I am seeing some strange behavior with nginx 0.6.32, 0.6.35 and 0.6.36
upstream fair load balancer and the patches from  for statistics. On
you can see the statistics taken from nginx via the stub status module.
bug that I am seeing results in the increase of the values ( everyting
1k ), it seems that at some points the counters just go up and I need to
restart nginx in order to get correct values. I do not have a way to
reproduce it, it just happens at some point (might be a day, might be a
or more after nginx was started).
I am also seeing jumps in the statistics for connections to upstreams
the patches in ). The counters for upstreams can be reset with
to nginx, but the counters from stub status not. The increase in these
results in nginx marking the upstream as down and “no live upstreams
connecting to upstream” in the error log. In the nginx conf I have an
upstream with 10 php backends using fair in peak mode.
Is it a nginx bug or does it come from the upstream fair module? Is
else seeing similar issues with/without the fair module?