]> git.mxchange.org Git - friendica.git/commitdiff
DBClean moved as well
authorMichael <heluecht@pirati.ca>
Sat, 18 Nov 2017 05:45:44 +0000 (05:45 +0000)
committerMichael <heluecht@pirati.ca>
Sat, 18 Nov 2017 05:45:44 +0000 (05:45 +0000)
include/dbclean.php [deleted file]
src/Worker/Cron.php
src/Worker/DBClean.php [new file with mode: 0644]

diff --git a/include/dbclean.php b/include/dbclean.php
deleted file mode 100644 (file)
index 1e1dd90..0000000
+++ /dev/null
@@ -1,303 +0,0 @@
-<?php
-/**
- * @file include/dbclean.php
- * @brief The script is called from time to time to clean the database entries and remove orphaned data.
- */
-
-use Friendica\Core\Config;
-use Friendica\Core\Worker;
-
-function dbclean_run(&$argv, &$argc) {
-       if (!Config::get('system', 'dbclean', false)) {
-               return;
-       }
-
-       if ($argc == 2) {
-               $stage = intval($argv[1]);
-       } else {
-               $stage = 0;
-       }
-
-       // Get the expire days for step 8 and 9
-       $days = Config::get('system', 'dbclean-expire-days', 0);
-
-       if ($stage == 0) {
-               for ($i = 1; $i <= 9; $i++) {
-                       // Execute the background script for a step when it isn't finished.
-                       // Execute step 8 and 9 only when $days is defined.
-                       if (!Config::get('system', 'finished-dbclean-'.$i, false) && (($i < 8) || ($days > 0))) {
-                               Worker::add(PRIORITY_LOW, 'dbclean', $i);
-                       }
-               }
-       } else {
-               remove_orphans($stage);
-       }
-}
-
-/**
- * @brief Remove orphaned database entries
- * @param integer $stage What should be deleted?
- *
- * Values for $stage:
- * ------------------
- * 1:  Old global item entries from item table without user copy.
- * 2:  Items without parents.
- * 3:  Orphaned data from thread table.
- * 4:  Orphaned data from notify table.
- * 5:  Orphaned data from notify-threads table.
- * 6:  Orphaned data from sign table.
- * 7:  Orphaned data from term table.
- * 8:  Expired threads.
- * 9:  Old global item entries from expired threads
- */
-function remove_orphans($stage = 0) {
-       global $db;
-
-       $count = 0;
-
-       // We split the deletion in many small tasks
-       $limit = 1000;
-
-       // Get the expire days for step 8 and 9
-       $days = Config::get('system', 'dbclean-expire-days', 0);
-
-       if ($stage == 1) {
-               $last_id = Config::get('system', 'dbclean-last-id-1', 0);
-
-               logger("Deleting old global item entries from item table without user copy. Last ID: ".$last_id);
-               $r = dba::p("SELECT `id` FROM `item` WHERE `uid` = 0 AND
-                                       NOT EXISTS (SELECT `guid` FROM `item` AS `i` WHERE `item`.`guid` = `i`.`guid` AND `i`.`uid` != 0) AND
-                                       `received` < UTC_TIMESTAMP() - INTERVAL 90 DAY AND `id` >= ?
