How to reset a mongoid 3 database connection

Question

In Mongoid 2.x one could execute Mongoid.database.connection.close to reset a database connection. This specific API is no longer available in Mongoid3, what is the new way to reset a connection?

Motivation: interrupting a query while it's in-progress (ctrl-c) will kill your connection. Any subsequent queries will just hang. Additionally, thrown errors such as timeouts will do the same thing (see: http://simple10.com/rescuing-from-racktimeout-to-close-mongodb-connection).

Maybe this is what you are looking for? http://rdoc.info/github/mongoid/moped/Moped/Connection#disconnect-instance_method — Kori John Roys, Sep 28 '12 at 16:35

score 4 · Accepted Answer · answered Nov 20 '13 at 20:17

4

I found the solution!

Mongoid::Sessions.default.disconnect

or

Model.collection.database.session.disconnect

This will properly reset the connection if you ctrl-c to interrupt a query in the console.

answered Nov 20 '13 at 20:17

davogones

7,321
31
36

score 0 · Answer 2 · answered Sep 29 '12 at 20:56

0

It turns out that Mongoid3's replacement mongo driver, Moped, actually handles retrying connections automatically.

https://github.com/mongoid/moped/blob/master/lib/moped/node.rb#L115

answered Sep 29 '12 at 20:56

ccurtisj

388
2
13

Hmm, if I `ctrl-c` a mongoid query on the console, I can't seem to get it back. Have to exit the console and restart. Did you ever find a solution for this? – Brian Armstrong Oct 24 '12 at 23:32
If you're on mongoid 2.x you can call `Mongoid.database.connection.close` to have it reconnect. – ccurtisj Nov 04 '12 at 18:01
but how does one access a Moped Node instance? – Peter Ehrlich Apr 26 '13 at 00:24

score 0 · Answer 3 · answered Aug 31 '18 at 16:12

0

Besides disconnecting a specific session with

Mongoid::Sessions.default.disconnect

You can also disconnect all sessions with

Mongoid::Sessions.disconnect

You can get a list of all active sessions with

Mongoid.sessions

answered Aug 31 '18 at 16:12

Bruno Tavares

1

How to reset a mongoid 3 database connection

3 Answers3