Are you unsure of the steps needed to get your Continuent Tungsten cluster up-and-running? In this live virtual course, we will teach you how to get from a single database server to a scalable cluster, or from a brittle MySQL replication system to a transparent, manageable Tungsten cluster. We will discuss the benefits of leveraging Continuent Tungsten clustering with MySQL, and walk you through the steps to implement a Tungsten cluster in Amazon EC2. We'll cover the prerequisites, installing and configuring Tungsten, and best practices that are part of most production installations and proof-of-concepts. Course Topics: - Configuring MySQL and the OS for proper installation - Installing a cross-site cluster - Schema upgrade on the master database server with minimal application downtime (switch operation) - Automated failover when a MySQL database server crashes - Recovery of a failed master to a fully operational slave with a single command (recover operation) - Switching database operations to a remote site (geo-clustering, cross-site 'switch' operation) We will also discuss and demonstrate basic operations, such as adding and removing a cluster node, basic monitoring and troubleshooting, and discuss the basic failure scenarios. Learn how to quickly configure and provision highly optimized Continuent Tungsten deployments in the cloud or on-premises.

1. ©Continuent 2013
Tungsten University:
Configure & Provision
Tungsten Clusters
Je! Mace, Director of Services
Robert Hodges, CEO

2. ©Continuent 2013
About Continuent
• The leading provider of clustering and
replication for open source DBMS
• Tungsten Clustering - Commercial-grade HA,
performance scaling and data management
for MySQL
• Tungsten Replication - Flexible, high-
performance replication
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Introducing Tungsten
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Application Application
Replicator Replicator Replicator
MySQL Client API MySQL Client API
MasterSlave Slave
Existing MySQL Replication
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Application Application
Replicator Replicator Replicator
MySQL Client API MySQL Client API
MasterSlave Slave
Step 1: Replace MySQL Replication
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Application Application
Replicator Replicator Replicator
MySQL Client API MySQL Client API
Manager Manager Manager
MasterSlave Slave
Step 2: Add Manager Process
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Application Application
Replicator Replicator Replicator
Manager Manager Manager
Tungsten Connector Tungsten Connector
MasterSlave Slave
Step 3. Add Intelligent Connector
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Data Service
Application
Replicator Replicator Replicator
Application
Manager Manager Manager
Monitoringandcontrol
Monitoringandcontrol
MasterSlave Slave
Step 4. Connector Connectivity and Communication
Tungsten Connector Tungsten Connector
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Application Application
NYC

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Manual Failover
NYC London

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Evaluating Tungsten
• Con"guring servers
• Viewing cluster status
• Connectivity
• Testing cluster operations
• Next steps
• Questions
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Con"guring Servers
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Create a Security Group
• Create a security group for all Tungsten
servers
• It should be created in the AZ you will use for
servers
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All TCP traffic within the security group
All UDP traffic within the security group
All ICMP traffic within the security group
TCP port 22, 9999 and 13306 from '0.0.0.0/0'

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Launch Servers
• Create 4 EC2 servers in a single AZ
• They should be m1.large or greater
• Use the Amazon Linux AMI
• Set the root volume to be large enough for
your test data set
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Logging Into the Servers
# SSH access must be done to the ec2-user account
$> ssh ec2-user@ec2-184-72-189-135.compute-1.amazonaws.com
# Then use sudo to gain access to the root user
$ ip-184-72-189-135> sudo su -
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Set Server Hostnames
# We will use the following hostnames
# db1.nyc.tu
# db2.nyc.tu
# db1.london.tu
# db2.london.tu
$ ip-184-72-189-135> hostname db1.nyc.tu
$ ip-184-72-189-135> sed -i "/^HOSTNAME=/c
HOSTNAME=`hostname`" /etc/sysconfig/network
# You must logout completely and back in
# for the change to take effect
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Modify /etc/hosts
• Add entries to /etc/hosts on each server
• Use the private IP address for each host
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$ db1> /sbin/ifconfig eth0 | grep "inet addr"
inet addr: 10.112.24.214 Bcast:
10.112.25.255 Mask:255.255.254.0
$ db1> echo "10.112.24.214 db1.nyc.tu
10.10.219.125 db2.nyc.tu
10.10.102.83 db1.london.tu
10.112.74.196 db2.london.tu" >> /etc/hosts

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Install Software Packages
$ db1> yum -y install mysql-server which curl bc rsync wget
java-1.6.0-openjdk ruby
$ db1> rpm -i http://www.percona.com/redir/downloads/
XtraBackup/LATEST/RPM/rhel6/x86_64/percona-
xtrabackup-2.0.4-484.rhel6.x86_64.rpm
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Create MySQL Users
$ db1> mysql -e "grant all on *.* to 'tungsten'@'%' identified
by 'secret' with grant option"
$ db1> mysql -e "grant all on *.* to 'app'@'%' identified by
'secret'"
$ db1> mysql -e "revoke super on *.* from 'app'@'%'"
$ db1> mysql -e "delete from mysql.user where user=''"
$ db1> mysql -e "flush privileges"
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Rinse & Repeat
• The requirements must be completed on each
server
• Use a di!erent server-id
• Use the same SSH id_rsa and id_rsa.pub
• Full details at
https://docs.continuent.com/wiki/display/TEDOC/System
+Requirements
• Sample script available at
https://docs.continuent.com/wiki/display/TEDOC/Preparing
+EC2+Servers
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Installation
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• Installation completed from a staging
directory using tungsten-cookbook or tpm
• tungsten-cookbook runs tpm plus some
additional tests
• Staging con"guration stored in
$CONTINUENT_PROFILES

