6

我正在尝试使用本教程在我的本地机器上设置主从复制。

我快结束了，但是当我尝试mysqldump使用运行时--master-data=2出现错误

mysqldump: Error: Binlogging on server not active

我遇到的所有解决方案都说要添加log_bin = /var/log/mysql/mysql-bin.log到my.cnf我已经完成的内容中，但似乎并没有解决问题。

这是我的my.cnf文件：

[client]
port            = 3306
socket          = /var/run/mysqld/mysqld.sock

[mysqld_safe]
pid-file        = /var/run/mysqld/mysqld.pid
socket          = /var/run/mysqld/mysqld.sock
nice            = 0

[mysqld_multi]
mysqld      = /usr/bin/mysqld_safe
mysqladmin  = /usr/bin/mysqladmin
user        = multi_admin
password    = multipass

[mysqld2]
user            = mysql
pid-file        = /var/run/mysqld/mysqld_slave.pid
socket          = /var/run/mysqld/mysqld_slave.sock
port            = 3307
basedir         = /usr
datadir         = /var/lib/mysql_slave
tmpdir          = /tmp
lc-messages-dir = /usr/share/mysql
explicit_defaults_for_timestamp
server-id   = 2
relay-log   = /var/log/mysql_slave/relay-bin
relay-log-index = /var/log/mysql_slave/relay-bin.index
master-info-file = /var/log/mysql_slave/master.info
relay-log-info-file = /var/log/mysql_slave/relay-log.info
read_only   = 1

[mysqld1]
user            = mysql
pid-file        = /var/run/mysqld/mysqld.pid
socket          = /var/run/mysqld/mysqld.sock
port            = 3305
basedir         = /usr
datadir         = /var/lib/mysql
tmpdir          = /tmp
lc-messages-dir = /usr/share/mysql
explicit_defaults_for_timestamp
server-id   = 1
log_bin     = /var/log/mysql/mysql-bin.log
innodb_flush_log_at_trx_commit = 1
sync_binlog = 1
binlog-format = ROW

# Instead of skip-networking the default is now to listen only on
# localhost which is more compatible and is not less secure.
bind-address = 0.0.0.0

log-error       = /var/log/mysql/error.log

# Disabling symbolic-links is recommended to prevent assorted security risks
symbolic-links=0

# * IMPORTANT: Additional settings that can override those from this file!
#   The files must end with '.cnf', otherwise they'll be ignored.

!includedir /etc/mysql/conf.d/
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2 回答 2

1

我可以建议您放弃 mysql_multi 并使用 Docker 解决方案。这使您可以拥有单独的 my.cnf 文件，这可能是问题的一部分。

甚至可能已经为 Master 和 Slave 设置了一对 Docker 镜像。我很确定有 Galera 集群。

我想您只是为了实验而在单个服务器上设置 MS？为生产这样做实际上是没有用的。

于 2017-07-25T17:52:28.493 回答
0

您可以使用单个 mysql 映像来执行此操作。使用下面的 docker-compose 文件

码头工人-compose.yml

version: '2'
services:
  mysqlmaster:
    image: mysql:5.7.15
    environment:
      - "MYSQL_ROOT_PASSWORD=root"
    volumes:
      - ./data/mysql-master:/var/lib/mysql/
      - ./config/mysql-master:/etc/mysql/conf.d/
  mysqlslave:
    image: mysql:5.7
    environment:
      - "MYSQL_ROOT_PASSWORD=root"
    volumes:
      - ./data/mysql-slave:/var/lib/mysql/
      - ./config/mysql-slave:/etc/mysql/conf.d/
  mysqlconfigure:
    image: mysql:5.7.15
    environment:
      - "MYSQL_SLAVE_PASSWORD=root"
      - "MYSQL_MASTER_PASSWORD=root"
      - "MYSQL_ROOT_PASSWORD=root"
      - "MYSQL_REPLICATION_USER=repl"
      - "MYSQL_REPLICATION_PASSWORD=repl"
    volumes:
      - ./mysql_connector.sh:/tmp/mysql_connector.sh
    command: /bin/bash -x /tmp/mysql_connector.sh

mysql_connector.sh

#!/bin/bash
BASE_PATH=$(dirname $0)

