Hi Daniel,

The sort order should be working correctly again. The issue was a broken
index value; we have a short term fix in place, but I wouldn't rule out this
appearing again. Is it possible for you to create a new entity with the same
values with a different key? That's one way to work around this issue in the
future.

On Wed, Jul 14, 2010 at 2:23 PM, Ikai L (Google) <[email protected]> wrote:

> I finished running the index tool. This is very strange. I'm seeing exactly
> what you're seeing: the 2011 entity is the first one returned. Let me chase
> this down for you.
>
>
> On Wed, Jul 14, 2010 at 12:24 PM, Ikai L (Google) <[email protected]>wrote:
>
>> Yeah, I'm checking for index corruption. It could also mean there's a bug
>> in the way we're sorting.
>>
>>
>> On Wed, Jul 14, 2010 at 11:51 AM, Daniel <[email protected]>wrote:
>>
>>> Thanks for looking.  If you run the query in the admin console:
>>> "SELECT * FROM Keyword WHERE is_active = True ORDER BY last_check ASC"
>>> you will see the entity with key
>>> agtsb294aWktYmV0YXIaCxIHS2V5d29yZCINa2V5X3N5bnRoZXNpbww appear as the
>>> first record although the date is set to 2011.  This indicates that
>>> the entity is not returning as it should.  This has nothing to do with
>>> my code.
>>>
>>> I don't understand how your admin console is returning something
>>> different from mine.
>>>
>>> On Jul 14, 2:22 pm, "Ikai L (Google)" <[email protected]> wrote:
>>> > Daniel, I'm going to try running a tool on your data. I'll email this
>>> group
>>> > again when it's finished. I'm curious as to whether or not this does
>>> > anything for you. My testing via the admin console (I don't have access
>>> to
>>> > your code) seems to indicate that everything is and was working
>>> correctly,
>>> > but I'd like to establish a greater confidence level either way.
>>> >
>>> >
>>> >
>>> > On Wed, Jul 14, 2010 at 8:03 AM, Daniel <[email protected]>
>>> wrote:
>>> > > I would like a reply...
>>> >
>>> > > I was able to delete and re-add this record and that fixed that
>>> query,
>>> > > but it turns out I have another record that is not updating and can't
>>> > > be deleted.
>>> >
>>> > > This record key is
>>> > > agtsb294aWktYmV0YXIaCxIHS2V5d29yZCINa2V5X3N5bnRoZXNpbww the kind is
>>> > > Keyword.
>>> >
>>> > > It appears that the record broke during the same downtime last week.
>>> > > It always show the current time and cannot be changed in the admin
>>> > > console or by code.  I cannot delete this entity.
>>> >
>>> > > It seems my data is going corrupt all over the place...
>>> >
>>> > > On Jul 10, 10:59 am, Daniel <[email protected]> wrote:
>>> > > > Okay, regardless of your ability to offer me any sort of instant
>>> > > > support, I need this problem fixed.
>>> >
>>> > > > I am not setting any read consistency. The query that you specified
>>> > > > (SELECT * FROM Search_update ORDER BY last_check DESC LIMIT 10) is
>>> set
>>> > > > to DESC, so of course it appears correct that the 2011 record is
>>> > > > first, but when you change it to ASC the 2011 record still appears
>>> > > > first.  The broken entity
>>> > > > 'agtsb294aWktYmV0YXIVCxINU2VhcmNoX3VwZGF0ZRi62AUM' now has changed
>>> to
>>> > > > 2011 from what you did yesterday but is is showing up as the OLDEST
>>> > > > record.  if you look at the list you will see that after the broken
>>> > > > record, the following 9 records are in ascending order and set to
>>> > > > 2010.  My original query above specified ascending order.