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Installation
$ db1> cd /opt/continuent/software
$ db1> wget http://dev.mysql.com/get/Downloads/Connector-J/
mysql-connector-java-5.1.22.tar.gz/from/http://cdn.mysql.com/
$ db1> tar zxf mysql-connector-java-5.1.22.tar.gz
# Upload the software to /opt/continuent/software on db1
$ db1> tar zxf continuent-tungsten-2.0.1-662.tar.gz
$ db1> cd continuent-tungsten-2.0.1-662
# See the next slides for USER_VALUES.sh content
$ db1> vi cookbook/USER_VALUES.sh
$ db1> ./cookbook/tungsten-cookbook sor --run-test
# Fix any errors and repeat the command until success
$ db1> . /opt/continuent/share/env.sh
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Installation
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• Installation completes several steps
• Copy software to each server
• Validate con"guration
• Write con"guration "les
• Start services

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Viewing Cluster Status
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$ db1> trepctl status
$ db1> cctrl -multi
Tungsten Enterprise 1.5.3 build 59
connect to 'usa@db1.nyc.tu'
usa: session established
[LOGICAL] / > ls
[LOGICAL] / > use usa
[LOGICAL] /usa > ls
[LOGICAL] /usa > use europe
[LOGICAL] /europe > ls
[LOGICAL] /europe > use world
[LOGICAL] /world > ls

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Connectivity
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$ db1> mysql -h`hostname` -P9999 -uapp -p
mysql> select @@hostname;
[LOGICAL] /usa > switch
mysql> select @@hostname;
mysql> begin;
mysql> select @@hostname;
[LOGICAL] /usa > switch
mysql> select @@hostname;

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Cluster Operations
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Switching the Master Server
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$ db1> cctrl -multi
[LOGICAL] /> use usa
[LOGICAL] /usa> switch
[LOGICAL] /usa> ls
[LOGICAL] /usa> switch to db1.nyc.tu
[LOGICAL] /usa> ls
[LOGICAL] /usa> use world
[LOGICAL] /world> ls
[LOGICAL] /world> switch to europe
[LOGICAL] /world> ls
[LOGICAL] /world> use europe
[LOGICAL] /europe> ls

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Automatic Failover
$ db1> cctrl -multi
[LOGICAL] /> use europe
[LOGICAL] /europe> ls
mysql> select @@hostname for update;
$ db1> ssh db1.london.tu sudo /sbin/service mysqld stop
[LOGICAL] /europe> ls
mysql> select @@hostname for update;
$ db1> ssh db1.london.tu sudo /sbin/service mysqld start
[LOGICAL] /europe> datasource db1.london.tu recover
[LOGICAL] /europe> ls
[LOGICAL] /europe> switch to db1.london.tu
[LOGICAL] /europe> ls
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Online Upgrades
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Rolling Upgrade and Maintenance
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Final UpgradeSwitchSlave Upgrade Slave Upgrade
1. Run backup
2. Shun slave
3. Run upgrade
4. Welcome slave
1. Shun/
upgrade/
welcome
1.Shun/
upgrade/
welcome
1.Switch
master

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Upgrade the Slaves
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[LOGICAL] /usa> switch to db1.nyc.tu
[LOGICAL] /usa> datasource db2.nyc.tu backup
[LOGICAL] /usa> datasource db2.nyc.tu shun
$ db1> mysql -hdb2.nyc.tu -P13306 -utungsten -p
mysql> # Apply backwards compatible changes to db2.nyc.tu
# If unsuccessful
[LOGICAL] /usa> datasource db2.nyc.tu restore
# Restart the process
# If successful
[LOGICAL] /usa> datasource db2.nyc.tu welcome
# Repeat the above steps for all slaves

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Upgrade the Master
[LOGICAL] /usa> switch to db2.nyc.tu
[LOGICAL] /usa> datasource db1.nyc.tu backup
[LOGICAL] /usa> datasource db1.nyc.tu shun
$ db1> mysql -hdb2.nyc.tu -P13306 -utungsten -p
mysql> # Apply backwards compatible changes to db1.nyc.tu
# If unsuccessful
[LOGICAL] /usa> datasource db1.nyc.tu restore
# Restart the process
# If successful
[LOGICAL] /usa> datasource db1.nyc.tu welcome
[LOGICAL] /usa> switch to db1.nyc.tu
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Puppet & RPM Installation
$> cat /etc/tungsten.ini
[defaults]
...
replication-password=secret
replication-port=13306
replication-user=tungsten
...
[usa]
master=db1.nyc.tu
members=db1.nyc.tu,db2.nyc.tu
...
$> rpm -i ~/continuent-tungsten-2.0.1-662.rpm
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Next Steps
• Register at http://www.continuent.com/
downloads/software
• Initiate a POC with Continuent
• Testing production hardware and data sets
• Application testing
• Integration into monitoring and alerting
• Training for operations personnel
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Wrap-Up and Questions
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Feedback
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• Send any feedback to
tu@continuent.com

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More Webinars!
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• Setup & Operate Tungsten Replicator -
Thursday, October 17 @ 10 am PT/1 pm ET
• How Gittigidiyor (Subsidiary of eBay)
Replicates in Real Time from MySQL to Oracle -
Wednesday, November 6th @ 10:00 EDT/ 15:00
BST/16:00 CEST/17:00 EEST

38. ©Continuent 2013 38
Continuent Website:
http://www.continuent.com
Tungsten Replicator 2.0:
http://code.google.com/p/tungsten-replicator
Our Blogs:
http://scale-out-blog.blogspot.com
http://datacharmer.blogspot.com
http://flyingclusters.blogspot.com
http://continuent-tungsten.blogspot.com
560 S.Winchester Blvd., Suite 500
San Jose, CA 95128
Tel +1 (866) 998-3642
Fax +1 (408) 668-1009
e-mail: sales@continuent.com