Disqus - Latest Comments for robtweed

Re: Modeling a Tree in a Document Database - sean cribbs :: digital renaissance man

robtweed — Sun, 21 Feb 2010 13:22:21 -0000

You ought to also take a look at GT.M: its database is a naturally hierarchical schemaless architecture that makes the creation of trees very simple and natural. The new M/Wire protocol - http://www.mgateway.com/mwi... - is now making GT.M a very accessible database.

Re: James on Software | Introducing Friendly: NoSQL With MySQL in Ruby

robtweed — Fri, 18 Dec 2009 04:31:10 -0000

GT.M would handle something like that comfortably. See http://bit.ly/70MI7m

Re: James on Software | Introducing Friendly: NoSQL With MySQL in Ruby

robtweed — Thu, 17 Dec 2009 13:17:13 -0000

Not all the NoSQL databases are young. See http://www.slideshare.net/r...

Re: Introducing GT.M and M/DB

robtweed — Thu, 10 Dec 2009 09:58:44 -0000

Let me tidy up that broken URL you referenced! :-)

http://gradvs1.mgateway.com...

Rob

Re: Fetching multiple SimpleDB items in a single request

robtweed — Tue, 24 Nov 2009 12:09:26 -0000

Pleased to report that M/DB supports this mechanism too :-)

Re: The State of SimpleDB Clones

robtweed — Tue, 17 Nov 2009 11:15:37 -0000

Yes it's a difficult balancing act creating something like M/DB: how much do you provide ready-fixed and how much do you leave configurable so users can adapt it to their needs. As an Open Source product, my view was to provide a simple basic "out of the box" configuration that others could adapt as needed, and build it in such a way that such adaptation was possible.

With M/DB soon to be a pre-built image provided by Canonical in their Ubuntu Enterprise Cloud Image Store, I'm hoping that more of the SDB client authors will be motivated to provide M/DB configurability as a matter of course. I think that's the real solution you need!

Rob

Re: The State of SimpleDB Clones

robtweed — Tue, 17 Nov 2009 11:10:55 -0000

I'd suggest getting a standard off the shelf Debian or Ubuntu pre-built VirtualBox VM and then just apply the M/DB installer to it. I know VMWare have standard pre-built Linux VMs in their marketplace - not sure if these can be adapted for VirtualBox or whether an equivalent exists elsewhere.

As you noted we used to provide M/DB as a pre-built VMWare VM but to be honest it was more trouble than it was worth once we had the installer instead. The installer gives you a lot more flexibility and it's a lot easier for us to manage and maintain.

Rob

Re: The State of SimpleDB Clones

robtweed — Tue, 17 Nov 2009 10:44:26 -0000

A few comments about M/DB if I may:

- we're working on an rpm installer. Since M/DB is an application written on top of the GT.M database, it will run on any platform supported by GT.M, which for the open source version, means GNU Linux. I'm afraid there won't be a Mac version as a result. You could of course run it as a Linux VM inside OSX using eg Parallels or similar.

- however M/DB *is* compatible with the Cache' database which is available natively on OSX, but Cache' is a commercially licensed database product

- Yes the default configuration for Apache is set up as port 80 but you can change this to whatever you like in the Apache config file. Similarly it ought to be a simple task to add some mod_rewrite rules to map the M/DB path (/mdb/request.mgwsi) to a simple path that DataMapper can handle.

- Alternatively get in touch with the folks who wrote the RightAWS library. Getting a change made to the endpoint URL should be pretty trivial for them. By comparison the standard off-the-shelf Python SimpleDB interface (boto) was already configurable for M/DB by using some appropriate parameters in the connect_sdb() function.

Hope this helps

Rob Tweed
M/Gateway Developments Ltd

Re: Databases and Cloud Computing Roundup

robtweed — Wed, 15 Jul 2009 05:30:58 -0000

Two to add to your list:

- M/DB, an Open Source SimpleDB clone (http://www.mgateway.com/mdb.... Answers your issue regarding the proprietary nature of SimpleDB - M/DB could be run in any cloud to provide SimpleDB functionality

- M/DB:X, an Open Source JSON/XML hybrid cloud-ready database (http://www.mgateway.com/mdb...