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From Paco Avila <monk...@gmail.com>
Subject Re: Datastore and garbage collection
Date Mon, 09 Mar 2009 19:03:33 GMT
This sounds interesting as a recommendation.

On Mon, Mar 9, 2009 at 7:55 PM, Jukka Zitting <jukka.zitting@gmail.com>wrote:

> Hi,
> On Mon, Mar 9, 2009 at 6:38 PM, Paco Avila <monkiki@gmail.com> wrote:
> > Do you mean that GC only make sense if I delete documents from the
> > repository?
> Yes. I would even say that GC only makes sense if 1) you delete
> significant amounts of documents from the repository and 2) you add
> documents at an *exponential* rate that exceeds the growth in storage
> capacity.
> > I don't think that never run GC and keep all the documents (deleted one
> > included) is a good alternative in repositories with several GB of size
> > and big documents.
> It depends... For example, I currently shoot about 10GB of digital
> photos per month. Roughly 20% of the shots are so bad (blurry, poor
> composition, overexposed, etc.) that I discard them immediately. It
> would take just a few mouse clicks or a simple cron script to free up
> the disk space that those discarded images take. But the extra effort
> simply isn't worth it, since I will most likely have at least doubled
> my storage capacity before my current 500GB hard drive is even close
> to being filled up. Even the fact that I will probably only ever
> publish about 10% of my photos doesn't make much of a difference,
> since it costs so little to never delete anything. And I never need to
> worry about accidentally removing something.
> If your application is for personal use and you produce less than 10GB
> of data per month, then don't worry about garbage collection.
> If your application is for enterprise use and your customer produces
> less than 100GB-1TB data per month (depending on the size of the
> enterprise), then don't worry about garbage collection.
> BR,
> Jukka Zitting

Paco Avila
GIT Consultors
tel: +34 971 498310
fax: +34 971496189
e-mail: pavila@git.es

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