runtime: docker
    dockerfilePath: ./docker/render.pre-release.Dockerfile
    repo: https://github.com/langflow-ai/langflow
    branch: dev
    healthCheckPath: /health
    autoDeploy: false
    envVars:
      - key: LANGFLOW_DATABASE_URL
        value: sqlite:////home/user/.cache/langflow/langflow.db
    disk:
      name: langflow-data
      mountPath: /home/user/.cache/langflow

Ensure the following:

  1. The disk named langflow-data is correctly set up and mounted at /home/user/.cache/langflow.
  2. The path specified in LANGFLOW_DATABASE_URL matches the mount path of the disk.

If the disk is not properly mounted or the path is incorrect, the application will not be able to find the database file, leading to IO errors.

Additionally, if you encounter the error Something went wrong running migrations. Please, run 'langflow migration --fix', you may need to clear the cache by deleting the contents of the cache folder. This folder can be found at:

  • Linux or WSL2 on Windows: home/<username>/.cache/langflow/
  • MacOS: /Users/<username>/Library/Caches/langflow/

Clearing the cache removes the langflow-pre.db file but will also erase your settings. If you wish to retain your files, back them up before clearing the folder.

If the issue persists, you may need to check the Dockerfile and the application code to ensure that the database initialization and access logic are correctly implemented [1][2][3].

To continue talking to Dosu, mention @dosu.

dosubot[bot] avatar Aug 01 '24 19:08 dosubot[bot]

To deploy Langflow you need 1GI of memory so the starter pack of 512MB doesn't work. We need to update the docs @carlosrcoelho

nicoloboschi avatar Aug 02 '24 08:08 nicoloboschi

@misbahsy and @lucaseduoli Please take a look at this.

carlosrcoelho avatar Aug 02 '24 11:08 carlosrcoelho