How long after the call to deferred.defer are you running the loop
that checks that datastore has a record for each value in memcache?
Perhaps you're running the loop before a deferred task has had a
chance to run, in some cases?
Nick Verne
On Thu, Jan 5, 2012 at 4:09 AM, Felippe Bueno <felippe.bu...@gmail.com> wrote:
>
> Hello friends,
>
> I'm getting a strange task queue/datastore/memcache behavior.
>
> I have something like the following code:
>
> report = memcache.get(id)
>
> if not report:
> try:
> if not deferred.defer(self.addindex, id=id):
> logging.error('cannot store task for report index')
> report = False
> else:
> memcache.set(id, 1)
> except:
> logging.error('cannot store task for report index')
> report=False
>
>
> def addindex(id)
> reportindex=Foo(id=id)
> try:
> reportindex.put()
> except Exception, e:
> logging.error('can not put report index')
>
>
> When I can not put 'reportindex' I'm getting the logging.error as expected.
> But some times, I don't get the error, and don't have related id into the
> DS.
>
> To prove that was an error, I wrote to run every hour something like:
>
> for x in range(startid, lastid):
> if memcache.get('%s' % x) and not Foo.all().filter('id', x).fetch(1):
> logging.error('there is no register for id %s' %x)
> a=Foo(id=x)
> a.put()
>
>
>
> The problem is that I need Foo() to "index" memcache.
>
> Is this an expected behavior ?
> Should I trust on deferred.defer() ?
>
>
> Thanks a lot
> Felippe Bueno
>
>
>
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