Esempio n. 1
0
func (self *BitcaskStore) migrate(host string, left, right uint32) {
	keyChan := self.bc.Keys()
	target := protocol.NewHost(host)
	for key := range keyChan {
		v := crc32hash([]byte(key))
		if (left < right && v >= left && v < right) ||
			(left > right && !(v >= left && v < right)) {
			v, e := self.bc.Get(key)
			if e == nil {
				target.Set(key, &protocol.Item{Body: v}, false)
			}
		}
	}
}
Esempio n. 2
0
func (self *BitcaskStore) Set(key string, item *protocol.Item, noreply bool) (bool, error) {
	if len(key) > 3 && strings.Contains(key, "@#$") {
		pos := strings.Index(key, "@#$")
		target := protocol.NewHost(key[pos+3:])
		key = key[:pos]
		self.chF <- func() {
			for {
				if ok, _ := target.Set(key, item, noreply); ok {
					break
				}
			}
		}
	}
	e := self.bc.Set(key, item.Body)
	if e != nil {
		return false, e
	}
	return true, nil
}