varnish reduces hit rate

Joydeep Bakshi joydeep.bakshi at netzrezepte.de
Wed Apr 23 15:40:32 CEST 2014


Thanks for your TTL related suggestion. I have gone through the
documentation and add following for TTL

[.....]

import std; # needed for std.log

sub vcl_fetch {
  if (beresp.ttl < 120s) {
    std.log("Adjusting TTL");
    set beresp.ttl = 120s;
  }
}

[...]

and found improvement in hit rates

Hitrate ratio:       10       19       19Hitrate avg:     0.9998   0.9997
0.9997

       45101         0.00        26.56 client_conn - Client connections
accepted
       45101         0.00        26.56 client_req - Client requests received
       45005         0.00        26.50 cache_hit - Cache hits
          40         0.00         0.02 cache_hitpass - Cache hits for pass
         56         0.00         0.03 cache_miss - Cache misses
          59         0.00         0.03 backend_conn - Backend conn. success
          37         0.00         0.02 backend_reuse - Backend conn. reuses
          15         0.00         0.01 backend_toolate - Backend conn. was
closed
          53         0.00         0.03 backend_recycle - Backend conn.
recycles


wonder if there is any other option for improvements. Any opinion /
suggestion is very much welcome.

many many thanks





On Wed, Apr 23, 2014 at 3:44 PM, Joydeep Bakshi <
joydeep.bakshi at netzrezepte.de> wrote:

> ok, thanks
>
>
> On Wed, Apr 23, 2014 at 3:37 PM, Guillaume Quintard <
> guillaume.quintard at smartjog.com> wrote:
>
>>  On 04/23/2014 11:55 AM, Joydeep Bakshi wrote:
>>
>> Since I am completely new to varnish, may I request to share the
>> knowledge doing this ?
>>
>> I recommend reading the documentation first, alot of your answers are in
>> them.
>>
>> --
>> Guillaume Quintard
>>
>
>
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