Setup Mariadb Galera Cluster 10 Centos 6
vi /etc/yum.repos.d/mariadb.repo
[mariadb]
name = MariaDB
baseurl = http://yum.mariadb.org/10.0/centos6-amd64
gpgkey=https://yum.mariadb.org/RPM-GPG-KEY-MariaDB
gpgcheck=1
setenforce 0
vi /etc/selinux/config
# This file controls the state of SELinux on the system.
# SELINUX= can take one of these three values:
# enforcing - SELinux security policy is enforced.
# permissive - SELinux prints warnings instead of enforcing.
# disabled - No SELinux policy is loaded.
SELINUX=disabled
# SELINUXTYPE= can take one of these two values:
# targeted - Targeted processes are protected,
# mls - Multi Level Security protection.
SELINUXTYPE=targeted
yum install MariaDB-Galera-server MariaDB-client rsync galera
/etc/init.d/mysql start
/usr/bin/mysql_secure_installation
vi /etc/my.cnf.d/server.cnf
[mariadb-10.0]
query_cache_size=0
binlog_format=ROW
default_storage_engine=innodb
innodb_autoinc_lock_mode=2
wsrep_provider=/usr/lib64/galera/libgalera_smm.so
wsrep_cluster_address="gcomm://192.168.250.137"
wsrep_cluster_name='cluster1'
wsrep_node_address='192.168.250.137'
wsrep_node_name='db1'
wsrep_sst_method=rsync
wsrep_sst_auth=root:dbpass
vi /etc/rc.local
#!/bin/sh
#
# This script will be executed *after* all the other init scripts.
# You can put your own initialization stuff in here if you don't
# want to do the full Sys V style init stuff.
touch /var/lock/subsys/local
/etc/init.d/mysql start --wsrep-new-cluster
iptables -I INPUT 5 -p tcp -m state --state NEW -m tcp --dport 3306 -j ACCEPT
iptables -I INPUT 5 -p tcp -m state --state NEW -m tcp --dport 4444 -j ACCEPT
iptables -I INPUT 5 -p tcp -m state --state NEW -m tcp --dport 4567 -j ACCEPT
iptables -I INPUT 5 -p tcp -m state --state NEW -m tcp --dport 4568 -j ACCEPT
Create MariaDB Galera Users
mysql -u root -p
MariaDB [(none)]> delete from mysql.user where user ='';
MariaDB [(none)]> grant all on *.* to 'root'@'%' identified by 'dbpass';
MariaDB [(none)]> grant usage on *.* to root@'%' identified by 'dbpass';
MariaDB [(none)]> grant all privileges on *.* to root@'%';
MariaDB [(none)]> flush privileges;
mysql -uroot -p -e "show status like 'wsrep%'"
+------------------------------+--------------------------------------+
| Variable_name | Value |
+------------------------------+--------------------------------------+
| wsrep_local_state_uuid | bd2acb32-30a6-11e7-863d-32dc104a6a9e |
| wsrep_protocol_version | 7 |
| wsrep_last_committed | 0 |
| 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 | 142 |
| 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 | 2 |
| wsrep_local_recv_queue_min | 0 |
| wsrep_local_recv_queue_avg | 0.500000 |
| wsrep_local_cached_downto | 18446744073709551615 |
| 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 | 192.168.250.137:3306 |
| wsrep_desync_count | 0 |
| wsrep_evs_delayed | |
| wsrep_evs_evict_list | |
| wsrep_evs_repl_latency | 0/0/0/0/0 |
| wsrep_evs_state | OPERATIONAL |
| wsrep_gcomm_uuid | bd2a3ca4-30a6-11e7-bbf5-d31cbeec95a8 |
| wsrep_cluster_conf_id | 1 |
| wsrep_cluster_size | 1 |
| wsrep_cluster_state_uuid | bd2acb32-30a6-11e7-863d-32dc104a6a9e |
| 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
| wsrep_provider_version | 25.3.19(r3667) |
| wsrep_ready | ON |
| wsrep_thread_count | 2 |
+------------------------------+--------------------------------------+
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