Do not cache DNS responses when cache size is 0

f0ded6b7 · Paul Tremberth · 1f08d9a6 · f0ded6b7
隐藏空白更改
内联并排

Showing with 2 addition and 1 deletion

scrapy/resolver.py scrapy/resolver.py +2 -1

未找到文件。
--- a/scrapy/resolver.py
+++ b/scrapy/resolver.py
@@ -22,7 +22,8 @@ class CachingThreadedResolver(ThreadedResolver):
        # to enforce Scrapy's DNS_TIMEOUT setting's value
        timeout = (self.timeout,)
        d = super(CachingThreadedResolver, self).getHostByName(name, timeout)
-        d.addCallback(self._cache_result, name)
+        if dnscache.limit:
+            d.addCallback(self._cache_result, name)
        return d

    def _cache_result(self, result, name):