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Building your own (Rails) hosting environment
- 1. Building your own hosting environment Nic Benders http://nicbenders.com/hosting nic@nicbenders.com
- 2. Server Checklist Hardware RAID + Hot Swap drives Remote console Redundant power supply Xeon CPU Linux distro with Long Term Support Apache + Phusion Passenger Working backups Gigabit Ethernet Monitoring
- 3. Switch from Software RAID-5 to Hardware RAID-1
- 4. Server Checklist Hardware RAID + Hot Swap drives Remote console Redundant power supply Xeon CPU Linux distro with Long Term Support Apache + Phusion Passenger Working backups Gigabit Ethernet Monitoring
- 5. Nehalem Memory Architecture •Each CPU has 3 channels •Each channel has up to 3 banks (slots)
- 6. Server Checklist Hardware RAID + Hot Swap drives Remote console Redundant power supply Xeon CPU Linux distro with Long Term Support Apache + Phusion Passenger Working backups Gigabit Ethernet Monitoring
- 7. Dell R710 (about $4,000) Dual Xeon E5520 (8 cores total) 12G RAM (6x2G, 1066 MHz RDIMM) RAID with 256M cache and battery backup 2x 146G, 15k RPM SAS drives Redundant power supplies Remote Console
- 8. Linux Distro Red Hat Enterprise Linux Ubuntu Server (LTS) or CentOS 5.x (Tikanga) 8.04 (Hardy Heron) Released in 2007 Released in 2008 Supported until 2014 Supported until 2013
- 9. Other Linux Tips Only install what you need Use LVM, especially for the root partition Use ext3 with “noatime” Everything you need should be in /etc/hosts Use iptables, even if you have a firewall Make sure root’s mail is being forwarded Learn Chef
- 13. Server Checklist Hardware RAID + Hot Swap drives Remote console Redundant power supply Xeon CPU Linux distro with Long Term Support Apache + Phusion Passenger Working backups Gigabit Ethernet Monitoring
- 14. Gigabit Switches Cisco (Linksys) Cisco 3750G SLM2008 • About $4,000 • About $100 • 24 or 48 ports • 4 or 8 ports • Very fast backplane • Offers some remote • Stackable, forms single management logical switch
- 15. Server Checklist Hardware RAID + Hot Swap drives Remote console Redundant power supply Xeon CPU Linux distro with Long Term Support Apache + Phusion Passenger Working backups Gigabit Ethernet Monitoring
- 16. Monitoring Alerting Performance • Nagios • Cacti • Pingdom ($) • New Relic RPM ($$)
- 17. Server Checklist Hardware RAID + Hot Swap drives Remote console Redundant power supply Xeon CPU Linux distro with Long Term Support Apache + Phusion Passenger Working backups Gigabit Ethernet Monitoring
Notas del editor
- Most people get this wrong Intro to my background Mention URL
- This list is the product of my own mistakes Lead-out on why Hardware RAID
- Degraded mode performance Cache with BBU Hot swap drives
- Remote console Redundant PSU
- Ruby is very memory bandwidth intensive Lots of L2 Cache, fast system memory Fill banks evenly 1 row = 1333 Mhz, 2 = 1066, 3 = 800
- Summarize hardware Lead out to R710
- This is (basically) what Basecamp runs on Lead-out to Linux
- Use Red Hat if you need vendor support Examples use CentOS 5 Avoid Debian or Gentoo unless you really know what you’re doing
- It’s okay to have DB on same machine Watch out for log files Lead out - Deploying Rails with Passenger
- UseGlobalQueue PoolIdleTime Ruby Enterprise Edition
- If it isn’t tested, it’s not a backup
- All your switches should be Cisco
- Like Testing for production systems Make decisions with real data Cacti & Nagios, not as hard as they look, use Net-SNMPd
- What are your questions?