On Mon, Jun 2, 2008 at 7:57 AM, Chris Shenton <[EMAIL PROTECTED]> wrote:
> We have to fill out pounds of paperwork in order to take any outage on > a public server, no matter how small. Is there a way to restart > Varnish without any downtime -- to continue accepting but holding > connections until restarted, rather like Apache's "apachectl graceful" > does? Other ideas? Can you avoid the problem by putting your Varnish servers behind a load balancer? That way, you can preemptively disable the server from taking traffic on the LB side prior to restarting Varnish, thereby eliminating any perceivable customer effect. Also, be careful about using "apachectl graceful" (especially combined with log rotation), as connections that are currently idle but which may never receive traffic again will not be terminated. I consider it too leaky to use. Best regards, --Michael
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