Improved performance when updating contacts

database.sql

@@ -1,6 +1,6 @@
 -- ------------------------------------------
 -- Friendica 2022.09-dev (Giant Rhubarb)
--- DB_UPDATE_VERSION 1479
+-- DB_UPDATE_VERSION 1480
 -- ------------------------------------------
 
 
@@ -141,12 +141,14 @@ CREATE TABLE IF NOT EXISTS `contact` (
 	`poll` varchar(255) COMMENT '',
 	`subscribe` varchar(255) COMMENT '',
 	`last-update` datetime NOT NULL DEFAULT '0001-01-01 00:00:00' COMMENT 'Date of the last try to update the contact info',
+	`next-update` datetime COMMENT 'Next connection request',
 	`success_update` datetime NOT NULL DEFAULT '0001-01-01 00:00:00' COMMENT 'Date of the last successful contact update',
 	`failure_update` datetime NOT NULL DEFAULT '0001-01-01 00:00:00' COMMENT 'Date of the last failed update',
 	`failed` boolean COMMENT 'Connection failed',
 	`term-date` datetime NOT NULL DEFAULT '0001-01-01 00:00:00' COMMENT '',
 	`last-item` datetime NOT NULL DEFAULT '0001-01-01 00:00:00' COMMENT 'date of the last post',
 	`last-discovery` datetime NOT NULL DEFAULT '0001-01-01 00:00:00' COMMENT 'date of the last follower discovery',
+	`local-data` boolean COMMENT 'Is true when there are posts with this contact on the system',
 	`blocked` boolean NOT NULL DEFAULT '1' COMMENT 'Node-wide block status',
 	`block_reason` text COMMENT 'Node-wide block reason',
 	`readonly` boolean NOT NULL DEFAULT '0' COMMENT 'posts of the contact are readonly',
@@ -213,6 +215,8 @@ CREATE TABLE IF NOT EXISTS `contact` (
 	 INDEX `attag_uid` (`attag`(96),`uid`),
 	 INDEX `network_uid_lastupdate` (`network`,`uid`,`last-update`),
 	 INDEX `uid_network_self_lastupdate` (`uid`,`network`,`self`,`last-update`),
+	 INDEX `next-update` (`next-update`),
+	 INDEX `local-data-next-update` (`local-data`,`next-update`),
 	 INDEX `uid_lastitem` (`uid`,`last-item`),
 	 INDEX `baseurl` (`baseurl`(64)),
 	 INDEX `uid_contact-type` (`uid`,`contact-type`),

doc/database/db_contact.md

@@ -34,12 +34,14 @@ Fields
 | poll                      |                                                                                                                | varchar(255)       | YES  |     | NULL                |                |
 | subscribe                 |                                                                                                                | varchar(255)       | YES  |     | NULL                |                |
 | last-update               | Date of the last try to update the contact info                                                                | datetime           | NO   |     | 0001-01-01 00:00:00 |                |
+| next-update               | Next connection request                                                                                        | datetime           | YES  |     | NULL                |                |
 | success_update            | Date of the last successful contact update                                                                     | datetime           | NO   |     | 0001-01-01 00:00:00 |                |
 | failure_update            | Date of the last failed update                                                                                 | datetime           | NO   |     | 0001-01-01 00:00:00 |                |
 | failed                    | Connection failed                                                                                              | boolean            | YES  |     | NULL                |                |
 | term-date                 |                                                                                                                | datetime           | NO   |     | 0001-01-01 00:00:00 |                |
 | last-item                 | date of the last post                                                                                          | datetime           | NO   |     | 0001-01-01 00:00:00 |                |
 | last-discovery            | date of the last follower discovery                                                                            | datetime           | NO   |     | 0001-01-01 00:00:00 |                |
+| local-data                | Is true when there are posts with this contact on the system                                                   | boolean            | YES  |     | NULL                |                |
 | blocked                   | Node-wide block status                                                                                         | boolean            | NO   |     | 1                   |                |
 | block_reason              | Node-wide block reason                                                                                         | text               | YES  |     | NULL                |                |
 | readonly                  | posts of the contact are readonly                                                                              | boolean            | NO   |     | 0                   |                |
@@ -112,6 +114,8 @@ Indexes
 | attag_uid                   | attag(96), uid                       |
 | network_uid_lastupdate      | network, uid, last-update            |
 | uid_network_self_lastupdate | uid, network, self, last-update      |
+| next-update                 | next-update                          |
+| local-data-next-update      | local-data, next-update              |
 | uid_lastitem                | uid, last-item                       |
 | baseurl                     | baseurl(64)                          |
 | uid_contact-type            | uid, contact-type                    |