-                               ORDER BY `id` LIMIT ".intval($limit), $last_id);
-               $count = dba::num_rows($r);
-               if ($count > 0) {
-                       logger("found global item orphans: ".$count);
-                       while ($orphan = dba::fetch($r)) {
-                               $last_id = $orphan["id"];
-                               dba::delete('item', array('id' => $orphan["id"]));
-                       }
-               } else {
-                       logger("No global item orphans found");
-               }
-               dba::close($r);
-               logger("Done deleting ".$count." old global item entries from item table without user copy. Last ID: ".$last_id);
-
-               Config::set('system', 'dbclean-last-id-1', $last_id);
-       } elseif ($stage == 2) {
-               $last_id = Config::get('system', 'dbclean-last-id-2', 0);
-
-               logger("Deleting items without parents. Last ID: ".$last_id);
-               $r = dba::p("SELECT `id` FROM `item`
-                               WHERE NOT EXISTS (SELECT `id` FROM `item` AS `i` WHERE `item`.`parent` = `i`.`id`)
-                               AND `id` >= ? ORDER BY `id` LIMIT ".intval($limit), $last_id);
-               $count = dba::num_rows($r);
-               if ($count > 0) {
-                       logger("found item orphans without parents: ".$count);
-                       while ($orphan = dba::fetch($r)) {
-                               $last_id = $orphan["id"];
-                               dba::delete('item', array('id' => $orphan["id"]));
-                       }
-               } else {
-                       logger("No item orphans without parents found");
-               }
-               dba::close($r);
-               logger("Done deleting ".$count." items without parents. Last ID: ".$last_id);
-
-               Config::set('system', 'dbclean-last-id-2', $last_id);
-
-               if ($count < $limit) {
-                       Config::set('system', 'finished-dbclean-2', true);
-               }
-       } elseif ($stage == 3) {
-               $last_id = Config::get('system', 'dbclean-last-id-3', 0);
-
-               logger("Deleting orphaned data from thread table. Last ID: ".$last_id);
-               $r = dba::p("SELECT `iid` FROM `thread`
-                               WHERE NOT EXISTS (SELECT `id` FROM `item` WHERE `item`.`parent` = `thread`.`iid`) AND `iid` >= ?
-                               ORDER BY `iid` LIMIT ".intval($limit), $last_id);
-               $count = dba::num_rows($r);
-               if ($count > 0) {
-                       logger("found thread orphans: ".$count);
-                       while ($orphan = dba::fetch($r)) {
-                               $last_id = $orphan["iid"];
-                               dba::delete('thread', array('iid' => $orphan["iid"]));
-                       }
-               } else {
-                       logger("No thread orphans found");
-               }
-               dba::close($r);
-               logger("Done deleting ".$count." orphaned data from thread table. Last ID: ".$last_id);
-
-               Config::set('system', 'dbclean-last-id-3', $last_id);
-
-               if ($count < $limit) {
-                       Config::set('system', 'finished-dbclean-3', true);
-               }
-       } elseif ($stage == 4) {
-               $last_id = Config::get('system', 'dbclean-last-id-4', 0);
-
-               logger("Deleting orphaned data from notify table. Last ID: ".$last_id);
-               $r = dba::p("SELECT `iid`, `id` FROM `notify`
-                               WHERE NOT EXISTS (SELECT `id` FROM `item` WHERE `item`.`id` = `notify`.`iid`) AND `id` >= ?
-                               ORDER BY `id` LIMIT ".intval($limit), $last_id);
-               $count = dba::num_rows($r);
-               if ($count > 0) {
-                       logger("found notify orphans: ".$count);
-                       while ($orphan = dba::fetch($r)) {
-                               $last_id = $orphan["id"];
-                               dba::delete('notify', array('iid' => $orphan["iid"]));
-                       }
-               } else {
-                       logger("No notify orphans found");
-               }
-               dba::close($r);
-               logger("Done deleting ".$count." orphaned data from notify table. Last ID: ".$last_id);
-
-               Config::set('system', 'dbclean-last-id-4', $last_id);
-
-               if ($count < $limit) {
-                       Config::set('system', 'finished-dbclean-4', true);
-               }
-       } elseif ($stage == 5) {
-               $last_id = Config::get('system', 'dbclean-last-id-5', 0);
-
-               logger("Deleting orphaned data from notify-threads table. Last ID: ".$last_id);
-               $r = dba::p("SELECT `id` FROM `notify-threads`
-                               WHERE NOT EXISTS (SELECT `id` FROM `item` WHERE `item`.`parent` = `notify-threads`.`master-parent-item`) AND `id` >= ?
