code: func SetIgnoreError(on bool) {
  	if on {
  		atomic.StoreUint32(&ignoreError, 1)
  	} else {
  		atomic.StoreUint32(&ignoreError, 0)
  	}
  }
docs: // SetIgnoreError sets the ignoreError flag, this function called when TiDB start
  // up and find config.Binlog.IgnoreError is true.