src/Model/Contact.php

@@ -2339,6 +2339,47 @@ class Contact
 		return self::updateFromProbeArray($id, $ret);
 	}
 
+	/**
+	 * Checks if the given contact has got local data
+	 *
+	 * @param int   $id
+	 * @param array $contact
+	 *
+	 * @return boolean
+	 */
+	private static function hasLocalData(int $id, array $contact): bool
+	{
+		if (!empty($contact['uri-id']) && DBA::exists('contact', ["`uri-id` = ? AND `uid` != ?", $contact['uri-id'], 0])) {
+			// User contacts with the same uri-id exist
+			return true;
+		} elseif (DBA::exists('contact', ["`nurl` = ? AND `uid` != ?", Strings::normaliseLink($contact['url']), 0])) {
+			// User contacts with the same nurl exists (compatibility mode for systems with missing uri-id values)
+			return true;
+		}
+		if (DBA::exists('post-tag', ['cid' => $id])) {
+			// Is tagged in a post
+			return true;
+		}
+		if (DBA::exists('user-contact', ['cid' => $id])) {
+			// Has got user-contact data
+			return true;
+		}
+		if (Post::exists(['author-id' => $id])) {
+			// Posts with this author exist
+			return true;
+		}
+		if (Post::exists(['owner-id' => $id])) {
+			// Posts with this owner exist
+			return true;
+		}
+		if (Post::exists(['causer-id' => $id])) {
+			// Posts with this causer exist
+			return true;
+		}
+		// We don't have got this contact locally
+		return false;
+	}
+
 	/**
 	 * Updates contact record by provided id and probed data
 	 *
@@ -2360,7 +2401,8 @@ class Contact
 
 		$fields = ['uid', 'uri-id', 'avatar', 'header', 'name', 'nick', 'location', 'keywords', 'about', 'subscribe',
 			'manually-approve', 'unsearchable', 'url', 'addr', 'batch', 'notify', 'poll', 'request', 'confirm', 'poco',
-			'network', 'alias', 'baseurl', 'gsid', 'forum', 'prv', 'contact-type', 'pubkey', 'last-item', 'xmpp', 'matrix'];
+			'network', 'alias', 'baseurl', 'gsid', 'forum', 'prv', 'contact-type', 'pubkey', 'last-item', 'xmpp', 'matrix',
+			'created', 'last-update'];
 		$contact = DBA::selectFirst('contact', $fields, ['id' => $id]);
 		if (!DBA::isResult($contact)) {
 			return false;
@@ -2393,14 +2435,34 @@ class Contact
 		$pubkey = $contact['pubkey'];
 		unset($contact['pubkey']);
 
+		$created = $contact['created'];
+		unset($contact['created']);
+
+		$last_update = $contact['last-update'];
+		unset($contact['last-update']);
+
 		$contact['photo'] = $contact['avatar'];
 		unset($contact['avatar']);
 
 		$updated = DateTimeFormat::utcNow();
 
