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mimic: mon: paxos: introduce new reset_pending_committing_finishers for safety #28540

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merged 1 commit into from Jul 1, 2019

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@pdvian
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pdvian commented Jun 14, 2019

There are asserts about the state of the system and pending_finishers which can
be triggered by running arbitrary commands through again. They are correct
when not restarting, but when we do restart we need to take care to preserve
the same invariants as appropriate. Use this function to be careful about
the order of committing_finishers v pending_finishers and to make sure they're
both empty before any Contexts actually get called.

We also reorder a call to finish_contexts on the waiting_for_writeable list for
similar reasons.

Fixes: http://tracker.ceph.com/issues/39484

Signed-off-by: Greg Farnum <gfarnum@redhat.com>
(cherry picked from commit b17caec)
@tchaikov tchaikov added this to the mimic milestone Jun 14, 2019
@smithfarm smithfarm added the mon label Jun 15, 2019
@smithfarm smithfarm requested review from tchaikov and gregsfortytwo Jun 15, 2019
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Reviewed-by: Greg Farnum gfarnum@redhat.com

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yuriw commented Jun 26, 2019

@yuriw yuriw merged commit e9f354d into ceph:mimic Jul 1, 2019
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