a possible dead cycle?
彭伟
pwlazy at gmail.com
Thu Apr 7 12:04:31 CEST 2011
based on the configuration as below:
sub vcl_fetch {
if (!obj.cacheable) {
# Limit the lifetime of all 'hit for pass' objects to 10 seconds
obj.ttl = 10s;
pass;
}
}
when the object is not cacheable, then go to "pass" which means going
to fetch the object from the backend server again?
2011/4/7 Traian Bratucu <traian.bratucu at eea.europa.eu>
> No, if an object is not cacheable, it will simply not be cached (stored in
> memory and later served from here instead of fetching from the backend), but
> IT WILL BE DELIVERED to the client.
>
> The only time varnish will re-fetch the object from the backend is on a new
> client request.
>
>
>
> Traian
>
>
>
> *From:* varnish-misc-bounces at varnish-cache.org [mailto:
> varnish-misc-bounces at varnish-cache.org] *On Behalf Of *??
> *Sent:* Thursday, April 07, 2011 11:25 AM
> *To:* varnish-misc at varnish-cache.org
> *Subject:* a possible dead cycle?
>
>
> when varnish fetch a page from backend server, and find it 's not
> cacheable, so go to fetch the page from backend sever again?
>
>
> and find it 's not cacheable again , so again and agian .......?
>
> please help me! thanks !
>
>
>
> Regards!
> pwlazy
>
>
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> varnish-misc mailing list
> varnish-misc at varnish-cache.org
> http://www.varnish-cache.org/lists/mailman/listinfo/varnish-misc
>
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