-                               ORDER BY `id` LIMIT ".intval($limit), $last_id);
-               $count = dba::num_rows($r);
-               if ($count > 0) {
-                       logger("found notify-threads orphans: ".$count);
-                       while ($orphan = dba::fetch($r)) {
-                               $last_id = $orphan["id"];
-                               dba::delete('notify-threads', array('id' => $orphan["id"]));
-                       }
-               } else {
-                       logger("No notify-threads orphans found");
-               }
-               dba::close($r);
-               logger("Done deleting ".$count." orphaned data from notify-threads table. Last ID: ".$last_id);
-
-               Config::set('system', 'dbclean-last-id-5', $last_id);
-
-               if ($count < $limit) {
-                       Config::set('system', 'finished-dbclean-5', true);
-               }
-       } elseif ($stage == 6) {
-               $last_id = Config::get('system', 'dbclean-last-id-6', 0);
-
-               logger("Deleting orphaned data from sign table. Last ID: ".$last_id);
-               $r = dba::p("SELECT `iid`, `id` FROM `sign`
-                               WHERE NOT EXISTS (SELECT `id` FROM `item` WHERE `item`.`id` = `sign`.`iid`) AND `id` >= ?
-                               ORDER BY `id` LIMIT ".intval($limit), $last_id);
-               $count = dba::num_rows($r);
-               if ($count > 0) {
-                       logger("found sign orphans: ".$count);
-                       while ($orphan = dba::fetch($r)) {
-                               $last_id = $orphan["id"];
-                               dba::delete('sign', array('iid' => $orphan["iid"]));
-                       }
-               } else {
-                       logger("No sign orphans found");
-               }
-               dba::close($r);
-               logger("Done deleting ".$count." orphaned data from sign table. Last ID: ".$last_id);
-
-               Config::set('system', 'dbclean-last-id-6', $last_id);
-
-               if ($count < $limit) {
-                       Config::set('system', 'finished-dbclean-6', true);
-               }
-       } elseif ($stage == 7) {
-               $last_id = Config::get('system', 'dbclean-last-id-7', 0);
-
-               logger("Deleting orphaned data from term table. Last ID: ".$last_id);
-               $r = dba::p("SELECT `oid`, `tid` FROM `term`
-                               WHERE NOT EXISTS (SELECT `id` FROM `item` WHERE `item`.`id` = `term`.`oid`) AND `tid` >= ?
-                               ORDER BY `tid` LIMIT ".intval($limit), $last_id);
-               $count = dba::num_rows($r);
-               if ($count > 0) {
-                       logger("found term orphans: ".$count);
-                       while ($orphan = dba::fetch($r)) {
-                               $last_id = $orphan["tid"];
-                               dba::delete('term', array('oid' => $orphan["oid"]));
-                       }
-               } else {
-                       logger("No term orphans found");
-               }
-               dba::close($r);
-               logger("Done deleting ".$count." orphaned data from term table. Last ID: ".$last_id);
-
-               Config::set('system', 'dbclean-last-id-7', $last_id);
-
-               if ($count < $limit) {
-                       Config::set('system', 'finished-dbclean-7', true);
-               }
-       } elseif ($stage == 8) {
-               if ($days <= 0) {
-                       return;
-               }
-
-               $last_id = Config::get('system', 'dbclean-last-id-8', 0);
-
-               logger("Deleting expired threads. Last ID: ".$last_id);
-               $r = dba::p("SELECT `thread`.`iid` FROM `thread`
-                                INNER JOIN `contact` ON `thread`.`contact-id` = `contact`.`id` AND NOT `notify_new_posts`
-                                WHERE `thread`.`received` < UTC_TIMESTAMP() - INTERVAL ? DAY
-                                        AND NOT `thread`.`mention` AND NOT `thread`.`starred`
-                                        AND NOT `thread`.`wall` AND NOT `thread`.`origin`
-                                        AND `thread`.`uid` != 0 AND `thread`.`iid` >= ?