>>> >
>>> > > > agtsb294aWktYmV0YXIVCxINU2VhcmNoX3VwZGF0ZRi62AUM 2011-07-09
>>> > > > 17:57:37.894714
>>> > > > agtsb294aWktYmV0YXIVCxINU2VhcmNoX3VwZGF0ZRiUvi8M 2010-07-10
>>> > > > 12:14:52.306180
>>> > > > agtsb294aWktYmV0YXIVCxINU2VhcmNoX3VwZGF0ZRiawS4M 2010-07-10
>>> > > > 12:15:18.649276
>>> > > > agtsb294aWktYmV0YXIWCxINU2VhcmNoX3VwZGF0ZRjSkLEBDA 2010-07-10
>>> > > > 12:15:40.274290
>>> > > > agtsb294aWktYmV0YXIVCxINU2VhcmNoX3VwZGF0ZRiw_gUM 2010-07-10
>>> > > > 12:15:43.913061
>>> > > > agtsb294aWktYmV0YXIVCxINU2VhcmNoX3VwZGF0ZRjw1gUM 2010-07-10
>>> > > > 12:15:52.877386
>>> > > > agtsb294aWktYmV0YXIVCxINU2VhcmNoX3VwZGF0ZRif7FkM 2010-07-10
>>> > > > 12:15:54.880721
>>> > > > agtsb294aWktYmV0YXIVCxINU2VhcmNoX3VwZGF0ZRipqgUM 2010-07-10
>>> > > > 12:15:56.204075
>>> > > > agtsb294aWktYmV0YXIVCxINU2VhcmNoX3VwZGF0ZRiv4AUM 2010-07-10
>>> > > > 12:15:59.092526
>>> > > > agtsb294aWktYmV0YXIVCxINU2VhcmNoX3VwZGF0ZRijz20M 2010-07-10
>>> > > > 12:16:00.490951
>>> >
>>> > > > In general I like google app engine, but I am getting frustrated
>>> with
>>> > > > it's ability to consistently perform.  You have to realize that I
>>> have
>>> > > > an app that is coded correctly and was running fine until during
>>> the
>>> > > > planned downtime three days ago when this query stopped correctly
>>> > > > returning data, this is a structural flaw and completely disrupts
>>> my
>>> > > > ability to provide a service on your system. Also, this is the
>>> second
>>> > > > time this has happened and I had to go through quite a bit to fix
>>> it
>>> > > > the first time.  It seems that I have to repeat my last efforts,
>>> and
>>> > > > with no hope that it will not happen again and require me to
>>> generate
>>> > > > 2 days more worth of posts to get you to fix the problem.
>>> >
>>> > > > On Jul 9, 5:48 pm, Ikai Lan <[email protected]> wrote:
>>> >
>>> > > > > I manually reverted it to 2010 because I didn't want to cause
>>> problems
>>> > > with
>>> > > > > your app by fudging with the data. It didn't revert
>>> automatically. I
>>> > > just
>>> > > > > ran this GQL query:
>>> >
>>> > > > > SELECT * FROM Search_update ORDER BY last_check DESC LIMIT 10
>>> >
>>> > > > > And it displayed the data correctly.
>>> >
>>> > > > > Is there any chance you're setting a different read consistency?
>>> >
>>> > > > >
>>> http://code.google.com/appengine/docs/python/datastore/queriesandinde.
>>> > > ..
>>> >
>>> > > > > I understand your frustration with regards to paid support - but
>>> our
>>> > > pricing
>>> > > > > structure doesn't bundle in a guarantee for a support response
>>> time. We
>>> > > make
>>> > > > > every effort to address any issues in production either behind
>>> the
>>> > > scenes,
>>> > > > > through proactive monitoring or to reactive reports via the
>>> different
>>> > > > > channels we keep track of, but we simply can't scale up a direct
>>> > > support
>>> > > > > option for developers who want to be able to pick up the red
>>> phone and
>>> > > get
>>> > > > > someone on the line immediately when there are service issues. In
>>> terms
>>> > > of
>>> > > > > addressing service degradation without additional cost to
>>> developers,
>>> > > based
>>> > > > > on conversations we have had with developers, I believe that we
>>> are as
>>> > > good
>>> > > > > if not much better than the industry standard for platform,
>>> managed
>>> > > cloud
>>> > > > > hosting. There are companies who will always have a resource for
>>> you
>>> > > > > available, but there's a reason any kind of baseline production
>>> spend
>>> > > will
>>> > > > > be in the hundreds of dollars - minimum. We're doing our best to
>>> > > minimize
>>> > > > > costs, support all developers on our platform, all while not
>>> charging
>>> > > > > developers who don't require a response time SLA.
