How are health checks during and throughout this period? Are they all passing? I would make sure there aren't periods where your backend hosts aren't becoming unhealthy.
On Wed, Jan 29, 2014 at 11:56 AM, Jennings, Raymond < [email protected]> wrote: > There has got to be a way I can drill down as to why Varnish does this. > Looking at the varnishncsa output I am seeing 5 to 10 second intervals > where all requests are returned as 503's When I look a the backend apache > servers there are ZERO requests in these time periods. > > I see nothing in syslog with any varnishd messages or any other network > error. I believe this is internal to Varnish but cannot find anything. > Any clues how I can go about digging into this. This is a production > system so I cannot modify code but I can insert VCL (C inlined is fine) > For now I tried turning on varnishlog (already running varnishncsa.) > > _______________________________________________ > varnish-misc mailing list > [email protected] > https://www.varnish-cache.org/lists/mailman/listinfo/varnish-misc > -- Stephen Wood www.heystephenwood.com
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