first commit

mysqld.service

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+[Unit]
+Description=MySQL Server
+After=network.target
+
+[Service]
+Type=simple
+User=mysql
+Group=mysql
+
+# 直接使用 mysqld
+ExecStart=/usr/local/mysql/bin/mysqld --defaults-file=/etc/my.cnf
+ExecStop=/usr/local/mysql/bin/mysqladmin shutdown
+
+# 重启策略
+Restart=on-failure
+RestartSec=5s
+
+# 超时设置
+TimeoutStartSec=300
+TimeoutStopSec=60
+
+# 资源限制
+LimitNOFILE=65536
+
+[Install]
+WantedBy=multi-user.target
+