>>> >
>>> > > > > On Fri, Jul 9, 2010 at 2:24 PM, Daniel <
>>> [email protected]>
>>> > > wrote:
>>> > > > > > When I run the query
>>> > > Search_update.all().order('last_check').fetch(10)
>>> > > > > > programtically I consistently get this response:
>>> >
>>> > > > > > agtsb294aWktYmV0YXIVCxINU2VhcmNoX3VwZGF0ZRi62AUM 2010-07-09
>>> > > > > > 17:57:37.894714
>>> > > > > > agtsb294aWktYmV0YXIVCxINU2VhcmNoX3VwZGF0ZRjsm3kM 2010-07-08
>>> > > > > > 00:27:52.385926
>>> > > > > > agtsb294aWktYmV0YXIVCxINU2VhcmNoX3VwZGF0ZRipkjsM 2010-07-08
>>> > > > > > 00:27:53.689982
>>> > > > > > agtsb294aWktYmV0YXIWCxINU2VhcmNoX3VwZGF0ZRiqu7ABDA 2010-07-08
>>> > > > > > 00:27:54.616698
>>> > > > > > agtsb294aWktYmV0YXIVCxINU2VhcmNoX3VwZGF0ZRiTrVwM 2010-07-08
>>> > > > > > 00:27:55.453521
>>> > > > > > agtsb294aWktYmV0YXIVCxINU2VhcmNoX3VwZGF0ZRjksQUM 2010-07-08
>>> > > > > > 00:27:56.437609
>>> > > > > > agtsb294aWktYmV0YXIWCxINU2VhcmNoX3VwZGF0ZRjp_KwBDA 2010-07-08
>>> > > > > > 00:28:02.699297
>>> > > > > > agtsb294aWktYmV0YXIVCxINU2VhcmNoX3VwZGF0ZRiRqAUM 2010-07-08
>>> > > > > > 00:28:04.598150
>>> > > > > > agtsb294aWktYmV0YXIWCxINU2VhcmNoX3VwZGF0ZRjyzK8BDA 2010-07-08
>>> > > > > > 00:28:05.595406
>>> > > > > > agtsb294aWktYmV0YXIVCxINU2VhcmNoX3VwZGF0ZRi-2AUM 2010-07-08
>>> > > > > > 00:28:07.950788
>>> >
>>> > > > > > Which places the record in question first in the query although
>>> it
>>> > > has
>>> > > > > > a date later than the listed records.  You can also see that
>>> having
>>> > > > > > just run the response that the 2011 date reverted.  It appears
>>> to
>>> > > > > > change when you save it, but it doesn't actually change.
>>> >
>>> > > > > > On Jul 9, 5:14 pm, "Ikai L (Google)" <[email protected]>
>>> wrote:
>>> > > > > > > Using this GQL query in the admin console:
>>> >
>>> > > > > > > SELECT * FROM Search_update where
>>> > > > > > >
>>> __key__=KEY('agtsb294aWktYmV0YXIVCxINU2VhcmNoX3VwZGF0ZRi62AUM')
>>> >
>>> > > > > > > I was able to set the year to 2011, see the changes
>>> reflected, then
>>> > > set
>>> > > > > > them
>>> > > > > > > back to 2010 (I didn't want to cause issues with your
>>> application).
>>> > > How
>>> > > > > > are
>>> > > > > > > you reproducing your issues? Can you see if you can update
>>> the
>>> > > timestamp
>>> > > > > > in
>>> > > > > > > the datastore viewer?
>>> >
>>> > > > > > > On Fri, Jul 9, 2010 at 12:24 PM, Daniel <
>>> > > [email protected]>
>>> > > > > > wrote:
>>> > > > > > > > Thanks for the fast response.  The kind is Search_update.
>>> >
>>> > > > > > > > On Jul 9, 3:16 pm, "Ikai L (Google)" <[email protected]>
>>> wrote:
>>> > > > > > > > > Hi Daniel,
>>> >
>>> > > > > > > > > What is the Entity Kind?
