help sendmsg() failed in error log

Valentin V. Bartenev vbart at
Thu Apr 24 08:35:25 UTC 2014

On Thursday 24 April 2014 11:04:05 yanghq wrote:
> hello
>      when test my reverse proxy server, I found "sendmsg() failed (9:
> Bad file descriptor) while reading response header from upstream" in
> error.log.
>      Is there any clue about it?

Since nginx doesn't use sendmsg() for upstream servers, it's very likely
that the clue is somewhere around 3rd-party modules.

  wbr, Valentin V. Bartenev

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