Hi,
I think I find the problem.
The keys like default_cake_sessions default_aros_acos default_acos and all
the models like default_MODEL_NAME have an expiration of '+999 days'
In cake/libs/cache.php at line 238 we have
if (isset($settings['duration']) && !is_numeric($settings['duration'])) {
$settings['duration'] = strtotime($settings['duration']) - time();
}
which translates to: get me the timestamp for +999 days and then substract
from it the timestamp for current time which leaves 1970 + 999 days which
invalidates my awsome memcache key/value. And of couse, if I'll use the file
cache probably it will be rewritten each and every time, I haven't test
this.
So far I don't know why that subtraction is there, why it is needed the
differernce as a result if someone can illuminate me, please do.
Thank you,
Adrian
On Wed, Jan 12, 2011 at 12:24 PM, Adrian Arnautu
<[email protected]>wrote:
> Hi to all,
>
> I activated the Memcached default support with this config
> Cache::config('default', array(
> 'engine' => 'Memcache',
> 'duration'=> 9577829600,
> 'servers' => array(
> '127.0.0.1:11211'
> ),
> 'compress' => false,
> ));
>
> and -vvv option in memcached to see what is actually happening and couple
> of questions arose.
> 1. I cleared the files from the app/tmp/cache directory and they were
> recreated. Is this a some sort of fallback, if nothing is retrieved from
> memcached these files will be used and if it does not exists it will be
> recreated? If so, it's good.
> 2. As you can see I set duration to a insanely large value.
> In memcached log I've got something like this
>
> 31: going from conn_read to conn_parse_cmd
> <31 get app_cake_core_file_map
> > FOUND KEY app_cake_core_file_map_ 1 822
> a:3:{s:4:"Core";a:3:{s:6:"Router";s: ..........
> -nuked by expire
> >31 END
>
>
> 31: going from conn_parse_cmd to conn_mwrite
> 31: going from conn_mwrite to conn_new_cmd
> 31: going from conn_new_cmd to conn_waiting
> 31: going from conn_waiting to conn_read
> 31: going from conn_read to conn_parse_cmd
> <31 get app_cake_core_dir_map
> > FOUND KEY app_cake_core_dir_map -nuked by expire
> >31 END
>
> <31 get app_cake_core_object_map
> > FOUND KEY app_cake_core_object_mapr 1 25
> a:1:{s:6:"plugin";a:0:{}}
> -nuked by expire
> >31 END
>
> 1: going from conn_nread to conn_write
> 31: going from conn_write to conn_new_cmd
> 31: going from conn_new_cmd to conn_waiting
> 31: going from conn_waiting to conn_read
> 31: going from conn_read to conn_parse_cmd
> <31 get app_cake_model_default_cake_sessions
> > FOUND KEY app_cake_model_default_cake_sessions1 1 321
>
> a:3:{s:2:"id";a:5:{s:4:"type";s:6:"string";s:4:"null";b:0;s:7:"default";s:0:"";s:6:"length";i:255;s:3:"key";s:7:"primary";}s:4:"data";a:4:{s:4:"type";s:4:"text";s:4:"null";b:1;s:7:"default";s:0:"";s:6:"length";i:1073741824;}s:7:"expires";a:4:{s:4:"type";s:7:"integer";s:4:"null";b:1;s:7:"default";s:0:"";s:6:"length";N;}}
> -nuked by expire
> >31 END
>
> 1: going from conn_nread to conn_write
> 31: going from conn_write to conn_new_cmd
> 31: going from conn_new_cmd to conn_waiting
> 31: going from conn_waiting to conn_read
> 31: going from conn_read to conn_parse_cmd
> <31 get app_cake_model_default_cake_sessions
> > FOUND KEY app_cake_model_default_cake_sessions1 1 321
>
> a:3:{s:2:"id";a:5:{s:4:"type";s:6:"string";s:4:"null";b:0;s:7:"default";s:0:"";s:6:"length";i:255;s:3:"key";s:7:"primary";}s:4:"data";a:4:{s:4:"type";s:4:"text";s:4:"null";b:1;s:7:"default";s:0:"";s:6:"length";i:1073741824;}s:7:"expires";a:4:{s:4:"type";s:7:"integer";s:4:"null";b:1;s:7:"default";s:0:"";s:6:"length";N;}}
> -nuked by expire
> >31 END
>
> 31: going from conn_parse_cmd to conn_mwrite
> 31: going from conn_mwrite to conn_new_cmd
> 31: going from conn_new_cmd to conn_waiting
> 31: going from conn_waiting to conn_read
> 31: going from conn_read to conn_parse_cmd
> <31 set app_cake_model_default_cake_sessions 1 86310000 321
> 31: going from conn_parse_cmd to conn_nread
> > NOT FOUND app_cake_model_default_cake_sessions1 1 321
>
> a:3:{s:2:"id";a:5:{s:4:"type";s:6:"string";s:4:"null";b:0;s:7:"default";s:0:"";s:6:"length";i:255;s:3:"key";s:7:"primary";}s:4:"data";a:4:{s:4:"type";s:4:"text";s:4:"null";b:1;s:7:"default";s:0:"";s:6:"length";i:1073741824;}s:7:"expires";a:4:{s:4:"type";s:7:"integer";s:4:"null";b:1;s:7:"default";s:0:"";s:6:"length";N;}}
>
> >31 STORED
>
>
> What's with the NOT FOUND and nuked by expire?
> I'm expecting that once the values were set to see only get and found
> entries in my log.
> I've tried with different duration values, I've got the same results.
> First I though that the date is not set correctly, the date utility returns
> the correct value, the timezone is OK, I have NTP installed, the app is
> configured with the correct timezone.
> Also, in a small script all is fine.
>
> Thank you,
> Adrian
>
>
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