replication权限、reason given by server权限不够

1建立专门用于Replication的账户首先Replication操作会涉及到的两个重要权限，这里先做一下说明TheREPLICATIONCLIENTprivilegeenablestheuseofSHOWMASTERSTATUSandSHOWSLAVESTATUSR