张小白教你使用OGG实现Oracle 19C到MySQL 5.7的数据同步（2）

（三）在MySQL端安装OGG for MySQL

卸载CentOS自带的mariadb：

rpm -qa | grep mariadb

rpm -e --nodeps mariadb-server-5.5.68-1.el7.x86_64 mariadb-5.5.68-1.el7.x86_64 mariadb-libs-5.5.68-1.el7.x86_64

安装MySQL：

cd /usr/local

wget https://cdn.mysql.com/Downloads/MySQL-5.7/mysql-5.7.37-el7-x86_64.tar.gz

解压：

tar -zxvf mysql-*.gz

mv mysql-5.7.37-el7-x86_64 mysql

设置权限：

chown -R mysql:mysql /usr/local/mysql

chmod -R 755 /usr/local/mysql

mkdir -p /data/mysql/data

mkdir -p /data/mysql/logs

mkdir -p /data/mysql/tmp

chown -R mysql:mysql /data/mysql

编辑 /etc/my.cnf 文件：

内容如下：

[client]port = 3306socket = /data/mysql/tmp/mysql.sock[mysqld]user = mysqlbasedir = /usr/local/mysql datadir = /data/mysql/data port = 3306 socket = /data/mysql/tmp/mysql.sockpid-file = /data/mysql/tmp/mysqld.pidtmpdir = /data/mysql/tmp skip_name_resolve = 1symbolic-links=0max_connections = 2000group_concat_max_len = 1024000sql_mode = NO_AUTO_CREATE_USER,NO_ENGINE_SUBSTITUTIONlower_case_table_names = 1log_timestamps=SYSTEMcharacter-set-server = utf8interactive_timeout = 1800 wait_timeout = 1800max_allowed_packet = 32Mbinlog_cache_size = 4Msort_buffer_size = 2Mread_buffer_size = 4Mjoin_buffer_size = 4Mtmp_table_size = 96Mmax_heap_table_size = 96Mmax_length_for_sort_data = 8096#logsserver-id = 1003306log-error = /data/mysql/logs/error.logslow_query_log = 1slow_query_log_file = /data/mysql/logs/slow.loglong_query_time = 3log-bin = /data/mysql/logs/binlogbinlog_format = rowexpire_logs_days = 15log_bin_trust_function_creators = 1relay-log = /data/mysql/logs/relay-binrelay-log-recovery = 1 relay_log_purge = 1 #innodb innodb_file_per_table = 1innodb_log_buffer_size = 16Minnodb_log_file_size = 256Minnodb_log_files_in_group = 2innodb_io_capacity = 2000innodb_io_capacity_max = 4000innodb_flush_neighbors = 0innodb_flush_method = O_DIRECTinnodb_autoinc_lock_mode = 2innodb_read_io_threads = 8innodb_write_io_threads = 8innodb_buffer_pool_size = 2G

将mysql设置为linux服务：

cd /usr/local/mysql/support-files

cp mysql.server /etc/init.d/mysql

编辑 /etc/init.d/mysql 文件：

设置以下两行：

basedir=/usr/local/mysql
datadir=/data/mysql/data

chkconfig --add mysql

chkconfig --list

编辑环境变量：

echo "PATH=$PATH:/usr/local/mysql/bin " >> /etc/profile

source /etc/profile

rpm -qa|grep libaio

如果没有，则需要安装：yum install libaio-devel.x86_64

/usr/local/mysql/bin/mysqld --initialize --user=mysql --basedir=/usr/local/mysql --datadir=/data/mysql/data

more /data/mysql/logs/error.log | grep password

重启MySQL:

service stop mysql

service start mysql

得使用

systemctl restart mysql

systemctl status mysql

登录：

mysql -u root -p

输入前面的密码：BOc:CUr?S0aj

修改root密码：

alter user 'root'@'localhost' identified by 'zhanghui';

flush privileges;

quit退出命令行。

ln -s /usr/local/mysql/bin/mysql /usr/bin/mysql

使用新密码zhanghui登录：

mysql -u root -p

create user 'ogg'@'%' identified by 'ogg';

grant all on *.* to 'ogg'@'%';

打开 https://www.oracle.com/middleware/technologies/goldengate-downloads.html

找到 Oracle GoldenGate 21.3.0.0.0 for MySQL-compatible Databases on Linux x86-64 下载：

使用root登录

创建目的端ogg用户:ogg2

useradd ogg2

passwd ogg2

su - ogg2

切换到ogg2用户：su - ogg2

将ogg for mysql安装包 传到/home/ogg2下：

unzip -d ~ ./213000_ggs_Linux_x64_MySQL_64bit.zip

切换到root用户

mkdir /opt/ogg/target_endpoint

chown -R ogg2 /opt/ogg/target_endpoint

切换回ogg2用户：

tar -xvf ggs_Linux_x64_MySQL_64bit.tar -C /opt/ogg/target_endpoint

编辑 ~/.bashrc文件：

export JAVA_HOME=$HOME/jdk1.8.0_141export PATH=$JAVA_HOME/bin:$PATHexport OGG_HOME=/opt/ogg/target_endpointexport LD_LIBRARY_PATH=$JAVA_HOME/jre/lib/amd64:$JAVA_HOME/jre/lib/amd64/server:$JAVA_HOME/jre/lib/amd64/libjsig.so:$JAVA_HOME/jre/lib/amd64/server/libjvm.so:$OGG_HOME/lib:$HOME/libsexport PATH=$OGG_HOME:$PATH

source ~/.bashrc使其生效。

（未完待续）