*** This bug is a duplicate of bug 1593719 ***
https://bugs.launchpad.net/bugs/1593719
** This bug has been marked a duplicate of bug 1593719
StaleDataError: DELETE statement on table 'standardattributes' expected to
delete 1 row(s); 0 were matched
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https://bugs.launchpad.net/bugs/1597752
Title:
bulk requests may fail to clean up created resources on failure
Status in neutron:
Confirmed
Bug description:
When creating resources in bulk (either with native ml2 support, or
with emulated support in the base api controller), when an exception
occurs when creating one of requested resources, an effort is made to
clean up resources that were successfully created before the failure.
Sadly, sometimes an exception may occur during cleanup, that will
leave a resource in the database. For example, StaleDataError may be
raised from SQLAlchemy, for one because of our usage of
version_id_col; that state is fine and should be handled by retrying
the operation, but we don't, instead we just swallow the exception and
leave the resource to sit in the database.
We should apply retry mechanism to the cleanup phase to avoid that
scenario.
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