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rate limit notifications push-message-cleanup to once per hour as they lock the notifications table and block each other
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@ -121,6 +121,14 @@ class notifications_push implements Json\PushBackend
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*/
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*/
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protected static function cleanup_push_msgs()
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protected static function cleanup_push_msgs()
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{
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{
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// rate limit the deletes: max. once per hour for the instance
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$stamp = date('YmdH');
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if (Api\Cache::getInstance(__CLASS__, __FUNCTION__) === $stamp)
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{
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return;
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}
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Api\Cache::setInstance(__CLASS__, __FUNCTION__, $stamp);
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if (($ts = self::$db->from_unixtime(Api\Session::heartbeat_limit())))
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if (($ts = self::$db->from_unixtime(Api\Session::heartbeat_limit())))
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{
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{
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try {
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try {
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