[ckan-dev] cache_dir

Wed Feb 4 10:59:06 UTC 2015

I revamp this old thread about the caching because I just crashed my Production CKAN.Could I get rid of these files periodically? Is there a way?
In facts, I just realized today that our CKAN is producing hundreds of thousands of small files on the cache directory (/session in particular), file like this:
./default/sessions/container_file/5/59/5992e9b028454f8684e5d53a0f2a8005.cache
Basically the file system crashed because we reached the max number of INode on it.
Is there a setting on the PRODUCTION.INi to avoid this caching? Is there any issue related if I setup a cron job that delete these files  periodically
Thanks a lot for any suggestions

Marco Combetto
marcomb at hotmail.com
Mobile: +39 3316329971
www.linkedin.com/in/marcomb 

From: y2kristi at hotmail.com
To: ckan-dev at lists.okfn.org
Date: Fri, 14 Mar 2014 05:11:13 -0400
Subject: Re: [ckan-dev] cache_dir

thanks so much!

> Date: Fri, 14 Mar 2014 09:09:45 +0000
> From: david.raznick at okfn.org
> To: ckan-dev at lists.okfn.org
> Subject: Re: [ckan-dev] cache_dir
> 
> Hello
> 
> The normal data is not stored on disk first and goes straight in the database.
> 
> David
> 
> On 14 March 2014 09:04, kristi powell <y2kristi at hotmail.com> wrote:
> > oh I understand. I'm asking now if a copy of the data that will be saved to Postgres is saved anywhere else on the file system before being persisted.
> >
> >> On Mar 14, 2014, at 5:00 AM, "David Raznick" <david.raznick at okfn.org> wrote:
> >>
> >> The data saved there is never persisted to the database, but is saved
> >> locally just for a single request.
> >>
> >>> On 14 March 2014 08:55, kristi powell <y2kristi at hotmail.com> wrote:
> >>> but is the data actually saved locally before it's persisted to the db anywhere?
> >>>
> >>>> On Mar 14, 2014, at 4:41 AM, "David Raznick" <david.raznick at okfn.org> wrote:
> >>>>
> >>>> Hello
> >>>>
> >>>> The cache directory or the session directory is only used for stuff
> >>>> that is not saved in the database.  It is always safe to remove.  It
> >>>> is only used for very temporary data.  CKAN only uses it infact to
> >>>> store the little popup messages that come up after you are redirected
> >>>> to a new page.
> >>>>
> >>>> David
> >>>>
> >>>>> On 14 March 2014 07:36, kristi powell <y2kristi at hotmail.com> wrote:
> >>>>> can anyone explain this setting to me please?
> >>>>>
> >>>>> thanks.
> >>>>>
> >>>>>> On Mar 13, 2014, at 3:45 AM, "kristi powell" <y2kristi at hotmail.com> wrote:
> >>>>>>
> >>>>>> hello...
> >>>>>>
> >>>>>> is there anything written into cache before the data is saved to the database? I see a setting called "cache_dir" is that just session information or actual data? is there any data saved locally before it's persisted?
> >>>>>>
> >>>>>> thanks
> >>>>>>
> >>>>>> kristie
> >>>>>> _______________________________________________
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