(In reply to comment #0)

Deadlock found when trying to get lock; Try restarting transaction (10.0.6.39)
INSERT IGNORE INTO flaggedtemplates
(ft_rev_id,ft_namespace,ft_title,ft_tmp_rev_id)

When?

And how often?

Last 10 or 15 minutes on ruwiki seen on fenari

How often? Is it failing three times in the MW database.php deadlock loop (which actually causes the user to see an error)?

Was reported on the dberror logs on fenari

It seemed a rather large insert....

(In reply to comment #4)

How often? Is it failing three times in the MW database.php deadlock loop
(which actually causes the user to see an error)?

Note: these are logged by MW itself, so all errors are user visible.

*** Bug 26224 has been marked as a duplicate of this bug. ***

Tweaks in r87700.