jvanulden opened a new issue #11774:
URL: https://github.com/apache/incubator-superset/issues/11774
I followed the instructions on the docker hub page for creating a container
with mysqlclient installed. I ran the container, went through the configuration
and ran init. Superset is up and running. Then I try to add a local connection
to a MySQL database using a connection parameters that work in two other
clients. I keep getting the following error:
ERROR: Connection failed, please check your connection settings
Connection string is:
mysql://admin:admin@localhost/mydb
### Expected results
Connection to the database
### Actual results
No connection
#### Screenshots
#### How to reproduce the bug
1. Extend the image on docker hub. Create a Dockerfile as follows:
```
FROM apache/incubator-superset
USER root
RUN pip install mysqlclient
USER superset
```
2. Build the image
3. Run the container
4. Add a new database connection
5. See the error
### Environment
- superset version: `latest`
- MacOS
### Checklist
Make sure to follow these steps before submitting your issue - thank you!
- [X] I have checked the superset logs for python stacktraces and included
it here as text if there are any.
- [X] I have reproduced the issue with at least the latest released version
of superset.
- [X] I have checked the issue tracker for the same issue and I haven't
found one similar.
### Additional context
```
Connection failed
WARNING:superset.databases.api:Connection failed
172.17.0.1 - - [21/Nov/2020:18:20:06 +0000] "POST
/api/v1/database/test_connection HTTP/1.1" 500 71
"http://localhost:8080/databaseview/list/?filters=%5B%5D&pageIndex=0&sortColumn=changed_on_delta_humanized&sortOrder=desc";
"Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML,
like Gecko) Version/14.0 Safari/605.1.15"
```
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