[ZODB-Dev] RelStorage recommended maintenance

Shane Hathaway shane at hathawaymix.org
Fri Jan 21 15:57:45 EST 2011


On 01/21/2011 10:46 AM, Chris Withers wrote:
> I'm wondering what the recommended maintenance for these two types of
> storage are that I use:
>
> - keep-history=true, never want to lose any revisions
>
> My guess is zodbpack with pack-gc as true, but what do I specify for the
> number of days in order to keep all history?

Is 100 years enough?  365.24 * 100 = 36524 ;-)

> - keep-history=false, never want any revisions or unreferenced objects
>
> My guess is zodbpack with pack-gc as true and days as 0?

Sounds right.

> All storages will be in MySQL, are there any duty-cycle or other
> parameters I should tweak from their default values?

As I recommend to everyone, there should be no need to tweak anything 
unless you have measurements that tell you the defaults don't fit your site.

> How often do you recommend running zodbpack?

Daily.

Shane


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