Tornado 中断系统调用 [英] Tornado Interrupted system call

问题描述

我不时收到此错误，不知道如何调试.

I'm getting this error from time to time and not sure how can be debugged.

Traceback (most recent call last):
  File "/usr/lib/python2.7/dist-packages/tornado/ioloop.py", line 662, in start
    event_pairs = self._impl.poll(poll_timeout)
IOError: [Errno 4] Interrupted system call

有人知道这是什么意思/什么时候发生吗?

Does anyone know what this means / when is happening?

我使用的是 python 2.7 和 tornado 3.2.1

I'm using python 2.7 and tornado 3.2.1

更新:此代码位于 ioloop.py

try:
    event_pairs = self._impl.poll(poll_timeout)
except Exception as e:
    # Depending on python version and IOLoop implementation,
    # different exception types may be thrown and there are
    # two ways EINTR might be signaled:
    # * e.errno == errno.EINTR
    # * e.args is like (errno.EINTR, 'Interrupted system call')
    if (getattr(e, 'errno', None) == errno.EINTR or
          (isinstance(getattr(e, 'args', None), tuple) and
          len(e.args) == 2 and e.args[0] == errno.EINTR)):
        continue
    else:
        raise

推荐答案

看来您应该升级 Tornado 的版本；这个错误(从poll 返回的EINTR)似乎是已在最新版本中修复.

It seems you should upgrade your version of Tornado; this bug (EINTR returned from poll) appears to be fixed in the latest versions.

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