Comments on: Persistent Django on Amazon EC2 and EBS – The easy way

By: Thomas Brox Røst

Thomas Brox Røst — Wed, 01 Feb 2012 23:19:08 +0000

Thanks, David. It shouldn't be too difficult to substitute PostgreSQL with MySQL. The Running MySQL on Amazon EC2 with EBS article on the AWS site might help you out. As long as you have a working MySQL installation and tell Django to use it you should be all set.

By: David Phillips

David Phillips — Wed, 01 Feb 2012 16:35:29 +0000

Thomas,

Great tutorial! Thank you for cutting hours off my install! I am a nood to django and python, but the app I have created, is using MySQL. Would it be difficult to install MySQL instead of PostgreSQL? Would it simply be a matter of installing MySQL instead of PostgreSQL (and then formatting the appropriate Django files)?

Again, thank you for all your hard work on this!

By: Thien Nguyen

Thien Nguyen — Sat, 28 Jan 2012 19:11:59 +0000

Awesome, it works. Thanks, Thomas!

By: Thomas Brox Røst

Thomas Brox Røst — Sat, 28 Jan 2012 10:25:23 +0000

Hi Thien, make sure that port 8000 in the EC2 security group is opened, as described in step 4. Otherwise your server will be blocked by the firewall, which might explain the timeout.

By: Thien Nguyen

Thien Nguyen — Sat, 28 Jan 2012 02:13:41 +0000

Hi, I followed your instruction and it worked fine up to step 9. The development server was launched with my public DNS on port 8000. However, when I enter the URL on some browser, the server just didn’t response and it resulted in a connection timed out. Do you know what’s wrong with it?
Thanks!

By: Ariel Aizemberg

Ariel Aizemberg — Tue, 15 Nov 2011 01:50:29 +0000

Dear Thomas, thank you so much!!!

By: Thomas Brox Røst

Thomas Brox Røst — Mon, 14 Nov 2011 17:52:08 +0000

Ariel, the /dev/sda2 partition is not persistent. If the instance goes down for whatever reason the data will be lost.

This posting is getting a bit old; nowadays you can have EBS-backed instances that can be stopped and restarted and where the data on the root device will be kept intact. See http://serverfault.com/questions/158647/ebs-volum-on-ec2-with-ubuntu-image-from-alestic for a good explanation.

I still prefer having my non-ephemeral data on dedicated EBS volumes that are mounted onto the instance. This makes it easy to set up a snapshot scheme for backup purposes and to replicate and move data around if required. It also tends to simplify recovery from catastrophic failure.

By: Ariel Aizemberg

Ariel Aizemberg — Mon, 14 Nov 2011 17:34:43 +0000

“/dev/sda2 158G 197M 150G 1% /mnt”

Why don´t store de postgresql database in the “/dev/sda2″ disk? into the “/mnt” directory structure? If you never “terminate” the instance, the data will survive.

PS: I am newbie in the AWS’s field.

By: How to setup Django website in Amazon EC2 hosting? | Software development support, software risk,bugs for bugs, risk analysis,

Mon, 14 Nov 2011 08:00:36 +0000

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By: Persistent Django on Amazon EC2 and EBS - Ext3 Ext4 Tutorial

Persistent Django on Amazon EC2 and EBS - Ext3 Ext4 Tutorial — Sat, 11 Jun 2011 14:13:21 +0000

[...] Here is a good tutorial show you how to Persistent Django on Amazon EC2 and EBS: Why EBS? EBS provides persistent storage, which means that the Django database is kept safe even after the Django EC2 instances terminate. [...]