ScopedCollection:CollectionResource:#branch_merge_proposal-page-resource (landing candidates) dying from late evaluation of security rules

[Robert Collins]

OOPS-61c47ad2db8192800bc7f2df619a7c64
https://api.launchpad.net/1.0/%7Eubuntuone-pqm-team/ubuntuone-servers/trunk-2a/landing_candidates

Is dying the death of a thousand cuts as each element in the whole batch is checked and rechecked for access permission. (Once from the batch, once from

  File "/srv/launchpad.net/production/launchpad-rev-15679/lib/lp/services/webapp/publisher.py", line 584, in canonical_urldata_iterator
    current_object = urldata.inside
  File "/srv/launchpad.net/production/launchpad-rev-15679/lib/lp/services/webapp/metazcml.py", line 396, in inside
    return getattr(self.context, attribute_to_parent)
  File "/srv/launchpad.net/production/launchpad-rev-15679/lib/lp/services/database/sqlbase.py", line 544, in block_implicit_flushes_decorator

and probably two other cases I haven't tracked down.

This /may/ be a new-access-code regression, or it may be that the data set in question has finally tipped over the edge.

[Francis J. Lacoste (flacoste)]

The hard timeout on this call was increased to 9s to alleviate this issue.

[Launchpad QA Bot (lpqabot)]

Fixed in stable r15927 (http://bazaar.launchpad.net/~launchpad-pqm/launchpad/stable/revision/15927) by a commit, but not testable.