+		$has_local_data = self::hasLocalData($id, $contact);
+
+		if (!in_array($ret['network'], array_merge(Protocol::FEDERATED, [Protocol::ZOT, Protocol::PHANTOM]))) {
+			// Periodical checks are only done on federated contacts
+			$failed_next_update  = null;
+			$success_next_update = null;
+		} elseif ($has_local_data) {
+			$failed_next_update  = GServer::getNextUpdateDate(false, $created, $last_update, !in_array($contact['network'], Protocol::FEDERATED));
+			$success_next_update = GServer::getNextUpdateDate(true, $created, $last_update, !in_array($contact['network'], Protocol::FEDERATED));
+		} else {
+			$failed_next_update  = DateTimeFormat::utc('now +6 month');
+			$success_next_update = DateTimeFormat::utc('now +1 month');
+		}
+
 		if (Strings::normaliseLink($contact['url']) != Strings::normaliseLink($ret['url'])) {
 			Logger::notice('New URL differs from old URL', ['id' => $id, 'uid' => $uid, 'old' => $contact['url'], 'new' => $ret['url']]);
-			self::updateContact($id, $uid, $contact['url'], $ret['url'], ['failed' => true, 'last-update' => $updated, 'failure_update' => $updated]);
+			self::updateContact($id, $uid, $contact['url'], $ret['url'], ['failed' => true, 'local-data' => $has_local_data, 'last-update' => $updated, 'next-update' => $failed_next_update, 'failure_update' => $updated]);
 			return false;
 		}
 
@@ -2408,14 +2470,14 @@ class Contact
 		// We check after the probing to be able to correct falsely detected contact types.
 		if (($contact['contact-type'] == self::TYPE_RELAY) &&
 			(!Strings::compareLink($ret['url'], $contact['url']) || in_array($ret['network'], [Protocol::FEED, Protocol::PHANTOM]))) {
-			self::updateContact($id, $uid, $contact['url'], $contact['url'], ['failed' => false, 'last-update' => $updated, 'success_update' => $updated]);
+			self::updateContact($id, $uid, $contact['url'], $contact['url'], ['failed' => false, 'local-data' => $has_local_data, 'last-update' => $updated, 'next-update' => $success_next_update, 'success_update' => $updated]);
 			Logger::info('Not updating relais', ['id' => $id, 'url' => $contact['url']]);
 			return true;
 		}
 
 		// If Probe::uri fails the network code will be different ("feed" or "unkn")
 		if (($ret['network'] == Protocol::PHANTOM) || (($ret['network'] == Protocol::FEED) && ($ret['network'] != $contact['network']))) {
-			self::updateContact($id, $uid, $contact['url'], $ret['url'], ['failed' => true, 'last-update' => $updated, 'failure_update' => $updated]);
+			self::updateContact($id, $uid, $contact['url'], $ret['url'], ['failed' => true, 'local-data' => $has_local_data, 'last-update' => $updated, 'next-update' => $failed_next_update, 'failure_update' => $updated]);
 			return false;
 		}
 
@@ -2487,7 +2549,7 @@ class Contact
 		$uriid = ItemURI::insert(['uri' => $ret['url'], 'guid' => $guid]);
 
 		if (!$update) {
-			self::updateContact($id, $uid, $contact['url'], $ret['url'], ['failed' => false, 'last-update' => $updated, 'success_update' => $updated]);
+			self::updateContact($id, $uid, $contact['url'], $ret['url'], ['failed' => false, 'local-data' => $has_local_data, 'last-update' => $updated, 'next-update' => $success_next_update, 'success_update' => $updated]);
 
 			if (Contact\Relation::isDiscoverable($ret['url'])) {
 				Worker::add(PRIORITY_LOW, 'ContactDiscovery', $ret['url']);
@@ -2508,6 +2570,8 @@ class Contact
 		$ret['nurl']        = Strings::normaliseLink($ret['url']);
 		$ret['updated']     = $updated;
 		$ret['failed']      = false;
+		$ret['next-update'] = $success_next_update;
+		$ret['local-data']  = $has_local_data;
 
