Best practices and recommendations for deploying MongoDB on Amazon EC2 and EBS.

1. MongoDB on Amazon Web Services Webinar 3-14-2011

2. Agenda MongoDB deployment components Amazon EC2 infrastructure Deployment scenarios

3. Mongodb components

5. Needs RAM + Disk IO

6. Can run as Arbiter

7. No data

8. Just votes to elect primary

9. Stateless router

10. Typically run on App Servers

11. Stores sharding configuration

12. Stores small amounts of data

14. Sharding MongoD MongoD MongoD MongoD MongoS MongoS MongoS ConfigD MongoD MongoD MongoD MongoD ConfigD ConfigD MongoD MongoD MongoD MongoD

15. Amazon EC2

16. Amazon EC2 Instance Types 32-bit = Don’t Use Typical MongoD ConfigD/ Arbiter Big MongoD 32-bit = Don’t Use High CPU not necessary

17. OS Turn off atime Raise file descriptor limits cat >> /etc/security/limits.conf << EOF * hard nofile 65536 * soft nofile 65536 EOF DO NOT use large VM pages Use ext4, xfs Use RAID RAID10 on MongoD RAID1 on ConfigbDB Warning! Known problems with Ubuntu 10.04 & EBS https://bugs.launchpad.net/ubuntu/+source/linux-ec2/+bug/614853 https://bugzilla.kernel.org/show_bug.cgi?id=16991

18. Mongodb components on ec2

19. MongoD on EC2 MongoD 64-Bit EC2 Instance LVM or MDADM RAID 10 EBS Volumes

20. MongoS on EC2 Language Specific Driver Your App 32- or 64-Bit EC2 Instance (Typically your app server) MongoS

21. Arbiter on EC2 64-Bit EC2 Instance (Micro Instance is Fine) Arbiter Local Instance Storage

22. ConfigDB on EC2 64-Bit EC2 Instance (Micro Instance is Fine) ConfigDB LVM or MDADM RAID 1 EBS Volumes

23. Deployment Scenarios

24. 3-Node Replica Set Your App Large Large Large MongoD (Primary) MongoD (Secondary) MongoD (Secondary) RAID 10 RAID 10 RAID 10

25. 2-Nodes + Arbiter Your App Large Large Micro MongoD (Primary) MongoD (Secondary) Arbiter RAID 10 RAID 10

26. 3-Node Replica Set Your App US West US East Large Large Large MongoD (Primary) MongoD (Secondary) MongoD (Secondary) Priority = 0 RAID 10 RAID 10 RAID 10

27. Config DB Sharding Amazon ELB App Tier Shard 2 Shard 1 Shard 3

28. Running in ec2

29. Operational Considerations Automating Deployment Puppet Chef Amazon CloudFormation

30. Backup / Restore EBS Snapshots Also for rapid replica provisioning LVM Snapshots Use secondaries for zero downtime backups http://www.mongodb.org/pages/viewpage.action?pageId=19562846

32. Specify alternate port with –port

33. Don’t mix names & IP’s. Names preferred

34. Use security groups as access control lists

36. Questions? I am Jared Rosoff (jsr@10gen.com) @forjared Try it out! http://www.mongodb.org/downloads http://www.mongodb.org/display/DOCS/Amazon+EC2