bitsCN.com 共3个线程参与以上同步过程,他们分别为: Master Binlog Dump线程:Has sent all binlog to slave; waiting for binlog to be updated;(需同步帐号) Slave Slave IO线程:Waiting for master to send event;(需system user) Slave SQL线程:Has read all relay log; waiting for the slave I/O thread to update it;(需system user) bitsCN.com