Your browser does not seem to support JavaScript. As a result, your viewing experience will be diminished, and you have been placed in read-only mode.
Please download a browser that supports JavaScript, or enable it if it's disabled (i.e. NoScript).
不设置timestamp只设置了position,canal是根据这个position在binlog文件里面找到最近的一个事务开始同步的,所以实际开始的offset比你自己设置的position靠前是正常的