在Django / python中，如何将memcache设置为无限时间？ [英] In Django/python, how do I set the memcache to infinite time?

问题描述

cache.set(key, value, 9999999)

但这不是无限的时间...

But this is not infinite time...

推荐答案

def _get_memcache_timeout(self, timeout):
    """
    Memcached deals with long (> 30 days) timeouts in a special
    way. Call this function to obtain a safe value for your timeout.
    """
    timeout = timeout or self.default_timeout
    if timeout > 2592000: # 60*60*24*30, 30 days
        # See http://code.google.com/p/memcached/wiki/FAQ
        # "You can set expire times up to 30 days in the future. After that
        # memcached interprets it as a date, and will expire the item after
        # said date. This is a simple (but obscure) mechanic."
        #
        # This means that we have to switch to absolute timestamps.
        timeout += int(time.time())
    return timeout

而从常见问题解答：

设置到期时间有什么限制（为什么有30天的限制？）

What are the limits on setting expire time? (why is there a 30 day limit?)

您可以设定逾期30天的到期时间，之后memcache将其解释为日期，并在该日期之后到期，这是一个简单（但模糊的）技工。

You can set expire times up to 30 days in the future. After that memcached interprets it as a date, and will expire the item after said date. This is a simple (but obscure) mechanic.

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