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Tungsten University: Configure & Provision Tungsten Clusters
 

Tungsten University: Configure & Provision Tungsten Clusters

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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 ...

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.

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    Tungsten University: Configure & Provision Tungsten Clusters Tungsten University: Configure & Provision Tungsten Clusters Presentation Transcript

    • ©Continuent 2013 Tungsten University:  Configure & Provision Tungsten Clusters Je! Mace, Director of Services Robert Hodges, CEO
    • ©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 2
    • ©Continuent 2013 Introducing Tungsten 3
    • ©Continuent 2013 Application Application Replicator Replicator Replicator MySQL Client API MySQL Client API MasterSlave Slave Existing MySQL Replication 4
    • ©Continuent 2013 Application Application Replicator Replicator Replicator MySQL Client API MySQL Client API MasterSlave Slave Step 1: Replace MySQL Replication 5
    • ©Continuent 2013 Application Application Replicator Replicator Replicator MySQL Client API MySQL Client API Manager Manager Manager MasterSlave Slave Step 2: Add Manager Process 6
    • ©Continuent 2013 Application Application Replicator Replicator Replicator Manager Manager Manager Tungsten Connector Tungsten Connector MasterSlave Slave Step 3. Add Intelligent Connector 7
    • ©Continuent 2013 Data Service Application Replicator Replicator Replicator Application Manager Manager Manager Monitoringandcontrol Monitoringandcontrol MasterSlave Slave Step 4. Connector Connectivity and Communication Tungsten Connector Tungsten Connector 8
    • ©Continuent 2013 Application Application NYC
    • ©Continuent 2013 10 Manual Failover NYC London
    • ©Continuent 2013 Evaluating Tungsten • Con"guring servers • Viewing cluster status • Connectivity • Testing cluster operations • Next steps • Questions 11
    • ©Continuent 2013 Con"guring Servers 12
    • ©Continuent 2013 Create a Security Group • Create a security group for all Tungsten servers • It should be created in the AZ you will use for servers 13 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'
    • ©Continuent 2013 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 14
    • ©Continuent 2013 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 - 15
    • ©Continuent 2013 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 16
    • ©Continuent 2013 Modify /etc/hosts • Add entries to /etc/hosts on each server • Use the private IP address for each host 17 $ 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
    • ©Continuent 2013 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 18
    • ©Continuent 2013 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" 19
    • ©Continuent 2013 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 20
    • ©Continuent 2013 Installation 21 • 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
    • ©Continuent 2013 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 22
    • ©Continuent 2013 Installation 23 • Installation completes several steps • Copy software to each server • Validate con"guration • Write con"guration "les • Start services
    • ©Continuent 2013 Viewing Cluster Status 24 $ 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
    • ©Continuent 2013 Connectivity 25 $ 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;
    • ©Continuent 2013 Cluster Operations 26
    • ©Continuent 2013 Switching the Master Server 27 $ 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
    • ©Continuent 2013 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 28
    • ©Continuent 2013 Online Upgrades 29
    • ©Continuent 2013 Rolling Upgrade and Maintenance 30 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
    • ©Continuent 2013 Upgrade the Slaves 31 [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
    • ©Continuent 2013 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 32
    • ©Continuent 2013 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 33
    • ©Continuent 2013 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 34
    • ©Continuent 2013 Wrap-Up and Questions 35
    • ©Continuent 2013 Feedback 36 • Send any feedback to tu@continuent.com
    • ©Continuent 2013 More Webinars! 37 • 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
    • ©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