单机部署PXC

在一台机器上安装PXC

Linux：centos 7     IP：192.168.30.221

PXC版本：Percona-XtraDB-Cluster-5.7.17-rel13-29.20.3.Linux.x86_64.ssl101.tar.gz

PXC节点：①192.168.30.221:3306     cluster_address：4030

                ②192.168.30.221:3307     cluster_address：5030

                ③192.168.30.221:3308     cluster_address：6030

 

yum -y install rsync

wget https://www.percona.com/downloads/Percona-XtraDB-Cluster-LATEST/Percona-XtraDB-Cluster-5.7.17-29.20/binary/tarball/Percona-XtraDB-Cluster-5.7.17-rel13-29.20.3.Linux.x86_64.ssl101.tar.gz

 

1、将二进制包解压，添加mysql账号，做软连接：

mkdir /opt/mysql

cd /opt/mysql

tar zxvf /data/src/Percona-XtraDB-Cluster-5.7.17-rel13-29.20.3.Linux.x86_64.ssl101.tar.gz

cd /usr/local

ln -s /opt/mysql/Percona-XtraDB-Cluster-5.7.17-rel13-29.20.3.Linux.x86_64.ssl101/ mysql

groupadd mysql

useradd -M -g mysql -s /sbin/nologin/ -d /usr/local/mysql mysql

 

2、新建文件夹请授权：

mkdir -p /data/mysql/mysql_3306/{data,logs,tmp}

mkdir -p /data/mysql/mysql_3306/logs/binlog

mkdir -p /data/mysql/mysql_3307/{data,logs,tmp}

mkdir -p /data/mysql/mysql_3307/logs/binlog

mkdir -p /data/mysql/mysql_3308/{data,logs,tmp}

mkdir -p /data/mysql/mysql_3308/logs/binlog

chown -R mysql:mysql /data/mysql/

chown -R mysql:mysql /usr/local/mysql

 

3、配置文件my.cnf

3306：

default_storage_engine=Innodb

innodb_locks_unsafe_for_binlog=1

 

#pxc on a single physical box

wsrep_cluster_address='gcomm://192.168.30.221:5030,192.168.30.221:6030'

wsrep_provider=/usr/local/mysql/lib/libgalera_smm.so

wsrep_sst_receive_address=192.168.30.221:4020

wsrep_node_incoming_address=192.168.30.221

wsrep_slave_threads=2

wsrep_cluster_name=pxc_sampson

wsrep_provider_options = "gmcast.listen_addr=tcp://192.168.30.221:4030;"

wsrep_sst_method=rsync

wsrep_sst_auth=sst:sampson

wsrep_node_name=node3306

innodb_autoinc_lock_mode=2

 

3307：

default_storage_engine=Innodb

innodb_locks_unsafe_for_binlog=1

 

#pxc on a single physical box

wsrep_cluster_address='gcomm://192.168.30.221:4030,192.168.30.221:6030'

wsrep_provider=/usr/local/mysql/lib/libgalera_smm.so

wsrep_sst_receive_address=192.168.30.221:5020

wsrep_node_incoming_address=192.168.30.221

wsrep_slave_threads=2

wsrep_cluster_name=pxc_sampson

wsrep_provider_options = "gmcast.listen_addr=tcp://192.168.30.221:5030;"

wsrep_sst_method=rsync

wsrep_sst_auth=sst:sampson

wsrep_node_name=node3307

innodb_autoinc_lock_mode=2

 

3308：

default_storage_engine=Innodb

innodb_locks_unsafe_for_binlog=1

 

#pxc on a single physical box

wsrep_cluster_address='gcomm://192.168.30.221:4030,192.168.30.221:5030'

wsrep_provider=/usr/local/mysql/lib/libgalera_smm.so

wsrep_sst_receive_address=192.168.30.221:6020

wsrep_node_incoming_address=192.168.30.221

wsrep_slave_threads=2

wsrep_cluster_name=pxc_sampson

wsrep_provider_options = "gmcast.listen_addr=tcp://192.168.30.221:6030;"

wsrep_sst_method=rsync

wsrep_sst_auth=sst:sampson

wsrep_node_name=node3308

innodb_autoinc_lock_mode=2

 

4、启动主节点：

cd /usr/local/mysql

bin/mysqld_safe --defaults-file= /data/mysql/mysql_3306/my.cnf --wsrep-new-cluster

在error.log里看到

[Note] WSREP: Shifting JOINED -> SYNCED (TO: 7)

[Note] WSREP: Waiting for SST/IST to complete.

[Note] WSREP: New cluster view: global state: f71affa6-2b55-11e7-b8db-6afbe908670d:7, view# 1: Primary, number of nodes: 1, my index: 0, protocol version 3

则启动成功，登录mysql -uroot -p

 

主节点添加账号：

grant usage on *.* to 'pxc-monitor'@'%' identified by 'pxc-monitor';

grant all privileges on *.* to 'sst'@'%' identified by 'sampson';

 

5、启动剩下的两个节点：

bin/mysqld_safe --defaults-file=/data/mysql/mysql_3307/my.cnf

查看对应的error.log，能看到

[Note] WSREP: Shifting JOINER -> JOINED (TO: 7)

[Note] WSREP: Member 1.0 (node3307) synced with group.

[Note] WSREP: Shifting JOINED -> SYNCED (TO: 7)

[Note] WSREP: Synchronized with group, ready for connections

则表示node启动并加入cluster集群成功。

 

bin/mysqld_safe --defaults-file=/data/mysql/mysql_3308/my.cnf

 

6、查看节点个数：

mysql> show global status like 'wsrep_cluster_size';

+--------------------+-------+

| Variable_name      | Value |

+--------------------+-------+

| wsrep_cluster_size | 3     |

+--------------------+-------+

1 row in set (0.02 sec)

 

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注：参考网址https://www.percona.com/doc/percona-xtradb-cluster/5.7/howtos/singlebox.html#how-to-setup-3-node-cluster-on-single-box