# Stalled cache updating and upstream timeouts?

**URL:** <https://www.ruby-forum.com/t/stalled-cache-updating-and-upstream-timeouts/207685>\
**Category:** NGINX\
**Created:** [May 31, 2011, 7:34pm UTC](https://www.ruby-forum.com/t/stalled-cache-updating-and-upstream-timeouts/207685 "2011-05-31T19:34:41Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![luislavena](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/l/0ea827/32.png) [@luislavena](https://www.ruby-forum.com/u/luislavena)\
**Post date:** [May 31, 2011, 7:34pm UTC](https://www.ruby-forum.com/t/stalled-cache-updating-and-upstream-timeouts/207685/1 "2011-05-31T19:34:41Z")

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Hi,

I get 2 errors into nginx logs, constantly:

- stalled cache updating, error:0 while closing request AND
- upstream timed out (110: Connection timed out) while reading response  
header from upstream

I use fastcgi as upstream, with next\_upstream set to error only and  
send\_timeout at 60s.  
Could you be kind and help me understand when these 2 errors occur?

Thank you.

Posted at Nginx Forum:

> **[Stalled cache updating and upstream timeouts?](https://forum.nginx.org/read.php?2,202697,202697#msg-202697)**
>
> Hi, I get 2 errors into nginx logs, constantly: \* stalled cache updating, error:0 while closing request AND \* upstream timed out (110: Connection timed out) while reading response header from upstream I use fastcgi as upstream, with next\_upstream set...