-                                        AND NOT `thread`.`iid` IN (SELECT `parent` FROM `item`
-                                                        WHERE (`item`.`starred` OR (`item`.`resource-id` != '')
-                                                                OR (`item`.`file` != '') OR (`item`.`event-id` != '')
-                                                                OR (`item`.`attach` != '') OR `item`.`wall` OR `item`.`origin`)
-                                                                AND `item`.`parent` = `thread`.`iid`)
-                                ORDER BY `thread`.`iid` LIMIT 1000", $days, $last_id);
-               $count = dba::num_rows($r);
-               if ($count > 0) {
-                       logger("found expired threads: ".$count);
-                       while ($thread = dba::fetch($r)) {
-                               $last_id = $thread["iid"];
-                               dba::delete('thread', array('iid' => $thread["iid"]));
-                       }
-               } else {
-                       logger("No expired threads found");
-               }
-               dba::close($r);
-               logger("Done deleting ".$count." expired threads. Last ID: ".$last_id);
-
-               Config::set('system', 'dbclean-last-id-8', $last_id);
-       } elseif ($stage == 9) {
-               if ($days <= 0) {
-                       return;
-               }
-
-               $last_id = Config::get('system', 'dbclean-last-id-9', 0);
-               $till_id = Config::get('system', 'dbclean-last-id-8', 0);
-
-               logger("Deleting old global item entries from expired threads from ID ".$last_id." to ID ".$till_id);
-               $r = dba::p("SELECT `id` FROM `item` WHERE `uid` = 0 AND
-                                       NOT EXISTS (SELECT `guid` FROM `item` AS `i` WHERE `item`.`guid` = `i`.`guid` AND `i`.`uid` != 0) AND
-                                       `received` < UTC_TIMESTAMP() - INTERVAL 90 DAY AND `id` >= ? AND `id` <= ?
-                               ORDER BY `id` LIMIT ".intval($limit), $last_id, $till_id);
-               $count = dba::num_rows($r);
-               if ($count > 0) {
-                       logger("found global item entries from expired threads: ".$count);
-                       while ($orphan = dba::fetch($r)) {
-                               $last_id = $orphan["id"];
-                               dba::delete('item', array('id' => $orphan["id"]));
-                       }
-               } else {
-                       logger("No global item entries from expired threads");
-               }
-               dba::close($r);
-               logger("Done deleting ".$count." old global item entries from expired threads. Last ID: ".$last_id);
-
-               Config::set('system', 'dbclean-last-id-9', $last_id);
-       }
-
-       // Call it again if not all entries were purged
-       if (($stage != 0) && ($count > 0)) {
-               Worker::add(PRIORITY_MEDIUM, 'dbclean');
-       }
-}
index 810dca681f00fdc3e0191eb5c9bfcbc989a849b7..7b6e2ede1472e759f335624f56129426ebf61150 100644 (file)
@@ -78,7 +78,7 @@ Class Cron {
 
                        Worker::add(PRIORITY_LOW, 'expire');
 
-                       Worker::add(PRIORITY_MEDIUM, 'dbclean');
+                       Worker::add(PRIORITY_MEDIUM, 'DBClean');
 
                        Worker::add(PRIORITY_LOW, "cronjobs", "update_photo_albums");
 
diff --git a/src/Worker/DBClean.php b/src/Worker/DBClean.php
new file mode 100644 (file)
index 0000000..94295b0
--- /dev/null
@@ -0,0 +1,301 @@
+<?php
+/**
+ * @file src/Worker/DBClean.php
+ * @brief The script is called from time to time to clean the database entries and remove orphaned data.
+ */
+
+use Friendica\Core\Config;
+use Friendica\Core\Worker;
+use dba;
+
+class DBClean {
+       public static function execute($stage = 0) {
+
+               if (!Config::get('system', 'dbclean', false)) {
+                       return;
+               }
+
+               // Get the expire days for step 8 and 9
+               $days = Config::get('system', 'dbclean-expire-days', 0);
+
+               if ($stage == 0) {
+                       for ($i = 1; $i <= 9; $i++) {
+                               // Execute the background script for a step when it isn't finished.
+                               // Execute step 8 and 9 only when $days is defined.
+                               if (!Config::get('system', 'finished-dbclean-'.$i, false) && (($i < 8) || ($days > 0))) {
+                                       Worker::add(PRIORITY_LOW, 'DBClean', $i);
+                               }
+                       }
+               } else {
+                       self::removeOrphans($stage);
+               }
+       }
+
+       /**
+        * @brief Remove orphaned database entries
+        * @param integer $stage What should be deleted?
+        *
+        * Values for $stage:
+        * ------------------
+        * 1:   Old global item entries from item table without user copy.
+        * 2:   Items without parents.
+        * 3:   Orphaned data from thread table.
+        * 4:   Orphaned data from notify table.
+        * 5:   Orphaned data from notify-threads table.
+        * 6:   Orphaned data from sign table.
+        * 7:   Orphaned data from term table.
+        * 8:   Expired threads.