>>> >
>>> > > > > > > > > The best thing I would recommend in the future is the
>>> billing
>>> > > support
>>> > > > > > > > form:
>>> >
>>> > >
>>> http://code.google.com/support/bin/request.py?contact_type=AppEngineB...
>>> >
>>> > > > > > > > > This is a monitored queue for issues like these, and I
>>> expect
>>> > > that we
>>> > > > > > > > will
>>> > > > > > > > > be emphasizing it more. We're not currently equipped to
>>> handle
>>> > > > > > dedicated
>>> > > > > > > > > support, though it is on our roadmap to offer paid
>>> support with
>>> > > an
>>> > > > > > SLA
>>> > > > > > > > for
>>> > > > > > > > > response time.
>>> >
>>> > > > > > > > > On Fri, Jul 9, 2010 at 12:10 PM, Daniel <
>>> > > [email protected]>
>>> > > > > > > > wrote:
>>> > > > > > > > > > I have a record which is frozen in the datastore and
>>> always
>>> > > shows
>>> > > > > > the
>>> > > > > > > > > > current time.  This record is blocking a major time
>>> sorted
>>> > > query in
>>> > > > > > my
>>> > > > > > > > > > application.  I've had this same problem in June
>>> (http://
>>> >
>>> > > groups.google.com/group/google-appengine/browse_thread/thread/
>>> > > > > > > > > > b0021ac81b8c24a5/dcf6c71e3e0b3083) and I had to get a
>>> tech to
>>> > > fix
>>> > > > > > it.
>>> > > > > > > > > > Please help me correct this record.  The app is
>>> looxii-beta
>>> > > and the
>>> > > > > > > > > > key is
>>> agtsb294aWktYmV0YXIVCxINU2VhcmNoX3VwZGF0ZRi62AUM.
>>> >
>>> > > > > > > > > > As an aside, it seems ridiculous to me that the
>>> database
>>> > > would not
>>> > > > > > > > > > perform as it should.  This is a major issue, and
>>> actually
>>> > > blocks
>>> > > > > > my
>>> > > > > > > > > > application from properly performing.  I accept that
>>> > > AppEngine is
>>> > > > > > in
>>> > > > > > > > > > beta, but at least give your paying customers a contact
>>> email
>>> > > > > > address
>>> > > > > > > > > > so that when we have legitimate issues we don't have to
>>> post
>>> > > to a
>>> > > > > > > > > > public forum and wait for a google rep to stumble upon
>>> our
>>> > > issue.
>>> >
>>> > > > > > > > > > --
>>> > > > > > > > > > You received this message because you are subscribed to
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>>> > > Google
>>> > > > > > > > Groups
>>> > > > > > > > > > "Google App Engine" group.
>>> > > > > > > > > > To post to this group, send email to
>>> > > > > > [email protected]
>>> > > > > > > > .
>>> > > > > > > > > > To unsubscribe from this group, send email to
>>> > > > > > > > > > [email protected]<google-appengine%[email protected]><google-appengine%2Bunsubscrib
>>> [email protected]><google-appengine%2Bunsubscrib
>>> > > [email protected]><google-appengine%2Bunsubscrib
>>> > > > > > [email protected]><google-appengine%2Bunsubscrib
>>> > > > > > > > [email protected]>
>>> > > > > > > > > > .
>>> > > > > > > > > > For more options, visit this group at...
>>> >
>>> > read more ยป
>>>
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>>>
>>
>>
>> --
>> Ikai Lan
>> Developer Programs Engineer, Google App Engine
>> Blog: http://googleappengine.blogspot.com
>> Twitter: http://twitter.com/app_engine
>> Reddit: http://www.reddit.com/r/appengine
>>
>>
>
>
> --
> Ikai Lan
> Developer Programs Engineer, Google App Engine
> Blog: http://googleappengine.blogspot.com
> Twitter: http://twitter.com/app_engine
> Reddit: http://www.reddit.com/r/appengine
>
>


-- 
Ikai Lan
Developer Programs Engineer, Google App Engine
Blog: http://googleappengine.blogspot.com
Twitter: http://twitter.com/app_engine
Reddit: http://www.reddit.com/r/appengine

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