And, I should add, this works perfecty (and quickly) from the
development server's datastore.
On Apr 29, 8:31 am, tayknight <taykni...@gmail.com> wrote:
> I have a problem. I'm getting datastore timeouts when doing reads. The
> code finished about 5% of the time. The code looks like:
>
> alerts = Alert.all().filter('expires >= ', datetime.datetime.now())
> # ge active alerts
> for alert in alerts:
> #get the db.Keys from the ListProperty
> zones = ZoneMaster.get(alert.zones)
> for zone in zones:
> if zone:
> #get the users for this zone
> if zone.siteusers:
> us = SiteUser.get(zone.siteusers)
> for u in us:
> if u:
> self.response.out.write(u.name + '<br />')
>
> The Model looks like:
> class Alert(db.Model):
> effective = db.DateTimeProperty()
> expires = db.DateTimeProperty()
> zones = db.ListProperty(db.Key)
>
> class ZoneMaster(db.Model):
> siteusers = db.ListProperty(db.Key)
>
> class SiteUser(db.Model):
> name = db.StringProperty()
> zone = db.ReferenceProperty(ZoneMaster)
>
> This code is repeatably timing out with a "Timeout: datastore timeout:
> operation took too long." error.
> I'm not doing any writes. All the reads are by key (that come from a
> ListProperty). Why would this be timing out?
>
> Thanks.
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