mysql的两个备份语句

适合多引擎混合（例如：myisam与innodb混合）的备份命令如下：

mysqldump -A -R --triggers --master-data=2 --single-transaction  |gzip >/opt/alL_$(date +%F).sql.gz

------ 使用mysqldump+binlog日志，故障模拟恢复

mysqldump -A -R --triggers --master-data=2 --single-transaction  |gzip >/backup/alL_$(date +%F).sql.gz

head -30 all_2017-12-25.sql |grep "MASTER_LOG_POS="

-- CHANGE MASTER TO MASTER_LOG_FILE='mysql-bin.000002', MASTER_LOG_POS=120;

mysqldump -A -R --triggers --single-transaction --master-data=2 -uroot -poldboy123|gzip >/backup/all_1225.sql.gz

-- Position to start replication or point-in-time recovery from --

-- CHANGE MASTER TO MASTER_LOG_FILE='mysql-bin.000002', MASTER_LOG_POS=120;