+        * 9:   Old global item entries from expired threads
+        */
+       private static function removeOrphans($stage = 0) {
+               global $db;
+
+               $count = 0;
+
+               // We split the deletion in many small tasks
+               $limit = 1000;
+
+               // Get the expire days for step 8 and 9
+               $days = Config::get('system', 'dbclean-expire-days', 0);
+
+               if ($stage == 1) {
+                       $last_id = Config::get('system', 'dbclean-last-id-1', 0);
+
+                       logger("Deleting old global item entries from item table without user copy. Last ID: ".$last_id);
+                       $r = dba::p("SELECT `id` FROM `item` WHERE `uid` = 0 AND
+                                               NOT EXISTS (SELECT `guid` FROM `item` AS `i` WHERE `item`.`guid` = `i`.`guid` AND `i`.`uid` != 0) AND
+                                               `received` < UTC_TIMESTAMP() - INTERVAL 90 DAY AND `id` >= ?
+                                       ORDER BY `id` LIMIT ".intval($limit), $last_id);
+                       $count = dba::num_rows($r);
+                       if ($count > 0) {
+                               logger("found global item orphans: ".$count);
+                               while ($orphan = dba::fetch($r)) {
+                                       $last_id = $orphan["id"];
+                                       dba::delete('item', array('id' => $orphan["id"]));
+                               }
+                       } else {
+                               logger("No global item orphans found");
+                       }
+                       dba::close($r);
+                       logger("Done deleting ".$count." old global item entries from item table without user copy. Last ID: ".$last_id);
+
+                       Config::set('system', 'dbclean-last-id-1', $last_id);
+               } elseif ($stage == 2) {
+                       $last_id = Config::get('system', 'dbclean-last-id-2', 0);
+
+                       logger("Deleting items without parents. Last ID: ".$last_id);
+                       $r = dba::p("SELECT `id` FROM `item`
+                                       WHERE NOT EXISTS (SELECT `id` FROM `item` AS `i` WHERE `item`.`parent` = `i`.`id`)
+                                       AND `id` >= ? ORDER BY `id` LIMIT ".intval($limit), $last_id);
+                       $count = dba::num_rows($r);
+                       if ($count > 0) {
+                               logger("found item orphans without parents: ".$count);
+                               while ($orphan = dba::fetch($r)) {
+                                       $last_id = $orphan["id"];
+                                       dba::delete('item', array('id' => $orphan["id"]));
+                               }
+                       } else {
+                               logger("No item orphans without parents found");
+                       }
+                       dba::close($r);
+                       logger("Done deleting ".$count." items without parents. Last ID: ".$last_id);
+
+                       Config::set('system', 'dbclean-last-id-2', $last_id);
+
+                       if ($count < $limit) {
+                               Config::set('system', 'finished-dbclean-2', true);
+                       }
+               } elseif ($stage == 3) {
+                       $last_id = Config::get('system', 'dbclean-last-id-3', 0);
+
+                       logger("Deleting orphaned data from thread table. Last ID: ".$last_id);
+                       $r = dba::p("SELECT `iid` FROM `thread`
+                                       WHERE NOT EXISTS (SELECT `id` FROM `item` WHERE `item`.`parent` = `thread`.`iid`) AND `iid` >= ?
+                                       ORDER BY `iid` LIMIT ".intval($limit), $last_id);
+                       $count = dba::num_rows($r);
+                       if ($count > 0) {
+                               logger("found thread orphans: ".$count);
+                               while ($orphan = dba::fetch($r)) {
+                                       $last_id = $orphan["iid"];
+                                       dba::delete('thread', array('iid' => $orphan["iid"]));
+                               }
+                       } else {
+                               logger("No thread orphans found");
+                       }
+                       dba::close($r);
+                       logger("Done deleting ".$count." orphaned data from thread table. Last ID: ".$last_id);
+
+                       Config::set('system', 'dbclean-last-id-3', $last_id);
+
+                       if ($count < $limit) {
+                               Config::set('system', 'finished-dbclean-3', true);
+                       }
+               } elseif ($stage == 4) {
+                       $last_id = Config::get('system', 'dbclean-last-id-4', 0);
+
+                       logger("Deleting orphaned data from notify table. Last ID: ".$last_id);
+                       $r = dba::p("SELECT `iid`, `id` FROM `notify`
+                                       WHERE NOT EXISTS (SELECT `id` FROM `item` WHERE `item`.`id` = `notify`.`iid`) AND `id` >= ?
