func (this *Election) doUpdateConfig(change *thispb.Configuration) error {
walRecord := thispb.WALRecord{}
walRecord.ConfigChange = change
_, errSync := wal.SyncChangeProto(this.wal, this.uid, &walRecord)
if errSync != nil {
this.Errorf("could not append config change wal record: %v", errSync)
return errSync
}
this.doRestoreConfig(change)
return nil
}
