Hello Johan,

I just reproduced the issue from within the datastore admin tool (no
queued tasks, nothing external operating on this record)

1.  Go to this record:
https://appengine.google.com/datastore/edit?app_id=streamingservicesplatform&namespace=&version_id=338.351619451003591871&key=ahlzdHJlYW1pbmdzZXJ2aWNlc3BsYXRmb3JtcjALEgpTU1BBcnRpY2xlIiBjNGJmMDA5Mzk4Yjk0NTFjMTY2YzFiMmQwMWJkZjE5ZAw
2.  The Link is this:  http://indiatoday.intoday.in/site/Story/143334/Cover
Story/http://indiatoday.intoday.in/site/story/upa-paralysed-decision-
making-process-collapse-in-credibility-and-stall-in-governance
  Change it to this:
http://indiatoday.intoday.in/site/story/upa-paralysed-decision-making-process-collapse-in-credibility-and-stall-in-governance
3.  Click 'save entity'
4.  Wait 5 minutes.
5.  Entity reverts.

Any insight or additional items you would like me to try would be
appreciated.


On Jul 5, 2:44 am, Johan Euphrosine <pro...@google.com> wrote:
> Hi Tirrel,
>
> What happened when you tried to read the record just after writing, 1
> minute later, 2 minute later, etc until 5 minutes ?
>
> Are you sure that your application code doesn't interact with the
> datastore on the same record elsewhere, on a request, tasksqueue or a
> cron job ?
>
> We are currently monitoring your application, please try to reproduce
> this issue so we can a closer look at what is happening.
>
> Thanks in advance.
>
>
>
>
>
>
>
>
>
> On Tue, Jul 5, 2011 at 10:10 AM, Tirrell Payton <tpay...@bt-software.net> 
> wrote:
> > Indeed but thats the best way to be sure:
> > 1.  See behavior in code.  Troubleshoot code.  Same result.
> > 2.  Test behavior with remote api.  Update record via remote api.
> > Same result.
> > 3.  Test behavior directly in datastore admin.  Same result.
>
> > Testing in the datastore admin quickly gets us through 'check your
> > code' 'check the cache' 'can we see a code snippet', etc.
> > Moreover, it ensures the good people at google are able to replicate
> > the issue under the same circumstances as laid out at the beginning.
>
> > On Jul 4, 11:06 pm, "Brandon Wirtz" <drak...@digerat.com> wrote:
> >> I view the DataStore Administrator as a "in case of emergency break glass
> >> and slit your wrists" tool.
>
> >> -----Original Message-----
> >> From: google-appengine@googlegroups.com
>
> >> [mailto:google-appengine@googlegroups.com] On Behalf Of Tirrell Payton
> >> Sent: Monday, July 04, 2011 9:40 PM
> >> To: Google App Engine
> >> Subject: [google-appengine] Re: Database opaquely rolling back changes
>
> >> There is no code.  I am doing this in the datastore administrator.
> >> Select a record, update the field, click 'save entity'
>
> >> On Jul 4, 9:09 pm, Robert Kluin <robert.kl...@gmail.com> wrote:
> >> > I'm guessing you've got a cache issue too. Either the changes you
> >> > think are getting committed aren't (and your returning / caching) non
> >> > committed data, or your seeing old cached data served.
>
> >> > Could you show us the actual code you use to save and fetch the results?
>
> >> > Robert
> >> > On Jul 4, 2011 1:04 PM, "Tirrell Payton" <tpay...@bt-software.net>
> >> > wrote:> APPID: streamingservicesplatform.appspot.com
>
> >> > > Database opaquely rolls back changes.
> >> > > To reproduce:
>
> >> > > Bring up record:
>
> >> > ahlzdHJlYW1pbmdzZXJ2aWNlc3BsYXRmb3JtcjALEgpTU1BBcnRpY2xlIiBjNGJmMDA5Mz
> >> > k4Yjk 0NTFjMTY2YzFiMmQwMWJkZjE5ZAw
>
> >> > > Change the link from this:
>
> >> >http://indiatoday.intoday.in/site/Story/143334/Cover>
> >> > Story/http://indiatoday.intoday.in/site/story/upa-paralysed-decision-
> >> > > making-process-collapse-in-credibility-and-stall-in-governance
>
> >> > > to this:
>
> >> >http://indiatoday.intoday.in/site/story/upa-paralysed-decision-making...
>
> >> > > Wait 5 minutes.
>
> >> > > Bring up record:
>
> >> > ahlzdHJlYW1pbmdzZXJ2aWNlc3BsYXRmb3JtcjALEgpTU1BBcnRpY2xlIiBjNGJmMDA5Mz
> >> > k4Yjk 0NTFjMTY2YzFiMmQwMWJkZjE5ZAw
>
> >> > > Expected result, changes to the link are still there.
> >> > > Actual result, database has 'rolled back' to the previous version of
> >> > > this record.
>
> >> > > --
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>
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>
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>
> >> --
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> --
> Johan Euphrosine (proppy)
> Developer Programs Engineer
> Google Developer Relations

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