+                                       ORDER BY `id` LIMIT ".intval($limit), $last_id);
+                       $count = dba::num_rows($r);
+                       if ($count > 0) {
+                               logger("found notify orphans: ".$count);
+                               while ($orphan = dba::fetch($r)) {
+                                       $last_id = $orphan["id"];
+                                       dba::delete('notify', array('iid' => $orphan["iid"]));
+                               }
+                       } else {
+                               logger("No notify orphans found");
+                       }
+                       dba::close($r);
+                       logger("Done deleting ".$count." orphaned data from notify table. Last ID: ".$last_id);
+
+                       Config::set('system', 'dbclean-last-id-4', $last_id);
+
+                       if ($count < $limit) {
+                               Config::set('system', 'finished-dbclean-4', true);
+                       }
+               } elseif ($stage == 5) {
+                       $last_id = Config::get('system', 'dbclean-last-id-5', 0);
+
+                       logger("Deleting orphaned data from notify-threads table. Last ID: ".$last_id);
+                       $r = dba::p("SELECT `id` FROM `notify-threads`
+                                       WHERE NOT EXISTS (SELECT `id` FROM `item` WHERE `item`.`parent` = `notify-threads`.`master-parent-item`) AND `id` >= ?
+                                       ORDER BY `id` LIMIT ".intval($limit), $last_id);
+                       $count = dba::num_rows($r);
+                       if ($count > 0) {
+                               logger("found notify-threads orphans: ".$count);
+                               while ($orphan = dba::fetch($r)) {
+                                       $last_id = $orphan["id"];
+                                       dba::delete('notify-threads', array('id' => $orphan["id"]));
+                               }
+                       } else {
+                               logger("No notify-threads orphans found");
+                       }
+                       dba::close($r);
+                       logger("Done deleting ".$count." orphaned data from notify-threads table. Last ID: ".$last_id);
+
+                       Config::set('system', 'dbclean-last-id-5', $last_id);
+
+                       if ($count < $limit) {
+                               Config::set('system', 'finished-dbclean-5', true);
+                       }
+               } elseif ($stage == 6) {
+                       $last_id = Config::get('system', 'dbclean-last-id-6', 0);
+
+                       logger("Deleting orphaned data from sign table. Last ID: ".$last_id);
+                       $r = dba::p("SELECT `iid`, `id` FROM `sign`
+                                       WHERE NOT EXISTS (SELECT `id` FROM `item` WHERE `item`.`id` = `sign`.`iid`) AND `id` >= ?
+                                       ORDER BY `id` LIMIT ".intval($limit), $last_id);
+                       $count = dba::num_rows($r);
+                       if ($count > 0) {
+                               logger("found sign orphans: ".$count);
+                               while ($orphan = dba::fetch($r)) {
+                                       $last_id = $orphan["id"];
+                                       dba::delete('sign', array('iid' => $orphan["iid"]));
+                               }
+                       } else {
+                               logger("No sign orphans found");
+                       }
+                       dba::close($r);
+                       logger("Done deleting ".$count." orphaned data from sign table. Last ID: ".$last_id);
+
+                       Config::set('system', 'dbclean-last-id-6', $last_id);
+
+                       if ($count < $limit) {
+                               Config::set('system', 'finished-dbclean-6', true);
+                       }
+               } elseif ($stage == 7) {
+                       $last_id = Config::get('system', 'dbclean-last-id-7', 0);
+
+                       logger("Deleting orphaned data from term table. Last ID: ".$last_id);
+                       $r = dba::p("SELECT `oid`, `tid` FROM `term`
+                                       WHERE NOT EXISTS (SELECT `id` FROM `item` WHERE `item`.`id` = `term`.`oid`) AND `tid` >= ?
