update mysql's script and configuration
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b24c6a928a
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@ -1,45 +1,48 @@
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[mysqld]
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# mysql 的数据目录
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datadir = /var/lib/mysql
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# binlog 目录
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log_bin = /var/lib/mysql/binlog
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# socket 文件
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socket = /var/lib/mysql/mysql.sock
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# 设置时区
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default-time_zone = '+8:00'
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# 数据库默认字符集
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character-set-server = utf8mb4
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# 数据库字符集对应一些排序等规则,注意要和 character-set-server 对应
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collation-server = utf8mb4_0900_ai_ci
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# 数据库连接相关设置
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# -------------------------------------------------------------------------------
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# 最大连接数
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# Mysql 基本配置模板
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# -------------------------------------------------------------------------------
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[mysqld]
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# GENERAL
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# -------------------------------------------------------------------------------
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server_id = 2
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datadir = /var/lib/mysql
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socket = /var/lib/mysql/mysql.sock
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pid_file = /var/lib/mysql/mysql.pid
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user = mysql
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port = 3306
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default_storage_engine = InnoDB
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default_time_zone = '+8:00'
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character_set_server = utf8mb4
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collation_server = utf8mb4_0900_ai_ci
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# LOG
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# -------------------------------------------------------------------------------
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log_error = /var/log/mysql/mysql-error.log
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slow_query_log = 1
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slow_query_log_file = /var/log/mysql/mysql-slow.log
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long_query_time = 3
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min_examined_row_limit = 100
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expire_logs_days = 7
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# InnoDB
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# -------------------------------------------------------------------------------
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innodb_buffer_pool_size = 4G
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innodb_log_file_size = 128M
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innodb_file_per_table = 1
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innodb_flush_method = O_DIRECT
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# MyIsam
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# -------------------------------------------------------------------------------
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key_buffer_size = 256M
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# OTHER
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# -------------------------------------------------------------------------------
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tmp_table_size = 32M
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max_heap_table_size = 32M
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max_connections = 10000
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# 最大错误连接数
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max_connect_errors = 10000
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# MySQL打开的文件描述符限制
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open_files_limit = 65535
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# 日志文件相关设置,一般只开启三种日志,错误日志,慢查询日志,二进制日志。普通查询日志不开启。
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# -------------------------------------------------------------------------------
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# 错误日志记录的信息
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log_error_verbosity = 2
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# 错误日志文件地址
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log-error = /var/log/mysqld.log
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# 开启慢查询
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slow_query_log = 1
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# 开启慢查询时间,此处为3秒,达到此值才记录数据
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long_query_time = 3
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# 检索行数达到此数值,才记录慢查询日志中
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min_examined_row_limit = 10
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# 慢查询日志文件地址
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slow-query-log-file = /var/log/mysqld-slow.log
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# 开启记录没有使用索引查询语句
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log_queries_not_using_indexes = 1
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# mysql清除过期日志的时间,默认值0,不自动清理,而是使用滚动循环的方式。这里设置为30天
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binlog_expire_logs_seconds = 2592000
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# 如果二进制日志写入的内容超出给定值,日志就会发生滚动。你不能将该变量设置为大于1GB或小于4096字节。 默认值是1GB。
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max_binlog_size = 1000M
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[client]
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socket = /var/lib/mysql/mysql.sock
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port = 3306
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@ -49,8 +49,10 @@ printf "${CYAN}>>>> replace settings${RESET}\n"
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cp /etc/my.cnf /etc/my.cnf.bak
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wget -N https://gitee.com/turnon/linux-tutorial/raw/master/codes/linux/soft/config/mysql/my.cnf -O /etc/my.cnf
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# 创建空的慢查询日志文件
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touch /var/log/mysqld-slow.log
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chmod 777 /var/log/mysqld-slow.log
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mkdir -p /var/log/mysql
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touch /var/log/mysql/mysql-slow.log
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chmod 777 /var/log/mysql/mysql-slow.log
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chown -R mysql:mysql /var/log/mysql
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# 设置开机启动
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printf "${CYAN}>>>> start mysqld${RESET}\n"
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@ -58,6 +60,11 @@ systemctl enable mysqld
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systemctl start mysqld
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systemctl daemon-reload
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cat >> /etc/security/limits.conf << EOF
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mysql soft nofile 65536
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mysql hard nofile 65536
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EOF
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password=$(grep "password" /var/log/mysqld.log | awk '{print $NF}')
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printf "临时密码为:${PURPLE}${password}${RESET},请登录 mysql 后重置新密码\n"
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