1. Sharding for Mere Mortals
MongoDB Austin
Antonio Rosales
February 15, 2013

2. Deploying Your App
● I got some ideas.
● I have heard there are some great tools to use.
● How can I deploy with limited:
○ time and knowledge?

3. Lots to Read
https://juju.ubuntu.com/

4. Wake Up
http://synchealthblog.files.wordpress.com/2011/01/i-love-waking-
up.gif

5. Eat
http://i.somethingawful.com/u/garbageday/2011/Comedy_Goldmine/drawmyav/peterjmatt_01.jpg
http://images.cpcache.com/merchandise/514_230x230_NoPeel.jpg?region=name:FrontCenter,id:60672883,w:16

6. Work
http://explicitlyrics.us/images/comment/leftcomputer.png

7. Family
http://www.harbus.org/wp-content/uploads/2011/10/Old-fashioned-couple.jpg

8. Family
http://www.sunnking.com/assets/images/blog/story-of-electronics.jpg

9. Sleep
http://www.patspapers.com/images/uploads/beautysleep.jpg

10. Normal Day
Or . .
http://www.sunnking.com/assets/images/blog/story-of-electronics.jpg

11. Game
http://www.mariomayhem.com/fun/colour_mario_in/Mario_Coloring_029_1_up.jpg

12. Watch
https://developers.google.com/youtube/images/YouTube_watermark_black.png

13. Make a Discovery
https://developers.google.com/youtube/images/YouTube_watermark_black.png

14. Train for the Olympics
http://www.visitmudgeeregion.com.au/mrti/wp-content/uploads/2012/09/Weight_Lifting_09.jpg

15. Be a Ninja
http://us.123rf.com/400wm/400/400/dclipart/dclipart1206/dclipart120600158/13932293-ninja-fighter--vector-illustration-vinyl-ready.jpg

16. Drink Beer(s)
http://farm8.staticflickr.com/7054/6934838001_58ac314d5c_z.jpg

17. Sleep
http://www.patspapers.com/images/uploads/beautysleep.jpg

18. Repeat
http://cdn1.iconfinder.com/data/icons/nounproject/512/290.png

19. Still Haven't Read
https://juju.ubuntu.com/

20. Time
Not enough unless you have . . .
http://1.bp.blogspot.com/-KSGB6DryCsc/UFHnDErwbMI/AAAAAAAAAIg/72cRrHtBnCo/s1600/Infinity+Time.JPG

21. Delorean Time Machine
http://media.giantbomb.com/uploads/2/26725/870907-delorean_super.jpg

22. Wormhole
http://kauilapele.files.wordpress.com/2011/08/wormhole_by_stefitms_50.jpg

23. Time Turner
http://www.pinkraygun.com/wp-content/uploads/2010/08/Time-Turner1.jpg

24. Star Gate
http://images.cryhavok.org/d/18278-2/Stargate.png

25. Brain Envy
My brain Your brain
http://www.builttosell.com/wp-content/uploads/2011/09/brain.png

26. How Can I configure, deploy, scale?
https://juju.ubuntu.com/
http://clean.alltheragefaces.com/img/faces/large/sad-sad-l.png

27. ● Distills DevOps knowledge into Charms
○ Repeatable, Scalable, Relatable, Sharable
https://juju.ubuntu.com
http://www.ubuntu.com/static/u/img/logos/logo-juju-143x143.png

28. Deploy over 100 Charms
https://juju.ubuntu.com
http://maas.ubuntu.com
http://www.blogcdn.com/www.engadget.com/media/2012/11/laptop-ubuntu-xps13.png

29. 0 to Deployed
● Install Juju
○ sudo apt-get-repository ppa:juju/pkgs
○ sudo apt-get update && sudo apt-get install juju
● Configure environments.yaml for interested cloud
○ juju bootstrap
○ ~/.juju/environments.yaml
● Deploy
○ juju deploy node-app my app
○ juju deploy mongodb
○ juju add-relation mongodb mayapp
○ juju expose myapp

30. Taking It Further
● Scale
○ juju add-unit -n 10 myapp
● Add load balancing
○ juju deploy haproxy
○ juju add-relation myapp haproxy
● Add Monitoring
○ juju deploy nagios
○ juju add-relation myapp nagios

31. GUI

32. Sharding Example
Bootstrap the environment
juju bootstrap
Mongo Shell
juju deploy mongodb mongos
Config Servers ( we'll deploy 3 of them )
juju deploy mongodb configsvr --config ~/mongodb-shard.yaml -n3
Shards ( We'll deploy three replica-sets )
juju deploy mongodb shard1 --config ~/mongodb-shard.yaml -n3
juju deploy mongodb shard2 --config ~/mongodb-shard.yaml -n3
juju deploy mongodb shard3 --config ~/mongodb-shard.yaml -n3
Connect the Config Servers to the Mongo shell (mongos)
juju add-relation mongos:mongos-cfg configsvr:configsvr
Connect each Shard to the Mongo shell (mongos)
juju add-relation mongos:mongos shard1:database
juju add-relation mongos:mongos shard2:database
juju add-relation mongos:mongos shard3:database

33. Sharding Example
● Verify your config servers
○ juju expose configsvr
○ juju status configsvr
○ Open your browser to http://<public-address-of-configsvr:28017
● Verify that each shard
○ juju expose <shard1|shard2|shard3>
○ juju status <shard1|shard2|shard3>
○ Open your browser to http://<public-address-of-shard>:28017
● Verify that each shard has been successfully register with the cluster:
○ juju expose mongos
○ juju status mongos
○ mongo --host <public-address-of-mongos>:27021
○ Once connected:
■ sh.status()

34. Sharding Example
● sh.status should return:
mongos> sh.status()
--- Sharding Status ---
sharding version: { "_id" : 1, "version" : 3 }
shards:
{ "_id" : "shard1", "host" : "shard1/ec2-184-169-236-25.us-west-1.compute.amazonaws.com:27017,ec2-
54-241-89-206.us-west-1.compute.amazonaws.com:27017,ip-10-170-173-51:27017" }
{ "_id" : "shard2", "host" : "shard2/ec2-204-236-159-194.us-west-1.compute.amazonaws.com:27017,ip-
10-170-22-104:27017" }
{ "_id" : "shard3", "host" : "shard3/ec2-184-169-219-11.us-west-1.compute.amazonaws.com:27017,ec2-
184-169-239-214.us-west-1.compute.amazonaws.com:27017,ip-10-170-215-20:27017" }
databases:
{ "_id" : "admin", "partitioned" : false, "primary" : "config" }
mongos>

35. Get Involved
● juju@lists.ubuntu.com
● #juju on IRC Freenode
● juju.ubuntu.com
● Interested in Charming:
○ Embed best practice into charms

36. Thanks!
MongoDB Austin
antonio.rosales@canonical.com