Comments on: MongoDB: A Light in the Darkness! (Key Value Stores Part 5)

By: Melissa Sheehan

Melissa Sheehan — Thu, 31 Mar 2011 00:26:00 +0000

Whoa that is very weird. Should be fixed now. Read on.

By: cantreadthis

cantreadthis — Wed, 30 Mar 2011 23:33:00 +0000

WHY IS THERE A GIANT FIELD FOR COMMENTS COVERING THE ENTIRE ARTICLE?

By: Pedro Marban

Pedro Marban — Thu, 21 Jan 2010 11:23:05 +0000

Version 0.18.2 2009-12-29
Significant GridStore performance improvement (thx., Sunny Hirai)
No more one byte at a time writes/reads!

By: Nuanda

Nuanda — Tue, 20 Oct 2009 09:35:51 +0000

Around a month ago I had the same problem with GridFS performance in mongodb Ruby driver. I hacked away a small "extension" of mine which I use now for faster writes and reads to/from the GridFS. Here is a gist link:

http://gist.github.com/214124

(I apologize for not being able to switch Ruby highlighting on and any other thing which went wrong with this gist – this is my first gist :)).

The idea is to add another set of fast_read, fast_write methods so one may use them instead – the methods use "entire-chunk-at-once" approach. It worked for me so far (but not in any kind of production installation, just in a private project), so I though I post it here, maybe it will be useful for you or someone else.

By: Jim Van Fleet

Jim Van Fleet — Thu, 08 Oct 2009 14:28:25 +0000

Here's something that was quite important for our use case that Tokyo* did not support. http://groups.google.com/group/rufus-ruby/browse_... In general, TokyoCabinet is more of a competitor for the key-value stores rather than the document-database model that CouchDB and MongoDB represent.

By: Kirk Haines

Kirk Haines — Fri, 25 Sep 2009 17:48:17 +0000

For an apples to apples comparison, you would need to compare Tokyo's table support to Mongo. I think when you do that, and especially if both have more than a tiny amount of data in them, Tokyo won't have a clear speed advantage. I haven't personally compared them in that way, but that's my hunch.

By: Jason

Jason — Fri, 25 Sep 2009 17:39:05 +0000

Just wondering, why would I want to use this over Tokyo DB? From what I understand Tokyo DB is faster and more flexible, but I don't really know.

By: akdubya

akdubya — Fri, 25 Sep 2009 16:27:15 +0000

Oops. That's http://gist.github.com/159487

By: akdubya

akdubya — Fri, 25 Sep 2009 16:23:38 +0000

It's not just you. GridFS has been quite slow for me as well even after fiddling with the chunk size. Here's a relevant gist: http://gist.github.com/159487. I agree that the driver is doing too much data shuffling in pure ruby. For now I'm using Tokyo Tyrant for distributed blob storage but I'd love to be able to simplify my config.

By: ehsanul

ehsanul — Fri, 25 Sep 2009 00:38:22 +0000

Yeah, MongoDB has a list of benchmarks done with various drivers. There are absolutely huge differences between the different drivers in different languages. The page is here: http://www.mongodb.org/display/DOCS/Performance+T...