echo "Waiting for mysql to get up"
# Give 60 seconds for master and slave to come up
sleep 60

echo "Create MySQL Servers (master / slave repl)"
echo "-----------------"


echo "* Create replication user"

mysql --host mysqlslave -uroot -p$MYSQL_SLAVE_PASSWORD -AN -e 'STOP SLAVE;';
mysql --host mysqlslave -uroot -p$MYSQL_MASTER_PASSWORD -AN -e 'RESET SLAVE ALL;';

mysql --host mysqlmaster -uroot -p$MYSQL_MASTER_PASSWORD -AN -e "CREATE USER '$MYSQL_REPLICATION_USER'@'%';"
mysql --host mysqlmaster -uroot -p$MYSQL_MASTER_PASSWORD -AN -e "GRANT REPLICATION SLAVE ON *.* TO '$MYSQL_REPLICATION_USER'@'%' IDENTIFIED BY '$MYSQL_REPLICATION_PASSWORD';"
mysql --host mysqlmaster -uroot -p$MYSQL_MASTER_PASSWORD -AN -e 'flush privileges;'


echo "* Set MySQL01 as master on MySQL02"

MYSQL01_Position=$(eval "mysql --host mysqlmaster -uroot -p$MYSQL_MASTER_PASSWORD -e 'show master status \G' | grep Position | sed -n -e 's/^.*: //p'")
MYSQL01_File=$(eval "mysql --host mysqlmaster -uroot -p$MYSQL_MASTER_PASSWORD -e 'show master status \G'     | grep File     | sed -n -e 's/^.*: //p'")
MASTER_IP=$(eval "getent hosts mysqlmaster|awk '{print \$1}'")
echo $MASTER_IP
mysql --host mysqlslave -uroot -p$MYSQL_SLAVE_PASSWORD -AN -e "CHANGE MASTER TO master_host='mysqlmaster', master_port=3306, \
        master_user='$MYSQL_REPLICATION_USER', master_password='$MYSQL_REPLICATION_PASSWORD', master_log_file='$MYSQL01_File', \
        master_log_pos=$MYSQL01_Position;"

echo "* Set MySQL02 as master on MySQL01"

MYSQL02_Position=$(eval "mysql --host mysqlslave -uroot -p$MYSQL_SLAVE_PASSWORD -e 'show master status \G' | grep Position | sed -n -e 's/^.*: //p'")
MYSQL02_File=$(eval "mysql --host mysqlslave -uroot -p$MYSQL_SLAVE_PASSWORD -e 'show master status \G'     | grep File     | sed -n -e 's/^.*: //p'")

SLAVE_IP=$(eval "getent hosts mysqlslave|awk '{print \$1}'")
echo $SLAVE_IP
mysql --host mysqlmaster -uroot -p$MYSQL_MASTER_PASSWORD -AN -e "CHANGE MASTER TO master_host='mysqlslave', master_port=3306, \
        master_user='$MYSQL_REPLICATION_USER', master_password='$MYSQL_REPLICATION_PASSWORD', master_log_file='$MYSQL02_File', \
        master_log_pos=$MYSQL02_Position;"

echo "* Start Slave on both Servers"
mysql --host mysqlslave -uroot -p$MYSQL_SLAVE_PASSWORD -AN -e "start slave;"

echo "Increase the max_connections to 2000"
mysql --host mysqlmaster -uroot -p$MYSQL_MASTER_PASSWORD -AN -e 'set GLOBAL max_connections=2000';
mysql --host mysqlslave -uroot -p$MYSQL_SLAVE_PASSWORD -AN -e 'set GLOBAL max_connections=2000';

mysql --host mysqlslave -uroot -p$MYSQL_MASTER_PASSWORD -e "show slave status \G"

echo "MySQL servers created!"
echo "--------------------"
echo
echo Variables available fo you :-
echo
echo MYSQL01_IP       : mysqlmaster
echo MYSQL02_IP       : mysqlslave

您可以从我的 git repo https://github.com/tarunlalwani/docker-compose-mysql-master-slave获取上述代码

PS：内容取自我在http://tarunlalwani.com/post/mysql-master-slave-using-docker/上的文章

于 2017-07-25T18:17:47.460 回答