memcache实现分布式算法问题
根据$key计算出在那个节点获取缓存的时候,PHP有没有内置函数能计算出$key一致性哈希值,从而根据hash取余得出具体那台服务器去获取缓存?
回复内容：
根据$key计算出在那个节点获取缓存的时候,PHP有没有内置函数能计算出$key一致性哈希值,从而根据hash取余得出具体那台服务器去获取缓存?
一致性哈希算法有多种具体实现。php 应该没有内置的函数，狠一点的话去看你所用memcached客户端的源码，把他的一致性哈希算法抠出来，自己用php 来实现。
php开源的memcached客户端一般都会自带一致性哈希算法。去github上搜搜看吧。
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