![About Me
• WordPress Plugins Developer
– Since 2003
– Created > 22 plugins
• wp-pagenavi, wp-polls, wp-postratings, wp-postviews,
wp-dbmanager, etc
• http://profiles.wordpress.org/gamerz
• Tech Guy in Tech in Asia
– Started officially on 1st September 2014
– We are still hiring
Lester Chan (@gamerz) [ 2 ]](https://image.slidesharecdn.com/singaporewordpressusergroupmeetupjune2015-scalingtechinasia-150629123713-lva1-app6891/75/scaling-tech-in-asia-2-2048.jpg?cb=1670249504)
![Timeline
• July 2014
– Willis approached me to join Tech in Asia and
expand the engineering team
• August 2014
– Hired an awesome engineer, Li Soon
– Both of us started work to scale Tech in Asia
Lester Chan (@gamerz) [ 3 ]](https://image.slidesharecdn.com/singaporewordpressusergroupmeetupjune2015-scalingtechinasia-150629123713-lva1-app6891/75/scaling-tech-in-asia-3-2048.jpg?cb=1670249504)
![Previous Servers
• Previous
– Digital Ocean
• 1 server
• 32 GB/12 CPUS, 320 GB SSD Disk and 7TB transfer
• US$320/month
• Crashed when we have about 500 users online at the
same time
Lester Chan (@gamerz) [ 4 ]](https://image.slidesharecdn.com/singaporewordpressusergroupmeetupjune2015-scalingtechinasia-150629123713-lva1-app6891/75/scaling-tech-in-asia-4-2048.jpg?cb=1670249504)
![Current Servers
• Current
– SoftLayer
• Catalyst Startup Program
• USD$10,000 credits per month
• 5 Bare Metal Servers
– 1x Load Balancer
– 3x Web Servers
– 2x Database Server
– 1x Ops Server
• Highest recorded users online is 2,734
Lester Chan (@gamerz) [ 5 ]](https://image.slidesharecdn.com/singaporewordpressusergroupmeetupjune2015-scalingtechinasia-150629123713-lva1-app6891/75/scaling-tech-in-asia-5-2048.jpg?cb=1670249504)
![Monitoring
• Graphite
– Push based
• Grafana
– Front-end for Graphite
• collectd
– data-collecting daemon
– network, cpu, load, etc
Lester Chan (@gamerz) [ 6 ]](https://image.slidesharecdn.com/singaporewordpressusergroupmeetupjune2015-scalingtechinasia-150629123713-lva1-app6891/75/scaling-tech-in-asia-6-2048.jpg?cb=1670249504)
![User Uploaded Files
• /wp-content/uploads
– File uploads are stored here
• GlusterFS
– Write once, read everywhere
• Distributed architecture for syncing files
• Avoids a single point of failure (i.e. NAS)
Lester Chan (@gamerz) [ 7 ]](https://image.slidesharecdn.com/singaporewordpressusergroupmeetupjune2015-scalingtechinasia-150629123713-lva1-app6891/75/scaling-tech-in-asia-7-2048.jpg?cb=1670249504)
![WordPress
• Moved WordPress to a folder /core/
– Prevent automated attacks
– /core/ is a git checkout of WordPress
• HTTPS
– Encrypts sensitive data between computers
– Prevents man in the middle attacks
– Ranking boost in Google SEO
Lester Chan (@gamerz) [ 8 ]](https://image.slidesharecdn.com/singaporewordpressusergroupmeetupjune2015-scalingtechinasia-150629123713-lva1-app6891/75/scaling-tech-in-asia-8-2048.jpg?cb=1670249504)
![Cleaning Up Plugins
• Removed 48 plugins
– From 83 plugins to 35 plugins
• Some plugins are poorly coded
– No uninstall.php
• Manually removed plugin options from wp_options
table
– Remove meta
• Comment
• Post
• User
Lester Chan (@gamerz) [ 9 ]](https://image.slidesharecdn.com/singaporewordpressusergroupmeetupjune2015-scalingtechinasia-150629123713-lva1-app6891/75/scaling-tech-in-asia-9-2048.jpg?cb=1670249504)
![CDN
• Previous
– EdgeCast
• Horrible UI/UX admin interface
• No free shared SSL cert
• Current
– MaxCDN
• Free for us
• YC Deal
Lester Chan (@gamerz) [ 10 ]](https://image.slidesharecdn.com/singaporewordpressusergroupmeetupjune2015-scalingtechinasia-150629123713-lva1-app6891/75/scaling-tech-in-asia-10-2048.jpg?cb=1670249504)
![Redesigning Theme
• The TiA theme was poorly coded
– No proper use of WordPress API
– Unnecessary SQL queries all over the place
– Not minifying CSS/JS
– Unused features still in code
Lester Chan (@gamerz) [ 11 ]](https://image.slidesharecdn.com/singaporewordpressusergroupmeetupjune2015-scalingtechinasia-150629123713-lva1-app6891/75/scaling-tech-in-asia-11-2048.jpg?cb=1670249504)
![Redesigning Theme
• Rewrote the theme from scratch
– Removed unused or unnecessary features
– Use of SVG and Font Icons
– Flatter UI
– CSS/JS more efficient
• Combine + Minify
– Caching
Lester Chan (@gamerz) [ 12 ]](https://image.slidesharecdn.com/singaporewordpressusergroupmeetupjune2015-scalingtechinasia-150629123713-lva1-app6891/75/scaling-tech-in-asia-12-2048.jpg?cb=1670249504)
![Web Stack
• Previous
– Apache
– PHP
– MySQL
• Current
– nginx
– HHVM
– MariaDB
Lester Chan (@gamerz) [ 13 ]](https://image.slidesharecdn.com/singaporewordpressusergroupmeetupjune2015-scalingtechinasia-150629123713-lva1-app6891/75/scaling-tech-in-asia-13-2048.jpg?cb=1670249504)
![Summary
• Moving Servers
• Cleaning up WordPress Plugins
• Redesigning theme
• Changing our web stack
Lester Chan (@gamerz) [ 14 ]](https://image.slidesharecdn.com/singaporewordpressusergroupmeetupjune2015-scalingtechinasia-150629123713-lva1-app6891/75/scaling-tech-in-asia-14-2048.jpg?cb=1670249504)
![Questions?
