Our db is the innodb eng.
We have no hot backup tools to dump the data.
If lock the table by the following cmd before we dump the data
FLUSH TABLES WITH READ LOCK;
It seems ok,it can lock the innodb too.
But the replication would be crushed ,even it start up smoothly,due to the duplicated
Do any one try to lock innodb tables to make the snap shot?
Since shutdown the master db would take great effect,we don't hope so.