About me

Kornel Lugosi (Coornail)

Student at University of Szeged

Drupal developer @ Pronovix

Linux enthusiastic

How to use Amazon EC2 for Drupal

My idea about Why this #$%$@&^% thing is not working?

Time

Hosting solutions

WebhostingInitial cost is cheap

Monthly cost is cheap

Is it reliable?

No customization

No server maintenance

Hosting solutions

Virtual Private ServerInitial cost is moderate

Monthly cost is moderate

Is it reliable?

Is it fast?

Full customization

You have to maintain the software

Usually the memory is quite limited

Hosting solutions

Dedicated ServerInitial cost is very high

Monthly cost is cheap

Is it reliable?

It's fast

Full customization

You have to maintain the software and the hardware

Hosting solutions

Amazon cloudInitial cost is moderate

Monthly cost is moderate

Is it reliable?

Full customization (even in the hardware in minutes)

You have to maintain the software (and that's harder here)

About amazon ec2

Virtualised Hardwares (Instances)

Distributed

Dynamically scalable

Some terms

My server is fast and strong, why would I need that?

Maybe you'll need more servers... like tomorrow

Hardware will eventually break down

You don't have to worry about those ^^

That's not true

Errors can be present at the software level in the AMI

Nothing guarantees that if you start a server instance it will run 'til the end of time

The AMIs storage is not permanent!

What happens if an instance gets terminated?

Your data is lost

Permanent storage

S3 (Simple Storage Service)Doesn't store files

Stores objects, buckets and keys

You have to design the application to use it

There is a module for that: project/amazon_s3

EBS (Elastic Block Store)Provides traditional block devices

It can store any filesystem (and any file)

Permanent storage

S3 (Simple Storage Service)Backing up EBS-s

Upload bundled AMIs

EBS (Elastic Block Store)Mount it (in a specific region)

Store your drupal files and database on it! (/var, and /home propably)

Tools

Command line toolsTo create new AMIs

You can automatize things!

(Write aliases for the keys)

Browsing images not working in the eu? Seriously?

Command line

Tools

Web consoleLimted features

What works, works great

You cannot boundle images

Web console

Tools

ElasticfoxLaggy responsiveness

No feedback that it's doing anything

It has a lot of options (and almost everything is working)

(Install it in a different profile)

Elasticfox

Other tools

S3 firefox organizer (still, those are not files)

Performance is money

Bandwidthmod_gzip (check Drupals js/css mime types!)

mod_expire

ssh -C (I mean we're talking about linux, right?)

(net.ipv4.tcp_tw_reuse = 1)

(net.ipv4.tcp_tw_recycle =1)

Memorypecl install apc

Apache mod_fastcgi / nginx + *fcgi

The legend of disk IO

It's not legendary slow, but slow

Bandwidth is okay, latency is slow

Stop whining, there's a workaround

Save on memory faster disc ioapc.ini: apc.shm_size="[bignumber]"

Start using fastcgi (it has almost constant memory consumption filecache lives longer)

Optimize disk ioUse noop scheduler (echo noop > /sys/block/sda/queue/scheduler)

Use noatime, nodiratime (/etc/fstab)

(Use ext4, data=writeback)

Stop whining, there's a workaround

php.ini: realpath_cache_size=1M

Use multisite (apc cache)

(Consider using nginx?)

Relational Database Service

You can outsource mysql! (costs a lot)

Full mysql 5.1 compilance (they said)

More instances can use it!

Still want to use it?

We do =)

Not fitting for everybody

ec2Elastic Cloud Computing

s3Simple Storage Service

AMIAmazon Machine Image

EBSElastic Block Store

RDSRelational Database Service

OMG ec2 is 1337!!11I like amazon's cloud computing solution

???Page ??? (???)11/01/2009, 13:56:28Page /