+                                       ORDER BY `tid` LIMIT ".intval($limit), $last_id);
+                       $count = dba::num_rows($r);
+                       if ($count > 0) {
+                               logger("found term orphans: ".$count);
+                               while ($orphan = dba::fetch($r)) {
+                                       $last_id = $orphan["tid"];
+                                       dba::delete('term', array('oid' => $orphan["oid"]));
+                               }
+                       } else {
+                               logger("No term orphans found");
+                       }
+                       dba::close($r);
+                       logger("Done deleting ".$count." orphaned data from term table. Last ID: ".$last_id);
+
+                       Config::set('system', 'dbclean-last-id-7', $last_id);
+
+                       if ($count < $limit) {
+                               Config::set('system', 'finished-dbclean-7', true);
+                       }
+               } elseif ($stage == 8) {
+                       if ($days <= 0) {
+                               return;
+                       }
+
+                       $last_id = Config::get('system', 'dbclean-last-id-8', 0);
+
+                       logger("Deleting expired threads. Last ID: ".$last_id);
+                       $r = dba::p("SELECT `thread`.`iid` FROM `thread`
+                                       INNER JOIN `contact` ON `thread`.`contact-id` = `contact`.`id` AND NOT `notify_new_posts`
+                                       WHERE `thread`.`received` < UTC_TIMESTAMP() - INTERVAL ? DAY
+                                               AND NOT `thread`.`mention` AND NOT `thread`.`starred`
+                                               AND NOT `thread`.`wall` AND NOT `thread`.`origin`
+                                               AND `thread`.`uid` != 0 AND `thread`.`iid` >= ?
+                                               AND NOT `thread`.`iid` IN (SELECT `parent` FROM `item`
+                                                               WHERE (`item`.`starred` OR (`item`.`resource-id` != '')
+                                                                       OR (`item`.`file` != '') OR (`item`.`event-id` != '')
+                                                                       OR (`item`.`attach` != '') OR `item`.`wall` OR `item`.`origin`)
+                                                                       AND `item`.`parent` = `thread`.`iid`)
+                                       ORDER BY `thread`.`iid` LIMIT 1000", $days, $last_id);
+                       $count = dba::num_rows($r);
+                       if ($count > 0) {
+                               logger("found expired threads: ".$count);
+                               while ($thread = dba::fetch($r)) {
+                                       $last_id = $thread["iid"];
+                                       dba::delete('thread', array('iid' => $thread["iid"]));
+                               }
+                       } else {
+                               logger("No expired threads found");
+                       }
+                       dba::close($r);
+                       logger("Done deleting ".$count." expired threads. Last ID: ".$last_id);
+
+                       Config::set('system', 'dbclean-last-id-8', $last_id);
+               } elseif ($stage == 9) {
+                       if ($days <= 0) {
+                               return;
+                       }
+
+                       $last_id = Config::get('system', 'dbclean-last-id-9', 0);
+                       $till_id = Config::get('system', 'dbclean-last-id-8', 0);
+
+                       logger("Deleting old global item entries from expired threads from ID ".$last_id." to ID ".$till_id);
+                       $r = dba::p("SELECT `id` FROM `item` WHERE `uid` = 0 AND
+                                               NOT EXISTS (SELECT `guid` FROM `item` AS `i` WHERE `item`.`guid` = `i`.`guid` AND `i`.`uid` != 0) AND
+                                               `received` < UTC_TIMESTAMP() - INTERVAL 90 DAY AND `id` >= ? AND `id` <= ?
+                                       ORDER BY `id` LIMIT ".intval($limit), $last_id, $till_id);
+                       $count = dba::num_rows($r);
+                       if ($count > 0) {
+                               logger("found global item entries from expired threads: ".$count);
+                               while ($orphan = dba::fetch($r)) {
+                                       $last_id = $orphan["id"];
+                                       dba::delete('item', array('id' => $orphan["id"]));
+                               }
+                       } else {
+                               logger("No global item entries from expired threads");
+                       }
+                       dba::close($r);
+                       logger("Done deleting ".$count." old global item entries from expired threads. Last ID: ".$last_id);
+
+                       Config::set('system', 'dbclean-last-id-9', $last_id);
+               }
+
+               // Call it again if not all entries were purged
+               if (($stage != 0) && ($count > 0)) {
+                       Worker::add(PRIORITY_MEDIUM, 'dbclean');
+               }
+       }
+}