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-rw-r--r--include/functions_user.inc.php10
1 files changed, 8 insertions, 2 deletions
diff --git a/include/functions_user.inc.php b/include/functions_user.inc.php
index 63925cfd8..eedd53af5 100644
--- a/include/functions_user.inc.php
+++ b/include/functions_user.inc.php
@@ -446,6 +446,9 @@ DELETE FROM '.USER_CACHE_CATEGORIES_TABLE.'
WHERE user_id = '.$userdata['id'];
pwg_query($query);
+ // Due to concurrency issues, we ask MySQL to ignore errors on
+ // insert. This may happen when cache needs refresh and that Piwigo is
+ // called "very simultaneously".
mass_inserts
(
USER_CACHE_CATEGORIES_TABLE,
@@ -454,7 +457,8 @@ DELETE FROM '.USER_CACHE_CATEGORIES_TABLE.'
'user_id', 'cat_id',
'date_last', 'max_date_last', 'nb_images', 'count_images', 'count_categories'
),
- $user_cache_cats
+ $user_cache_cats,
+ array('ignore' => true)
);
@@ -464,8 +468,10 @@ DELETE FROM '.USER_CACHE_TABLE.'
WHERE user_id = '.$userdata['id'];
pwg_query($query);
+ // for the same reason as user_cache_categories, we ignore error on
+ // this insert
$query = '
-INSERT INTO '.USER_CACHE_TABLE.'
+INSERT IGNORE INTO '.USER_CACHE_TABLE.'
(user_id, need_update, cache_update_time, forbidden_categories, nb_total_images,
image_access_type, image_access_list)
VALUES