python - 运行几个小时后永久性的gaierror 'Temporary failure in name resolution'

Question

我有一个长时间运行的 python 脚本，由 upstart 启动。这个脚本提出了很多请求。一开始一切正常，但几个小时后，我开始为每个请求永久收到以下错误:

  File "/opt/a/a-env/local/lib/python2.7/site-packages/atom/client.py", line 119, in request
  File "/opt/a/a-env/local/lib/python2.7/site-packages/atom/http_core.py", line 420, in request
  File "/opt/a/a-env/local/lib/python2.7/site-packages/atom/http_core.py", line 489, in _http_request
  File "/usr/lib/python2.7/httplib.py", line 931, in endheaders
  File "/usr/lib/python2.7/httplib.py", line 794, in _send_output
  File "/usr/lib/python2.7/httplib.py", line 756, in send
  File "/usr/lib/python2.7/httplib.py", line 1134, in connect
  File "/usr/lib/python2.7/socket.py", line 553, in create_connection
gaierror: [Errno -3] Temporary failure in name resolution

这不是名称解析或 DNS 的问题，因为只需重新启动应用程序即可解决此问题。

我已经尝试了 Python 2.6 和 2.7，同样的情况发生了。

我正在运行 Linux 2.6.35-30-virtual #61-Ubuntu SMP Tue Oct 11 18:26:36 UTC 2011 x86_64 GNU/Linux

已经有一些关于这个问题的帖子，但没有一个有直接的解释或解决方案:

• https://github.com/ggstuart/greenview/issues/4
• Permanent 'Temporary failure in name resolution' after running for a number of hours

Answer 1

我认为当您处于“太多打开的文件”状态时会发生这种情况。下次发生这种情况时，请尝试查看您的脚本打开了多少个文件描述符。