编译安装mariadb+gelera,部署仲裁节点,之前弄过一次yum安装的MariaDB+Galera,其实编译也很简单,增加一些参数就行,工作中需要折腾了我两三天吧估计，编译命令整错了导致没编译上，记录一下。

编译MariaDB

编译mariadb需要用到cmake,gcc,c++之类的环境
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yum install -y cmake ncurses-devel gcc-c++
下载MariaDB源码包及gelera

MariaDB:https://downloads.mariadb.com/MariaDB/mariadb-10.1.6/source/mariadb-10.1.6.tar.gz

gelera:http://releases.galeracluster.com/galera-3/centos/7/x86_64/galera-3-25.3.29-1.el7.x86_64.rpm

直接解压并且编译

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tar -xvf mariadb-10.1.6.tar.gz

编译命令

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cmake \
-DCMAKE_INSTALL_PREFIX=/opt/meethong/mariadb \
-DDEFAULT_SYSCONFDIR=/opt/meethong/mariadb \
-DMYSQL_DATADIR=/opt/meethong/mariadb/data \
-DMYSQL_TCP_PORT=8102 \
-DMYSQL_UNIX_ADDR=/opt/meethong/mariadb/data/mysql.sock \
-DEXTRA_CHARSETS=all \
-DDEFAULT_CHARSET=utf8 \
-DDEFAULT_COLLATION=utf8_general_ci \
-DWITH_READLINE=1 \
-DWITH_MYISAM_STORAGE_ENGINE=1 \
-DWITH_INNOBASE_STORAGE_ENGINE=1 \
-DWITH_MEMORY_STORAGE_ENGINE=1 \
-DENABLED_LOCAL_INFILE=1 \
-DWITH_SSL=system \
-DWITH_ZLIB=system \
-DWITH_LIBWRAP=0 \
-DWITH_WSREP=ON \
-DWITH_INNODB_DISALLOW_WRITES=ON \
--------
执行完camke 执行make
make & make install

配置集群

安装galera-3-25.3.29-1.el7.x86_64

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rpm  -ivh galera-3-25.3.29-1.el7.x86_64.rpm --nodeps --force
[root@demo ~]# rpm -qpl galera-3-25.3.29-1.el7.x86_64.rpm ##查看这个包的安装路径
警告：galera-3-25.3.29-1.el7.x86_64.rpm: 头V4 RSA/SHA512 Signature, 密钥 ID bc19ddba: NOKEY
/etc/sysconfig/garb
/usr/bin/garb-systemd
/usr/bin/garbd
/usr/lib/systemd/system/garb.service
/usr/lib64/galera-3
/usr/lib64/galera-3/libgalera_smm.so
/usr/share/doc/galera-3
/usr/share/doc/galera-3/COPYING
/usr/share/doc/galera-3/LICENSE.asio
/usr/share/doc/galera-3/LICENSE.chromium
/usr/share/doc/galera-3/LICENSE.crc32c
/usr/share/doc/galera-3/README
/usr/share/doc/galera-3/README-MySQL
/usr/share/man/man8/garbd.8.gz
[root@demo ~]# 

配置my.cnf

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vim /opt/meethong/mariadb/my.cnf #拉到最后把这段复制进去
[galera]
wsrep_on=ON
wsrep_provider=/usr/lib64/galera-3/libgalera_smm.so#galera的库文件的地址
wsrep_cluster_address="gcomm://192.168.0.190,192.168.0.189"#各节点的ip
wsrep_node_name=demo#节点主机名
wsrep_cluster_name=galera_cluster
wsrep_node_address=192.168.0.189#节点ip
binlog_format=row#二进制日志设置为行模式  row （安全性最高，性能最低）
default_storage_engine=InnoDB#使用的默认引擎 innoDB  支持事务
innodb_autoinc_lock_mode=2#2为性能最好

配置下log日志文件地址
[mysqld]
log-error       =/opt/eetrust/mmeethong/data/mariadb.log

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第一台用这个命令启动
service mysqld  bootstrap
有错误就差看下日志,其他节点启动用这个
service mysqld  start

仲裁节点配置

我的测试环境为两台mariadb 一台仲裁服务仲裁并没有安装MariaDB

安装galera-3-25.3.29-1.el7.x86_64 他的配置文件是**/etc/sysconfig/garb**

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[root@localhost ~]# more /etc/sysconfig/garb
# Copyright (C) 2012 Codership Oy
# This config file is to be sourced by garb service script.

# A comma-separated list of node addresses (address[:port]) in the cluster
# GALERA_NODES=""

# Galera cluster name, should be the same as on the rest of the nodes.
# GALERA_GROUP=""

# Optional Galera internal options string (e.g. SSL settings)
# see http://galeracluster.com/documentation-webpages/galeraparameters.html
# GALERA_OPTIONS=""

# Log file for garbd. Optional, by default logs to syslog
# LOG_FILE=""

GALERA_NODES="192.168.0.189:4567,192.168.0.190:4567" # 这里是两节点的地址
GALERA_GROUP="galera_cluster"  # 这里的group名称保持与两节点的wsrep_cluster_name属性一致
LOG_FILE="/var/log/garb.log"

启停命令

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[root@localhost ~]# systemctl stop garb 
[root@localhost ~]# systemctl start garb

查看集群节点

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mysql> show status like 'wsrep_cluster_size';
+--------------------+-------+
| Variable_name      | Value |
+--------------------+-------+
| wsrep_cluster_size | 3     |
+--------------------+-------+
1 row in set

MariaDB Galera编译安装

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