To close this thread, It turns out that XG transactions are not turned on
automatically; it is controlled per transaction and an API has to be called
first to do this. This is explained in the documentation but I had missed
it, sorry... After I turned the XG on, things work as expected on the
It may be not your problem but this same error happened if you are with
Java and using GAE SDK 1.5.5 because Google included jar
datanucleus-appengine.1.0.9 by mistake (where XG transactions are not
supported). They notice and ask you to update that jar to
datanucleous-appengine.1.0.10final ,
Thanks Juna,
I am in Python and I have only one entity group of my own in this case.
Could somebody from Google comment what the expected behavior should
be and whether the SDK server has been retrofitted to support XG
transactions?
Thanks,
PK
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