1. Getting Started With SQL Server Replication
Robert Verell

2. GOLD

3. SILVER
BRONZE
PERSONAL/BLOG

4. About Me Senior DBA at Cigna-Healthspring since 2011
MCITP 2008 Database Admin
@sqlcowbell
Sqlcowbell.com/wordpress
ONE OF the chapter leaders for NashSUG

5. @SQLCowbell??

6. For Discussion Today Ways to natively copy data
Different types of replication
How replication works on the backend
Demo setup of transactional replication
Demo setup of snapshot replication
Adding an article without a full snapshot
Demo adding new subscription and changes replicating downstream

7. Ways to Replicate Data (Native)
Backup/Restore
SSIS Package/Import-Export Wizard/ETL
Log Shipping
Mirroring/Availability Groups
Replication
Triggers?
CDC/Service Broker

8. Different Replication Types
Transactional
Snapshot
Merge
Peer to Peer/Bidirectional
First let’s look at transactional replication. If you can understand that, snapshot is pretty easy.

9. How Does It Work(components)?
Jonah Jameson is the publisher
Paperboy is the distributor
People are the subscribers
Publisher
Distributor
Subscribers

10. How Does It Work? Publisher Distributor Subscribers
For the millennials.
Publisher
Distributor
Subscribers

11. Ok, How Does It Do That in SQL Server?
Initial setup – snapshot of articles
Distribution Agent applies snapshot
THEN,
Log Reader Agent reads transaction log
Distribution Agent applies changes
The snapshot uses BCP in and BCP out – it’s the fastest way to get data from one server to another
You can also do a database restore for initial setup of a subscriber

12. Push or Pull? Push Pull If you have a separate distributor
If distributor, publisher, and subscriber are on same inst
If your subscriber is under heavy load
If distributor and publisher are on same instance
If your publisher is under heavy load

13. Replication Restrictions
Primary Key for tables
XML Schema collections (snapshot only)
Code using WITH ENCRYPTION
You can replicate almost any object. But there are some restrictions.

14. Let’s Walk Through Setup
Yes, we’re going to walk through the wizard.
We start with distributor setup

15. First you have to configure the distributor
First you have to configure the distributor. So you right click replication and select configure distribution.

20. Now For the Publisher

25. Who can tell me why ChangeTicketJob111 is not selectable?

30. You can run under the agent account but for segregation of duties it’s recommended that you use a sep acct

32. That was easy right? Still got the subscribers

33. Lastly the Subscriber(s)

38. I actually set this up to run under the agent account, so any scripts will be for that setup.

39. You can select “on demand” as well

40. You can also select immediately if you’ve run the snapshot already

41. Let’s See The Rest of This Demo Live

42. You CAN Run Into A Problem Here.
Differentiated by the is_published flag in sys.objects

43. So Thats Transactional
Questions?

44. Let’s Look at Snapshot
It’s even easier

47. So Let’s See It in Action

48. Questions On Snapshot Replication
So you came to my session and you already knew all this crap that I’ve showed you. Well, maybe I can introduce you to some newer things!

49. Let’s look at adding an article!
NO FULL SNAPSHOT REQUIRED!!!!

50. One Moar Demo
Showing the data replicating; we’ll also add another snapshot

51. Tips For Making it Moar Faster
Multiple publications with larger articles having their own publications
Segregate your publisher/distributor/subscriber
Replicate Stored Procedures
Minimize Transaction size at publisher

52. Some More Advanced Options
AGENT PROFILES
So you came to my session and you already knew all this crap that I’ve showed you. Well, maybe I can introduce you to some newer things!
DO NOT implement these directly in production. TEST these settings.

53. Agent Profile Settings
-QueryTimeout
-BcpBatchSize
-MaxBcpThreads
-READBATCHSIZE -CommitBatchSize -CommitBatchThreshold
-MaxDeliveredTransactions

54. Let’s See What Agent Profiles Look Like

55. That’s It! Questions? Contact: Robert.verell@gmail.com @sqlcowbell
Sqlcowbell.com/wordpress