Use amoeba to configure mysql master-slave synchronization read-write separation
Experimental environment:
Three manually compiled and installed mysql, one master and two slave
masters: 192.168.88.100
slave 1: 192.168.88.103
slave 2: 192.168.88.104
Front server: 192.168.88.101
-----Do it on the main server 192.168.88.100---------------Configure the NTP server---------- //Set up the ntp service on the main server , which provides time synchronization
yum install -y ntp
vi /etc/ntp.conf
restrict 192.168.88.0 mask 255.255.255.0 nomodify notrap
server 127.127.1.0
fudge 127.127.1.0 stratum 8 //Set the level of the time server to level 8 and the top level to 0
service ntpd start
service firewalld stop
setenforce 0
Configure the MYSQL of the master server:
vi /etc/my.cnf //Configure under [mysqld]
server_id = 11
log_bin=master_bin //this is the binary log file that records operations on the master
log_slave_updates=true //allows synchronization from the server
service mysqld restart
mysql -u root -p
GRANT REPLICATION SLAVE ON . TO 'myslave'@'192.168.88.%' IDENTIFIED BY '123456'; //Authorize all databases for all slave servers
FLUSH PRIVILEGES;
show master status; //Note the value of the Position column (mine is 603) and the value of File
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--------The following configures ntp services from servers 192.168.88.103 and 192.168.88.104 and from mysql-------------------
service firewalld stop
setenforce 0
yum install -y ntpdate
ntpdate 192.168.88.100
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When offset appears, the synchronization is successful. offset value
echo ' /30 * /usr/sbin/ntpdate 192.168.88.100' >> /var/spool/cron/root //Scheduled tasks to synchronize with the master server every 30 minutes
crontab -l
Then configure mysql on the slave server:
vi /etc/my.cnf //
server_id = 22 under [mysqld] //Note here that the id value cannot be the same as the master's id, and the id of the two slave mysql cannot be the same
relay_log=relay- log-bin
relay_log_index=slave-relay-bin.index
service mysqld restart
------- Note the value of master_log pos=, use show master status on the master; check it out, note - and ----
mysql -u root
change master to master_host='192.168.88.100',master_user='myslave',master_password='123456',master_log_file='master_bin.000001',master_log_pos=900; //Track the binary file of the main mysql server
start slave ;
show slave status \G //The following two options need to be Yes
……
Slave_IO_Running: Yes
Slave_SQL_Running: Yes
……
Then verify master-slave synchronization:
------Create a new library on the master server and verify synchronization------------
mysql -u root -p
create database hello;
show databases; //The master server creates the database, view it on the slave server, and the slave server will also synchronize from time to time
----------------------------------Configure mysql read-write separation ---------
-----Configuration on frontend server (192.168.88.101)------------
service firewalld stop
setenforce 0
yum install -y ntpdate
ntpdate 192.168.88.100
echo ' /30 * /usr/sbin/ntpdate 192.168.88.100' >> /var/spool/cron/root
crontab -l
-----------Install JDK------- // amoeba is developed based on java, so the installation requires java environment
tar xf jdk-8u144-linux-x64.tar.gz
cp -rv jdk1.8.0_144/ /usr/local/java
vi /etc/profile //Set environment variables
export JAVA_HOME=/usr/local/java
export JRE_HOME=/usr/local/java/jre
export PATH=$PATH:/usr/local/java/bin
export CLASSPATH=./:/usr/local/java/lib:/usr/local/java/jre/lib
source /etc/profile
#java -version
java version "1.8.0_144" //The above appears, the java environment is successfully built
...
--------------安装amoeba------https://sourceforge.net/projects/amoeba/files/--
unzip amoeba-mysql-3.0.5-RC-distribution.zip -d /usr/local/
mv /usr/local/amoeba-mysql-3.0.5-RC/ /usr/local/amoeba
chmod -R 755 /usr/local/amoeba/
vi /usr/local/amoeba/jvm.properties
JVM_OPTIONS="-server -Xms256m -Xmx1024m -Xss196k -XX:PermSize=16m -XX:MaxPermSize=96m" //Modify 32 lines to the following parameters
JVM_OPTIONS="-server -Xms1024m -Xmx1024m -Xss256k"
------Make amoeba management script-------
vi /etc/init.d/amoeba
#!/bin/bash
#chkconfig: 35 62 62
#
export JAVA_HOME=/usr/local/java
export PATH=$JAVA_HOME/bin:$JAVA_HOME/jre/bin:$PATH
NAME=Amoeba
AMOEBA_BIN=/usr/local/amoeba/bin/launcher
SHUTDOWN_BIN=/usr/local/amoeba/bin/shutdown
PIDFILE=/usr/local/amoeba/Amoeba-MySQL.pid
SCRIPTNAME=/etc/init.d/amoeba
case "$1" in
start)
echo -n "Starting $NAME... "
$AMOEBA_BIN
echo " done"
;;
stop)
echo -n "Stoping $NAME... "
$SHUTDOWN_BIN
echo " done"
;;
restart)
$SHUTDOWN_BIN
sleep 1
$AMOEBA_BIN
;;
*)
echo "Usage: $SCRIPTNAME {start|stop|restart}"
exit 1
;;
esac
chmod +x /etc/init.d/amoeba
chkconfig --add amoeba
service amoeba start
netstat -anpt | grep 8066 //default listening on port 8066
----------------Authorize amoeba in three mysql databases respectively -------
GRANT ALL ON . TO test@'192.168.88.%' IDENTIFIED BY '123.com';
FLUSH PRIVILEGES;
--------On the front-end server----
cd /usr/local/amoeba
vi conf/amoeba.xml
---Line 28-----Set the user name and password used by the client to connect to the amoeba front-end server----
<property name="user">amoeba</property>
---- 30 lines ---------
<property name="password">123456</property>
------------------------- ------------The above configuration is used for client connection username and password-------------
---83-Remove the comment-At the same time, change the default server1 to master, and change the default servers to slaves
<property name="defaultPool">master</property>
<property name="writePool">master</property>
<property name="readPool">slaves</property>
vi conf / dbServers.xml
--26-29--Remove comments--
<property name="user">test</property>
<property name="password">123.com</property>
------主服务器地址---
43 <dbServer name="master" parent="abstractServer">
46 <property name="ipAddress">192.168.80.181</property>
--50-Slave server hostname-
<dbServer name="slave1" parent="abstractServer">
--53-Slave server address-
<property name="ipAddress">192.168.80.182</property>
----Copy related code---
<dbServer name="slave1" parent="abstractServer">
<factoryConfig>