Amazon Relational Database Service (Amazon RDS) is a web service that makes it easy to set up, operate, and scale a relational database in the cloud. With Amazon RDS, you can MySQL in minutes with cost-efficient and re-sizable hardware capacity. In this webinar, we'll discuss how to get the most out of the service, including techniques for migrating data in and out.

1. © 2011 Amazon.com, Inc. and its affiliates. All rights reserved. May not be copied, modified or distributed in whole or in part without the express consent of Amazon.com, Inc.
Amazon RDS for MySQL: Best
Practices and Data Migration

3. Amazon RDS
Amazon RDS

4. Amazon RDS is simple and fast to deploy

5. Amazon RDS handles management tasks

9. DB
Master
App
Backup
AWS Region
Replication
App
scp Load data
Staging server
DB Slave

12. SQL Flat files

13. mysql> GRANT SELECT,REPLICATION USER,REPLICATION CLIENT ON *.* TO repluser@‘<RDS
Endpoint>' IDENTIFIED BY ‘<password>';
Create replication user on the master
Record the “File” and the “Position” in the backup
$ mysqldump --databases sampledb --master-data=2 --single-transaction
-r sampledbdump.sql -u mysqluser –p mysqluserpassword
--
-- Position to start replication or point-in-time recovery from
--
-- CHANGE MASTER TO MASTER_LOG_FILE='mysql-bin-changelog.000031', MASTER_LOG_POS=107;

14. Configure replication target
mysql> call mysql.rds_set_external_master(‘<master
server>',3306,‘<replicationuser>',‘<password>','mysql-bin-changelog.000031',107,0);
mysql> call mysql.rds_start_replication;
Configure the replication target and start replication
Stop the app pointing at the source. Stop replication after target catches up
mysql> call mysql.rds_stop_replication;
Promote target Amazon RDS database instance
mysql> call mysql.rds_reset_external_master;
Point the app at the target Amazon RDS database instance

15. AWS Region
App
Dump Data
Staging server
scp & load
MasterSlave
mysql> call mysql.rds_set_configuration('binlog retention hours', 48);

17. Physical
synchronous
replication
AZ1 AZ2
DNS
cname update

18. Sync
replication
Async replication

19. [ERROR] Slave I/O: Got fatal error 1236 from master when reading data from binary log:
‘Client requested master to start replication from impossible position;

20. Source: https://blogs.oracle.com/MySQL/entry/mysql_5_6_replication_performance

21. AZ1 AZ2 AZ1

23. Reads10% Reads10% Reads10% Reads10%
Reads10% Reads10% Reads10% Reads10%
Reads10%
Writes10%
Reads10%
Reads10%
Writes10%
Reads10%
Reads10%
Writes10%
Reads10%
Reads10%
Writes10%
Reads10%
Reads10%
Writes10%
Reads10%
Reads10%
Writes10%
Reads10%
Reads10%
Writes10%
Reads10%
Reads10%
Writes10%
Reads10%
Reads10%
Writes10%
Reads10%
Writes10%
Reads10%
Reads
90%
Writes10%
Primary
Writes10%
Replica1
Writes10%
Replica2
Writes10%
Replica3
Writes10%
Replica4
1X2X3X SCALE

24. Writes 20% Writes 20% Writes 20% Writes 20%
Reads
80%
Reads 20% Reads 20% Reads 20% Reads 20%
Reads 20%
Writes 20%
Reads 20%
Writes 20%
Reads 20%
Writes 20%
Reads 20%
Writes 20%
Writes 20%
Writes20%
Primary Replica1 Replica2 Replica3 Replica4
1X2X SCALE

25. 50%
40%
30%
20%
10%
1
2
3
4
5
6
7
8
1 2 4 8 16 32
Scale
Scale based on % Write

26. 4x
Load buffer pool
Dump buffer pool

27. 0
5000
10000
15000
20000
25000
30000
10
30
50
70
90
110
130
150
170
190
210
230
250
270
290
310
330
350
370
390
410
430
450
470
490
510
530
550
570
590
610
630
650
670
690
TransactionsperSecond
Time (sec)
Workload with 50/50 R/W ratio
Unwarmed Cache
Warmed Cache
4X
9 min

29. mysql> CREATE EVENT ‘evt_dump_innodb_cache’
ON SCHEDULE EVERY 1 HOUR STARTS ‘2014-11-06 01:00:00’
DO BEGIN
CALL mysql.rds_innodb_buffer_pool_dump_now();
END

30. Considerations Options

31. Read Only
ReplicaPrimary R2MasterR/W
mysql> ALTER TABLE customers_address ADD COLUMN province VARCHAR(100);

33. pt-online-schema-change --alter
"ADD COLUMN province
VARCHAR(100)" --execute
h=localhost,D=bench,t=customers_
address,u=admin,p=admin

37. Logging + Storage
SQL
Transactions
Caching
Control PlaneData Plane
Amazon S3
DynamoDB
Amazon SWF
Amazon Route 53

40. © 2011 Amazon.com, Inc. and its affiliates. All rights reserved. May not be copied, modified or distributed in whole or in part without the express consent of Amazon.com, Inc.
Questions?