Hello, Yes, we have a load-balancer in front, we already investigate that way and don't dectect any error or configuration limitation. The fact that threads_limited counter strongly increase and that restart of Varnish restore the traffic suggest an issue on varnish side.
In attachement a varnishstat result from 3 hours before the issue. We notice a high value for MAIN.sess_closed_err counter. Thanks for your help. Regards > Hi, > > Do you have a load-balancer in front of Varnish? The decrease looks like > the connections are being drained > > Cheers, > -- Sébastien
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