Question

我正在使用带有python的谷歌应用引擎，我刚刚实现了memcache，用户端的一切看起来都不错。数据正在被正确缓存，但是当我查看日志时，我看到每次打开页面时都会弹出随机错误代码。现在它们对于单个页面是相同的，无论我打开它多少次，它只存储在memcache中一次，但每次都会出现两个错误代码。第一个总是-1，第二个是随机的。一些例子是194,214,204,77,208和158.除了时间之外没有更多的信息。

这是我的代码正在进行实际缓存，每次用户在我的网站上发布新帖子时都会发生这种情况：

class PostPage(BlogHandler):
    def get(self, post_id, subject):
        key = db.Key.from_path('Post', int(post_id), parent=blog_key())
        key = str(key)
        post = memcache.get(key)
        if post is None:
            logging.error('DB QUERY')
            post = db.get(key)
            memcache.set(key, post)
        if not post:
            self.error(404)
            return
        self.render("permalink.html", post = post)

知道可能导致这种情况的原因是什么？是我的调用来获取Key.from_path吗？

这是实际日志：

2012-07-02 22:52:21.331 /post/31001/profile-pages-down-for-maintenance 200 47ms 2kb Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/536.5 (KHTML, like Gecko) Chrome/19.0.1084.56 Safari/536.5
E 2012-07-02 22:52:21.318 DB QUERY
E 2012-07-02 22:52:21.330 -1
E 2012-07-02 22:52:21.330 208
2012-07-02 22:52:18.311 /js/bootstrap.js 404 35ms 0kb Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/536.5 (KHTML, like Gecko) Chrome/19.0.1084.56 Safari/536.5
2012-07-02 22:52:17.910 / 200 115ms 4kb Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/536.5 (KHTML, like Gecko) Chrome/19.0.1084.56 Safari/536.5
2012-07-02 22:52:14.797 /js/bootstrap.js 404 34ms 0kb Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/536.5 (KHTML, like Gecko) Chrome/19.0.1084.56 Safari/536.5
2012-07-02 22:52:14.499 /profile/17001 200 90ms 3kb Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/536.5 (KHTML, like Gecko) Chrome/19.0.1084.56 Safari/536.5
2012-07-02 22:52:14.173 /profile 302 104ms 0kb Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/536.5 (KHTML, like Gecko) Chrome/19.0.1084.56 Safari/536.5
2012-07-02 22:52:13.198 /js/bootstrap.js 404 36ms 0kb Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/536.5 (KHTML, like Gecko) Chrome/19.0.1084.56 Safari/536.5
2012-07-02 22:52:12.823 / 200 138ms 4kb Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/536.5 (KHTML, like Gecko) Chrome/19.0.1084.56 Safari/536.5
2012-07-02 22:51:59.664 /search?q=paragliding 200 35ms 2kb Mediapartners-Google
2012-07-02 22:51:57.902 /static/bootstrap.css 200 32ms 0kb
2012-07-02 22:51:57.860 /js/bootstrap.js 404 30ms 0kb Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/536.5 (KHTML, like Gecko) Chrome/19.0.1084.56 Safari/536.5
2012-07-02 22:51:57.537 /search?q=paragliding 200 57ms 2kb Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/536.5 (KHTML, like Gecko) Chrome/19.0.1084.56 Safari/536.5
2012-07-02 22:51:51.105 /js/bootstrap.js 404 30ms 0kb Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/536.5 (KHTML, like Gecko) Chrome/19.0.1084.56 Safari/536.5
2012-07-02 22:51:50.838 / 200 119ms 4kb Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/536.5 (KHTML, like Gecko) Chrome/19.0.1084.56 Safari/536.5
2012-07-02 22:50:49.812 /favicon.ico 404 96ms 0kb Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/536.5 (KHTML, like Gecko) Chrome/19.0.1084.56 Safari/536.5
2012-07-02 22:48:43.633 /post/14009/more-fantastic-paragliding 200 1090ms 2kb Mediapartners-Google
E 2012-07-02 22:48:43.632 137
E 2012-07-02 22:48:43.632 365
2012-07-02 22:48:42.464 /robots.txt 404 29ms 0kb Mozilla/5.0 (compatible; Googlebot/2.1; +http://www.google.com/bot.html)
2012-07-02 22:48:41.513 /js/bootstrap.js 404 31ms 0kb Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/536.5 (KHTML, like Gecko) Chrome/19.0.1084.56 Safari/536.5
2012-07-02 22:48:41.288 /post/14009/more-fantastic-paragliding 200 48ms 2kb Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/536.5 (KHTML, like Gecko) Chrome/19.0.1084.56 Safari/536.5
E 2012-07-02 22:48:41.287 137
E 2012-07-02 22:48:41.287 365

Answer 1

我不认为那些是（真正的）错误，有些东西是使用log.error记录这些数字，在你的代码中查找log.error（'％d'（或log.error（'％s'））。可能在你的render（）方法中。

实现memcache后的随机错误代码

1 个答案: