While this won't prevent the deadlock, it should catch the case where
a deadlock causes the DB update to fail and provide feedback to the user
and rollback the transaction
I don't know how to trigger the deadlock, I can only confirm that we see it, and
that this should catch it.
To test:
1 - Apply patches
2 - Checkout several items to a patron
3 - Confirm that 'Renew all' feature continues to work as expected and all items are renewed
Signed-off-by: David Nind <david@davidnind.com>
Signed-off-by: Marcel de Rooy <m.de.rooy@rijksmuseum.nl>
Bug 26457: Unit test
Signed-off-by: David Nind <david@davidnind.com>
Signed-off-by: Marcel de Rooy <m.de.rooy@rijksmuseum.nl>
Bug 26457: (QA follow-up) Switch to PK index in UPDATE on issues
The deadlock reports tell us that multiple transactions are
waiting for a X lock on a record but using a secondary index
on borrowernumber and itemnumber. Since we have the issue_id
at hand already, we should use that and benefit from the clustered
index (on PK) instead of using a secondary index.
Signed-off-by: Marcel de Rooy <m.de.rooy@rijksmuseum.nl>
Signed-off-by: Victor Grousset/tuxayo <victor@tuxayo.net>
Nick Clemens