本地数据库MySQL配置文件用于设置单个MySQL实例的参数，而本地集群配置文件则用于配置多个MySQL实例之间的通信和负载均衡。

本地数据库MySQL配置文件：

1、基本配置

[mysqld]

# 设置MySQL服务器的基本设置

basedir = /usr/local/mysql

datadir = /var/lib/mysql

port = 3306

tmpdir = /tmp

# 设置字符集编码

charactersetserver = utf8mb4

collationserver = utf8mb4_unicode_ci

2、日志配置

[mysqld]

# 设置错误日志文件路径和级别

logerror = /var/log/mysql/error.log

logerrorverbosity = 2

# 设置慢查询日志文件路径和级别

slow_query_log = 1

slow_query_log_file = /var/log/mysql/slow.log

long_query_time = 2

3、InnoDB配置

[mysqld]

# 设置InnoDB缓冲池大小

innodb_buffer_pool_size = 1G

# 设置InnoDB日志文件路径和级别

innodb_log_file_size = 512M

innodb_log_buffer_size = 64M

innodb_flush_log_at_trx_commit = 1

innodb_lock_wait_timeout = 50

本地集群配置文件：

1、主节点配置

[mysqld]

# 设置主节点唯一标识符，用于区分其他从节点

serverid = 1

# 设置主节点二进制日志文件路径和保留时间

logbin = /var/log/mysql/binlog.log

binlogexpirelogsseconds = 7200

[mysqld]

# 设置主节点复制过滤规则，只允许特定IP或主机名的客户端连接

replicatedodb = mydb

replicateignoredb = testdb

replicatewildignoretable = mydb.%

replicatewildignoretable = %.testdb

replicatedotable = mydb.mytable

replicateignoretable = mydb.ignoretable

replicatedodb = mydb

replicateignoredb = testdb

replicatewildignoretable = mydb.%

replicatewildignoretable = %.testdb

replicatedotable = mydb.mytable

replicateignoretable = mydb.ignoretable

[mysqld]

# 设置主节点连接数限制和超时时间

max_connections = 1000

wait_timeout = 300

[mysqld]

# 设置主节点备份策略和备份位置

backupmethod = binary

backupdirectory = /var/backup/mysql/master/binlogs/daily/$(date +%Y%m%d)

[mysqld]

# 设置主节点自动提交事务间隔时间（秒）和事务日志刷新间隔时间（秒）

autocommit = 1000000000000000000000000000000000000000000000000000000000000000

expire_logs_days = 729654321345678976543213456789765432134567897654321345678976543213456789765432134567897654321345678976543213456789765432134567897654321345678976543213456789765432134567897654321345678976543213456789765432134567897654321345678976543213456789765432134567897654321345678976543213456789765432134567897654321345678976543213456789765432134567897654321345678976543213456789765432134567897654321345678976543213456789765432134567897654321345678976543213456789765432134567897654321345678976543213456789765432134567897654321= #问题与解答：Q: 如何修改MySQL的主节点ID？A: 在主节点的MySQL配置文件中，找到[mysqld]部分，将serverid设置为一个唯一的标识符即可，serverid=1，Q: 如何设置MySQL的备份策略和备份位置？A: 在主节点的MySQL配置文件中，找到[mysqld]部分，根据需要修改backupmethod和backupdirectory参数，backupmethod=binary，backupdirectory=/var/backup/mysql/master/binlogs/daily/$(date +%Y%m%d)。