/etc/init.d/mysql stop
rpm -qa | grep Percona-Server | grep -v compat |xargs rpm -e --nodeps
安装Percona XtraDB Cluster 5.6 (所有节点安装)
yum -y install Percona-XtraDB-Cluster-server-56 Percona-XtraDB-Cluster-client-56 Percona-XtraDB-Cluster-galera-3
添加 XtraDB Cluster 的支持，(所有节点安装)
vim /etc/my.cnf
在[mysqld]模块下面增加下面内容:
# xtradb cluster settings
binlog_format = ROW
wsrep_cluster_name = PXC
wsrep_cluster_address = gcomm://192.168.3.81,192.168.3.82,192.168.3.83
wsrep_node_address = 192.168.3.81 //注意，每台服务器需要将 wsrep_node_address 设置为本机的IP地址或主机名。
wsrep_provider = /usr/lib64/libgalera_smm.so
wsrep_sst_method = rsync
innodb_locks_unsafe_for_binlog = 1
innodb_autoinc_lock_mode = 2
default_storage_engine=InnoDB
初始化第一个Node:
/etc/init.d/mysql bootstrap-pxc //第一个节点才使用
mysql> show global status like 'wsrep%';
+------------------------------+--------------------------------------+
| Variable_name | Value |
+------------------------------+--------------------------------------+
| wsrep_local_state_uuid | fdfec3ab-d9e8-11e4-94aa-ae45256a81fb |
| wsrep_protocol_version | 7 |
| wsrep_last_committed | 2 |
| wsrep_replicated | 0 |
| wsrep_replicated_bytes | 0 |
| wsrep_repl_keys | 0 |
| wsrep_repl_keys_bytes | 0 |
| wsrep_repl_data_bytes | 0 |
| wsrep_repl_other_bytes | 0 |
| wsrep_received | 2 |
| wsrep_received_bytes | 141 |
| wsrep_local_commits | 0 |
| wsrep_local_cert_failures | 0 |
| wsrep_local_replays | 0 |
| wsrep_local_send_queue | 0 |
| wsrep_local_send_queue_max | 1 |
| wsrep_local_send_queue_min | 0 |
| wsrep_local_send_queue_avg | 0.000000 |
| wsrep_local_recv_queue | 0 |
| wsrep_local_recv_queue_max | 1 |
| wsrep_local_recv_queue_min | 0 |
| wsrep_local_recv_queue_avg | 0.000000 |
| wsrep_local_cached_downto | 0 |
| wsrep_flow_control_paused_ns | 0 |
| wsrep_flow_control_paused | 0.000000 |
| wsrep_flow_control_sent | 0 |
| wsrep_flow_control_recv | 0 |
| wsrep_cert_deps_distance | 0.000000 |
| wsrep_apply_oooe | 0.000000 |
| wsrep_apply_oool | 0.000000 |
| wsrep_apply_window | 0.000000 |
| wsrep_commit_oooe | 0.000000 |
| wsrep_commit_oool | 0.000000 |
| wsrep_commit_window | 0.000000 |
| wsrep_local_state | 4 |
| wsrep_local_state_comment | Synced |
| wsrep_cert_index_size | 0 |
| wsrep_causal_reads | 0 |
| wsrep_cert_interval | 0.000000 |
| wsrep_incoming_addresses | 192.168.3.81:3306 |
| wsrep_evs_delayed | |
| wsrep_evs_evict_list | |
| wsrep_evs_repl_latency | 0/0/0/0/0 |
| wsrep_evs_state | OPERATIONAL |
| wsrep_gcomm_uuid | 597ae492-dcc6-11e4-ba30-e6dfd92be1c6 |
| wsrep_cluster_conf_id | 1 |
| wsrep_cluster_size | 1 |
| wsrep_cluster_state_uuid | fdfec3ab-d9e8-11e4-94aa-ae45256a81fb |
| wsrep_cluster_status | Primary |
| wsrep_connected | ON |
| wsrep_local_bf_aborts | 0 |
| wsrep_local_index | 0 |
| wsrep_provider_name | Galera |
| wsrep_provider_vendor | Codership Oy <info@codership.com> |
| wsrep_provider_version | 3.9(r93aca2d) |
| wsrep_ready | ON |
+------------------------------+--------------------------------------+
参数 "wsrep_cluster_size" 为 1，因为目前Cluster中只有一个Node。