Warning: pg_query(): Query failed: ERROR:  deadlock detected
DETAIL:  Process 3861847 waits for ShareLock on transaction 325446731; blocked by process 3861854.
Process 3861854 waits for ShareLock on transaction 325446729; blocked by process 3861847.
HINT:  See server log for query details.
CONTEXT:  while updating tuple (0,64) in relation "drupal_cache" in /var/www/html/mdm/includes/database.pgsql.inc on line 138

Warning: ERROR:  deadlock detected
DETAIL:  Process 3861847 waits for ShareLock on transaction 325446731; blocked by process 3861854.
Process 3861854 waits for ShareLock on transaction 325446729; blocked by process 3861847.
HINT:  See server log for query details.
CONTEXT:  while updating tuple (0,64) in relation "drupal_cache"
query: UPDATE drupal_cache SET data = 'a:2259:{s:8:"site_403";s:0:"";s:8:"site_404";s:0:"";s:11:"error_level";s:1:"0";s:33:"cron_export_xml_grpappeltaxon_tmp";i:1776867309;s:25:"cron_export_xml_methode_4";i:1776199484;s:13:"menu_expanded";a:0:{}s:19:"rules_inactive_sets";a:366:{i:1;s:20:"event_comment_update";i:2;s:20:"event_comment_delete";i:3;s:18:"event_comment_view";i:4;s:21:"event_comment_publish";i:5;s:23:"event_comment_unpublish";i:8;s:18:"event_node_presave";i:9;s:15:"event_node_view";i:10;s:17:"even in /var/www/html/mdm/includes/database.pgsql.inc on line 159