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gc inboxes on a regular basis

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This commit is contained in:
Evan Prodromou 2009-07-09 19:35:50 -04:00
parent c07c4b2050
commit da512ad8c2
3 changed files with 42 additions and 39 deletions
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1
classes/Notice.php
View File

@ -875,6 +875,7 @@ class Notice extends Memcached_DataObject
}
$qry .= '('.$id.', '.$this->id.', '.$source.', "'.$this->created.'") ';
$cnt++;
Notice_inbox::gc($id);
if ($cnt >= MAX_BOXCARS) {
$inbox = new Notice_inbox();
$inbox->query($qry);

40
classes/Notice_inbox.php
View File

@ -24,6 +24,9 @@ require_once INSTALLDIR.'/classes/Memcached_DataObject.php';
// We keep 5 pages of inbox notices in memcache, +1 for pagination check
define('INBOX_CACHE_WINDOW', 101);
define('NOTICE_INBOX_GC_BOXCAR', 128);
define('NOTICE_INBOX_GC_MAX', 12800);
define('NOTICE_INBOX_LIMIT', 1000);
define('NOTICE_INBOX_SOURCE_SUB', 1);
define('NOTICE_INBOX_SOURCE_GROUP', 2);
@ -100,4 +103,41 @@ class Notice_inbox extends Memcached_DataObject
{
return Memcached_DataObject::pkeyGet('Notice_inbox', $kv);
}
static function gc($user_id)
{
$entry = new Notice_inbox();
$entry->user_id = $user_id;
$entry->orderBy('created DESC');
$entry->limit(NOTICE_INBOX_LIMIT - 1, NOTICE_INBOX_GC_MAX);
$total = $entry->find();
if ($total > 0) {
$notices = array();
$cnt = 0;
while ($entry->fetch()) {
$notices[] = $entry->notice_id;
$cnt++;
if ($cnt >= NOTICE_INBOX_GC_BOXCAR) {
self::deleteMatching($user_id, $notices);
$notices = array();
$cnt = 0;
}
}
if ($cnt > 0) {
self::deleteMatching($user_id, $notices);
$notices = array();
}
}
}
static function deleteMatching($user_id, $notices)
{
$entry = new Notice_inbox();
return $entry->query('DELETE FROM notice_inbox '.
'WHERE user_id = ' . $user_id . ' ' .
'AND notice_id in ('.implode(',', $notices).')');
}
}

40
scripts/triminboxes.php
View File

@ -52,43 +52,5 @@ if (!empty($id)) {
$cnt = $user->find();
while ($user->fetch()) {
$inbox_entry = new Notice_inbox();
$inbox_entry->user_id = $user->id;
$inbox_entry->orderBy('created DESC');
$inbox_entry->limit(1000, 1);
$id = null;
if ($inbox_entry->find(true)) {
$id = $inbox_entry->notice_id;
}
$inbox_entry->free();
unset($inbox_entry);
if (is_null($id)) {
continue;
}
$start = microtime(true);
$old_inbox = new Notice_inbox();
$cnt = $old_inbox->query('DELETE from notice_inbox WHERE user_id = ' . $user->id . ' AND notice_id < ' . $id);
$old_inbox->free();
unset($old_inbox);
print "Deleted $cnt notices for $user->nickname ($user->id).\n";
$finish = microtime(true);
$delay = 3.0 * ($finish - $start);
print "Delaying $delay seconds...";
// Wait to let slaves catch up
usleep($delay * 1000000);
print "DONE.\n";
Notice_inbox::gc($user->id);
}