今天又新接触了一些mysql读写分离的集群配置,以前总是手工配置,今天抽时间写了个自动安装mysql的脚本,以后方面使用
#!/bin/bash #Auto install mysql for centos 6.X #author merci #定义版本变量 mysql_version='5.6.40' #定义mysql数据存放目录 mysql_datadir='/data/mysql' #定义mysql安装目录 mysql_install_dir='/usr/local/mysql' #mysql初始密码 mysql_pass='sulao.cn' #安装基本依赖包 yum -y -q install wget gcc gcc-c++ ncurses* cmake perl perl-devel autoconf #下载mysql源码 wget http://mirrors.ustc.edu.cn/mysql-ftp/Downloads/MySQL-5.6/mysql-${mysql_version}.tar.gz #安装mysql groupadd mysql useradd -g mysql mysql -s /sbin/nologin mkdir -p ${mysql_datadir} chown -R mysql:mysql ${mysql_datadir} mkdir -p ${mysql_install_dir} tar -zxvf mysql-${mysql_version}.tar.gz cd mysql-${mysql_version} cmake . -DCMAKE_INSTALL_PREFIX=${mysql_install_dir} \ -DMYSQL_DATADIR=${mysql_datadir} \ -DSYSCONFDIR=/etc make && make install cd ${mysql_install_dir} rm -rf /etc/my.cnf >/dev/null cp ./support-files/my-default.cnf /etc/my.cnf #sed -i "s@^\# datadir.*\$@datadir = ${mysql_datadir}@g" /etc/my.cnf cat > /etc/my.cnf << EOF [client] port = 3306 socket = /tmp/mysql.sock default-character-set = utf8mb4 [mysql] prompt="MySQL [\\d]> " no-auto-rehash [mysqld] port = 3306 socket = /tmp/mysql.sock basedir = ${mysql_install_dir} datadir = ${mysql_datadir} pid-file = ${mysql_datadir}/mysql.pid user = mysql bind-address = 0.0.0.0 server-id = 1 init-connect = 'SET NAMES utf8mb4' character-set-server = utf8mb4 skip-name-resolve #skip-networking back_log = 300 max_connections = 1000 max_connect_errors = 6000 open_files_limit = 65535 table_open_cache = 128 max_allowed_packet = 500M binlog_cache_size = 1M max_heap_table_size = 8M tmp_table_size = 16M read_buffer_size = 2M read_rnd_buffer_size = 8M sort_buffer_size = 8M join_buffer_size = 8M key_buffer_size = 4M thread_cache_size = 8 query_cache_type = 1 query_cache_size = 8M query_cache_limit = 2M ft_min_word_len = 4 log_bin = mysql-bin binlog_format = mixed expire_logs_days = 7 log_error = ${mysql_datadir}/mysql-error.log slow_query_log = 1 long_query_time = 1 slow_query_log_file = ${mysql_datadir}/mysql-slow.log performance_schema = 0 #lower_case_table_names = 1 skip-external-locking default_storage_engine = InnoDB innodb_file_per_table = 1 innodb_open_files = 500 innodb_buffer_pool_size = 64M innodb_write_io_threads = 4 innodb_read_io_threads = 4 innodb_thread_concurrency = 0 innodb_purge_threads = 1 innodb_flush_log_at_trx_commit = 2 innodb_log_buffer_size = 2M innodb_log_file_size = 32M innodb_log_files_in_group = 3 innodb_max_dirty_pages_pct = 90 innodb_lock_wait_timeout = 120 bulk_insert_buffer_size = 8M myisam_sort_buffer_size = 8M myisam_max_sort_file_size = 10G myisam_repair_threads = 1 interactive_timeout = 28800 wait_timeout = 28800 [mysqldump] quick max_allowed_packet = 500M [myisamchk] key_buffer_size = 8M sort_buffer_size = 8M read_buffer = 4M write_buffer = 4M EOF #初始化数据库 ./scripts/mysql_install_db --user=mysql #以下开机器启动配置适合centos6,如果是centos7复制到上面初始化数据库结束 cp ./support-files/mysql.server /etc/rc.d/init.d/mysqld chmod 755 /etc/init.d/mysqld chkconfig mysqld on #加入环境变量 echo "export PATH=${mysql_install_dir}/bin:\$PATH" >> /etc/profile #. /etc/profile ln -s ${mysql_install_dir}/lib/mysql /usr/lib/mysql ln -s ${mysql_install_dir}/include/mysql /usr/include/mysql service mysqld start #修改mysql默认密码 ${mysql_install_dir}/bin/mysql -e "update mysql.user set password=password(\"${mysql_pass}\") where user='root';" ${mysql_install_dir}/bin/mysql -e "flush privileges;" ${mysql_install_dir}/bin/mysql -uroot -p${mysql_pass} -e "drop database test;" ${mysql_install_dir}/bin/mysql -uroot -p${mysql_pass} -e "reset master;" service mysqld restart