Hi, all: There is a problem about master-slave sync delay, I find some infomations from 'show processlist', some like that:
1051 system user ns Connect 10 update xxx what does Connect mean, mysql manual explained: Connect A replication slave is connected to its master. Then, There is 10s delay from master to slave. I want to know why does this happend, slow network I/O? or something wrong with this update SQL? Thanks Regards W.J