• Any questions?
• You can also find me at
– Blog: https://lesterchan.net
– Twitter: @gamerz
– Facebook: https://fb.com/lesterchan
– Instagram: @gamerz
Lester Chan (@gamerz) [ 15 ]](https://image.slidesharecdn.com/singaporewordpressusergroupmeetupjune2015-scalingtechinasia-150629123713-lva1-app6891/75/scaling-tech-in-asia-15-2048.jpg?cb=1670249504)
Scaling Tech in Asia
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My presentation slides for Scaling Tech in Asia during WordPress Meetup June 2015 organised by Singapore WordPress User Group.
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Scaling Tech in Asia
- 1. Scaling Tech in Asia How we scaled Tech in Asia
- 2. About Me • WordPress Plugins Developer – Since 2003 – Created > 22 plugins • wp-pagenavi, wp-polls, wp-postratings, wp-postviews, wp-dbmanager, etc • http://profiles.wordpress.org/gamerz • Tech Guy in Tech in Asia – Started officially on 1st September 2014 – We are still hiring Lester Chan (@gamerz) [ 2 ]
- 3. Timeline • July 2014 – Willis approached me to join Tech in Asia and expand the engineering team • August 2014 – Hired an awesome engineer, Li Soon – Both of us started work to scale Tech in Asia Lester Chan (@gamerz) [ 3 ]
- 4. Previous Servers • Previous – Digital Ocean • 1 server • 32 GB/12 CPUS, 320 GB SSD Disk and 7TB transfer • US$320/month • Crashed when we have about 500 users online at the same time Lester Chan (@gamerz) [ 4 ]
- 5. Current Servers • Current – SoftLayer • Catalyst Startup Program • USD$10,000 credits per month • 5 Bare Metal Servers – 1x Load Balancer – 3x Web Servers – 2x Database Server – 1x Ops Server • Highest recorded users online is 2,734 Lester Chan (@gamerz) [ 5 ]
- 6. Monitoring • Graphite – Push based • Grafana – Front-end for Graphite • collectd – data-collecting daemon – network, cpu, load, etc Lester Chan (@gamerz) [ 6 ]
- 7. User Uploaded Files • /wp-content/uploads – File uploads are stored here • GlusterFS – Write once, read everywhere • Distributed architecture for syncing files • Avoids a single point of failure (i.e. NAS) Lester Chan (@gamerz) [ 7 ]
- 8. WordPress • Moved WordPress to a folder /core/ – Prevent automated attacks – /core/ is a git checkout of WordPress • HTTPS – Encrypts sensitive data between computers – Prevents man in the middle attacks – Ranking boost in Google SEO Lester Chan (@gamerz) [ 8 ]
- 9. Cleaning Up Plugins • Removed 48 plugins – From 83 plugins to 35 plugins • Some plugins are poorly coded – No uninstall.php • Manually removed plugin options from wp_options table – Remove meta • Comment • Post • User Lester Chan (@gamerz) [ 9 ]
- 10. CDN • Previous – EdgeCast • Horrible UI/UX admin interface • No free shared SSL cert • Current – MaxCDN • Free for us • YC Deal Lester Chan (@gamerz) [ 10 ]
- 11. Redesigning Theme • The TiA theme was poorly coded – No proper use of WordPress API – Unnecessary SQL queries all over the place – Not minifying CSS/JS – Unused features still in code Lester Chan (@gamerz) [ 11 ]
- 12. Redesigning Theme • Rewrote the theme from scratch – Removed unused or unnecessary features – Use of SVG and Font Icons – Flatter UI – CSS/JS more efficient • Combine + Minify – Caching Lester Chan (@gamerz) [ 12 ]
- 13. Web Stack • Previous – Apache – PHP – MySQL • Current – nginx – HHVM – MariaDB Lester Chan (@gamerz) [ 13 ]
- 14. Summary • Moving Servers • Cleaning up WordPress Plugins • Redesigning theme • Changing our web stack Lester Chan (@gamerz) [ 14 ]
- 15. Questions? • Any questions? • You can also find me at – Blog: https://lesterchan.net – Twitter: @gamerz – Facebook: https://fb.com/lesterchan – Instagram: @gamerz Lester Chan (@gamerz) [ 15 ]