TONIGHT

Solomon Changproudly presents:MySQL Clustering

Welcome to the UUASC LA Chapter

NDB Cluster High Availability* Shared-Nothing Architecture Redundancy

Server Requirements Any machine that can run

MySQL

Server Requirements Any machine that can run

MySQL Non-Microsoft Operating

System

Server Requirements Any machine that can run

MySQL Non-Microsoft Operating

System A buttload of RAM

Types of Nodes Data Nodes

ndbd Management Nodes

ndb_mgmd API Nodes

mysqld ndb_mgm

Bits and Pieces Partition (AKA Fragment)

A portion of a table Replica

A copy of a Partition Node Group

A collection of individual data nodes

Security of Nodes

Security of Nodes Authentication: None

Security of Nodes Authentication: None Encryption: None

Security of Nodes Authentication: None Encryption: None Management and Data Nodes

are very trusting as to who or what connects to them

Transports Gigabit Ethernet

Bare recommended minimum SCI

Scalable Coherent Interconnect Infiniband

Performance Primary Key are hashes

Performance Primary Key are hashes

Hashed values determine which rows are distributed to which data nodes

Performance Primary Key are hashes

Hashed values determine which rows are distributed to which data nodes

Pushdown

Performance Primary Key are hashes

Hashed values determine which rows are distributed to which data nodes

Pushdown Spreading query work across multiple

data nodes set engine_condition_pushdown = 1

Data Node SetupIn /etc/my.cnf:[MYSQLD]ndbclusterndb-connectstring=10.0.0.152

[MYSQL_CLUSTER]ndb-connectstring=10.0.0.152

Management Node Setup config.ini sections

[ndbd] [ndb_mgmd] [mysqld]

Management Node Setup config.ini sections

[ndbd] [ndb_mgmd] [mysqld]

Sections can be blank

Management Node Setup config.ini sections

[ndbd] [ndb_mgmd] [mysqld]

Sections can be blank There can be multiple instances

of a section

SQL Node SetupJust like the Data Node Setup

In /etc/my.cnf:[MYSQLD]ndbclusterndb-connectstring=10.0.0.152

[MYSQL_CLUSTER]ndb-connectstring=10.0.0.152

SQL Node SetupThe Management Node already

knows this is a SQL node from its config.ini file

Enough TalkingIt's showtime

Cluster ReplicationCluster replication is exactly the

same as regular MySQL replication, with the exception of the Binary Log Injection Thread.

Backup and RestorationWhy would a fault-tolerant,

completely redundant system would ever need to have a backup for restoring data?

Disk-Based NDB Cluster

HA Caveat SQL Nodes