getredash/redash

Show meaningful error message when Redash can't connect to Redis or Postgres

Open

#3704 opened on Apr 11, 2019

View on GitHub
 (2 comments) (0 reactions) (0 assignees)Python (24,845 stars) (4,236 forks)batch import
Backendhelp wanted

Description

During startup, if Redash fails to connect to Redis or Postgres it will raise an unexpected exception. We should catch these exceptions, showing a meaningful message and pointing the user to setup instructions to explain what Redash depends on.

Contributor guide

Tech stack
pythonredispostgresql
Domain
backenddatabasedeveloper experience
Issue type
bug
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
2
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
under 1 hour
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
stale
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
clear
Prerequisites
Python programmingFamiliarity with Redis and PostgreSQL
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
75
Research direction
Examine Redash's startup code, likely in redash/ init .py or redash/settings.py, where connections to Redis and PostgreSQL are established. Catch the exceptions during connection attempts and display a meaningful error message that guides users to setup instructions. Look for existing exception handling patterns in the codebase and follow them.