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How to setup 3 node cluster in EC2 enviroment

This is how to setup 3-node cluster in EC2 enviroment.

Assume you are running m1.xlarge instances with OS Red Hat Enterprise Linux 6.1 64-bit.

Install XtraDB Cluster from RPM:

  1. Install Percona’s regular and testing repositories:

    rpm -Uhv
    rpm -Uhv
  2. Install Percona XtraDB Cluster packages:

    yum install Percona-XtraDB-Cluster-server-55 Percona-XtraDB-Cluster-client-55 Percona-XtraDB-Cluster-galera-2
  3. Create data directories:

    mkdir -p /mnt/data
    mysql_install_db --datadir=/mnt/data --user=mysql
  4. Stop firewall. Cluster requires couple TCP ports to operate. Easiest way:

    service iptables stop

If you want to open only specific ports, you need to open 3306, 4444, 4567, 4568 ports. For example for 4567 port (substitute by your IP):

iptables -A INPUT -i eth0 -p tcp -m tcp --source --dport 4567 -j ACCEPT
  1. Create /etc/my.cnf files.

On the first node (assume IP






On the second node (assume IP






On the third (and following nodes) configuration is similar, with the following change:

  1. Start the Percona XtraDB Cluster

On the first node:

[root@node1 ~]# /etc/init.d/mysql bootstrap-pxc

You should be able to see in console (or in error-log file):

140113 12:23:43 [Note] /usr/sbin/mysqld: ready for connections.
Version: '5.5.34-55'  socket: '/var/lib/mysql/mysql.sock'  port: 3306  Percona XtraDB Cluster (GPL), wsrep_25.9.r3928

On the second (and following nodes):

[root@node2 ~]# /etc/init.d/mysql start

You should be able to see in console (or in error-log file):

140113 17:29:34 [Note] WSREP: New cluster view: global state: fb031d6e-7c4c-11e3-bf3a-ae73fcffc079:0, view# 8: Primary, number of nodes: 2, my index: 1, protocol version 2
140113 17:29:34 [Warning] WSREP: Gap in state sequence. Need state transfer.
140113 17:29:36 [Note] WSREP: Running: 'wsrep_sst_rsync --role 'joiner' --address '' --auth '' --datadir '/mnt/data/' --defaults-file '/etc/my.cnf' --parent '29627''
cat: /var/lib/mysql// No such file or directory
140113 17:29:36 [Note] WSREP: Prepared SST request: rsync|
140113 17:29:36 [Note] WSREP: wsrep_notify_cmd is not defined, skipping notification.
140113 17:29:36 [Note] WSREP: Assign initial position for certification: 0, protocol version: 2
140113 17:29:36 [Warning] WSREP: Failed to prepare for incremental state transfer: Local state UUID (00000000-0000-0000-0000-000000000000) does not match group state UUID (fb031d6e-7c4c-11e3-bf3a-ae73fcffc079): 1 (Operation not permitted)
at galera/src/replicator_str.cpp:prepare_for_IST():445. IST will be unavailable.
140113 17:29:36 [Note] WSREP: Node 1 (node1) requested state transfer from '*any*'. Selected 0 (node1)(SYNCED) as donor.
140113 17:29:36 [Note] WSREP: Shifting PRIMARY -> JOINER (TO: 0)
140113 17:29:36 [Note] WSREP: Requesting state transfer: success, donor: 0
140113 17:29:39 [Note] WSREP: 0 (node1): State transfer to 1 (node1) complete.
140113 17:29:39 [Note] WSREP: Member 0 (node1) synced with group.
WSREP_SST: [INFO] Joiner cleanup. (20140113 17:29:39.792)
WSREP_SST: [INFO] Joiner cleanup done. (20140113 17:29:40.302)
140113 17:29:40 [Note] WSREP: SST complete, seqno: 0
140113 17:29:40 [Note] Plugin 'FEDERATED' is disabled.
140113 17:29:40 InnoDB: The InnoDB memory heap is disabled
140113 17:29:40 InnoDB: Mutexes and rw_locks use GCC atomic builtins
140113 17:29:40 InnoDB: Compressed tables use zlib 1.2.3
140113 17:29:40 InnoDB: Using Linux native AIO
140113 17:29:40 InnoDB: Initializing buffer pool, size = 128.0M
140113 17:29:40 InnoDB: Completed initialization of buffer pool
140113 17:29:40 InnoDB: highest supported file format is Barracuda.
InnoDB: Log scan progressed past the checkpoint lsn 1598437
140113 17:29:40  InnoDB: Database was not shut down normally!
InnoDB: Starting crash recovery.
InnoDB: Reading tablespace information from the .ibd files...
InnoDB: Restoring possible half-written data pages from the doublewrite
InnoDB: buffer...
InnoDB: Doing recovery: scanned up to log sequence number 1598607
140113 17:29:40  InnoDB: Waiting for the background threads to start
140113 17:29:41 Percona XtraDB ( 5.5.34-rel32.0 started; log sequence number 1598607
140113 17:29:41 [Note] Event Scheduler: Loaded 0 events
140113 17:29:41 [Note] WSREP: Signalling provider to continue.
140113 17:29:41 [Note] WSREP: SST received: fb031d6e-7c4c-11e3-bf3a-ae73fcffc079:0
140113 17:29:41 [Note] /usr/sbin/mysqld: ready for connections.
Version: '5.5.34-55'  socket: '/var/lib/mysql/mysql.sock'  port: 3306  Percona XtraDB Cluster (GPL), wsrep_25.9.r3928
140113 17:29:41 [Note] WSREP: 1 (node1): State transfer from 0 (node1) complete.
140113 17:29:41 [Note] WSREP: Shifting JOINER -> JOINED (TO: 0)
140113 17:29:41 [Note] WSREP: Member 1 (node1) synced with group.
140113 17:29:41 [Note] WSREP: Shifting JOINED -> SYNCED (TO: 0)
140113 17:29:41 [Note] WSREP: Synchronized with group, ready for connections
140113 17:29:41 [Note] WSREP: wsrep_notify_cmd is not defined, skipping notification.

When all nodes are in SYNCED stage your cluster is ready!

  1. Connect to database on any node and create database:

    $ mysql -uroot
    > CREATE DATABASE hello_tom;

The new database will be propagated to all nodes.


This documentation is developed in Launchpad as part of the Percona XtraDB Cluster 5.5.
If you spotted inaccuracies, errors, don't understood it or you think something is missing or should be improved, please file a bug.
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