KeyError: 'dbName'

[Leekao]

Installed reDash, added a data source and called it 'staging_DB', then I added another DB and accidentally called it also 'staging_DB', then i saw "saving failed" msg, realized my mistake and changed the name to 'production_DB', got another 'saving failed', refresh the page and got internal server error, this is the trace from the log:

[2016-08-09 13:36:57,329][PID:30985][ERROR][redash] Exception on /api/data_sources [GET]
Traceback (most recent call last):
File "/usr/local/lib/python2.7/dist-packages/flask/app.py", line 1475, in full_dispatch_request
rv = self.dispatch_request()
File "/usr/local/lib/python2.7/dist-packages/flask/app.py", line 1461, in dispatch_request
return self.view_functionsrule.endpoint
File "/usr/local/lib/python2.7/dist-packages/flask_restful/init.py", line 477, in wrapper
resp = resource(_args, *_kwargs)
File "/usr/local/lib/python2.7/dist-packages/flask_login.py", line 792, in decorated_view
return func(_args, *_kwargs)
File "/usr/local/lib/python2.7/dist-packages/flask/views.py", line 84, in view
return self.dispatch_request(_args, *_kwargs)
File "/opt/redash/current/redash/handlers/base.py", line 25, in dispatch_request
return super(BaseResource, self).dispatch_request(_args, *_kwargs)
File "/usr/local/lib/python2.7/dist-packages/flask_restful/init.py", line 587, in dispatch_request
resp = meth(_args, *_kwargs)
File "/opt/redash/current/redash/permissions.py", line 41, in decorated
return fn(_args, *_kwargs)
File "/opt/redash/current/redash/handlers/data_sources.py", line 66, in get
d = ds.to_dict()
File "/opt/redash/current/redash/models.py", line 378, in to_dict
'syntax': self.query_runner.syntax,
File "/opt/redash/current/redash/models.py", line 454, in query_runner
return get_query_runner(self.type, self.options)
File "/opt/redash/current/redash/query_runner/init.py", line 148, in get_query_runner
return query_runner_class(configuration)
File "/opt/redash/current/redash/query_runner/mongodb.py", line 101, in init
self.db_name = self.configuration["dbName"]
File "/opt/redash/current/redash/utils/configuration.py", line 73, in getitem
raise KeyError(item)
KeyError: 'dbName'

[Leekao]

I tried re-installing, didn't help.

[arikfr]

We keep the issue tracker for actionable (confirmed) bug reports and feature requests. Please use the Support category in our discussion forum for other questions.

When you post your question there, please add some additional information that will help understand what happened like:

1. What version of Redash do you use?
2. How did you install Redash?
3. What OS/browser?
4. What type of data source did you create?

Thanks.