MongoBoston - MongoHQ

MONGOHQI got 99 problems but a schema ain’t one

ABOUT MONGOHQ

• Hosted MongoDB

• How we got started

LIFE IN THE CLOUD

• Hosting MongoDB on a cloud VPS

• Lessons learned as a hosting provider

•What to expect from MongoHQ in the future

DISK I/O IS NOT WEB SCALE

• Virtualized I/O is variable

• File allocation is slow

• EBS RAID is better

EBS RAID

• RAID-0

•Much faster

• Harder to snapshot

SNAPSHOTTING RAID

• Snapshot queues

• Can’t be synchronized

• SLOW

SNAPSHOT ALTERNATIVES

•Multiple Slaves with --slavedelay

• Same benefits

• faster / easier recovery

• always consistent

FREEMIUM UNLEADED

•NOT for production

• lowers barrier

• customers first experience

• higher volatility

Free Micro Small Large

QUOTAS

•Weak implementation

• File based rather than size based

• Strange things happen when you approach it

32-BIT ENVIRONMENT

•Don’t do it

• Under any circumstance

• Seriously

LIVE UPGRADING

• Using Master-Master

•Watch for old connections

• Stop replication first

BLEEDING EDGE ... IT HURTS

•MongoDB

•Drivers

•ODMs

WHAT TO EXPECT?

• Slave access on Large plans

•Dedicated plans with sharding & replication

•More AWS regions

• Slicehost & Rackspace support

QUESTIONS?@mongohq

support@mongohq.com