 		// Only fill the pubkey if it had been empty before. We have to prevent identity theft.
 		if (empty($pubkey) && !empty($new_pubkey)) {

src/Model/Item.php

@@ -1948,15 +1948,15 @@ class Item
 			} else {
 				$condition = ['id' => $arr['contact-id'], 'self' => false];
 			}
-			Contact::update(['failed' => false, 'success_update' => $arr['received'], 'last-item' => $arr['received']], $condition);
+			Contact::update(['failed' => false, 'local-data' => true, 'success_update' => $arr['received'], 'last-item' => $arr['received']], $condition);
 		}
 		// Now do the same for the system wide contacts with uid=0
 		if ($arr['private'] != self::PRIVATE) {
-			Contact::update(['failed' => false, 'success_update' => $arr['received'], 'last-item' => $arr['received']],
+			Contact::update(['failed' => false, 'local-data' => true, 'success_update' => $arr['received'], 'last-item' => $arr['received']],
 				['id' => $arr['owner-id']]);
 
 			if ($arr['owner-id'] != $arr['author-id']) {
-				Contact::update(['failed' => false, 'success_update' => $arr['received'], 'last-item' => $arr['received']],
+				Contact::update(['failed' => false, 'local-data' => true, 'success_update' => $arr['received'], 'last-item' => $arr['received']],
 					['id' => $arr['author-id']]);
 			}
 		}

src/Worker/UpdateContacts.php

@@ -35,8 +35,6 @@ class UpdateContacts
 {
 	public static function execute()
 	{
-		$base_condition = ['network' => array_merge(Protocol::FEDERATED, [Protocol::ZOT, Protocol::PHANTOM]), 'self' => false];
-
 		$update_limit = DI::config()->get('system', 'contact_update_limit');
 		if (empty($update_limit)) {
 			return;
@@ -49,66 +47,24 @@ class UpdateContacts
 			return;
 		}
 
-		$condition = DBA::mergeConditions($base_condition,
+		Logger::info('Updating contact', ['count' => $limit]);
-			["`uid` != ? AND (`last-update` < ? OR (NOT `failed` AND `last-update` < ?))",
-			0, DateTimeFormat::utc('now - 1 month'), DateTimeFormat::utc('now - 1 week')]);
-		$ids = self::getContactsToUpdate($condition, $limit, []);
-		Logger::info('Fetched federated user contacts', ['count' => count($ids)]);
 
-		$conditions = ["`id` IN (SELECT `author-id` FROM `post`)",
+		$condition = ['self' => false];
-			"`id` IN (SELECT `owner-id` FROM `post`)",
-			"`id` IN (SELECT `causer-id` FROM `post` WHERE NOT `causer-id` IS NULL)",
-			"`id` IN (SELECT `cid` FROM `post-tag`)",
-			"`id` IN (SELECT `cid` FROM `user-contact`)"];
 
-		foreach ($conditions as $contact_condition) {
+		if (DI::config()->get('system', 'update_active_contacts')) {
-			$condition = DBA::mergeConditions($base_condition,
+			$condition = array_merge(['local-data' => true], $condition);
-				[$contact_condition . " AND (`last-update` < ? OR (NOT `failed` AND `last-update` < ?))",
-				DateTimeFormat::utc('now - 1 month'), DateTimeFormat::utc('now - 1 week')]);
-			$ids = self::getContactsToUpdate($condition, $limit, $ids);
-			Logger::info('Fetched interacting federated contacts', ['count' => count($ids), 'condition' => $contact_condition]);
-		}
-
-		if (count($ids) > $limit) {
-			$ids = array_slice($ids, 0, $limit, true);
-		}
-
-		if (!DI::config()->get('system', 'update_active_contacts')) {
-			// Add every contact (mostly failed ones) that hadn't been updated for six months
-			// and every non failed contact that hadn't been updated for a month
-			$condition = DBA::mergeConditions($base_condition,
-				["(`last-update` < ? OR (NOT `failed` AND `last-update` < ?))",
-					DateTimeFormat::utc('now - 6 month'), DateTimeFormat::utc('now - 1 month')]);
-			$previous = count($ids);
-			$ids = self::getContactsToUpdate($condition, $limit - $previous, $ids);
-			Logger::info('Fetched federated contacts', ['count' => count($ids) - $previous]);
 		}
 
+		$condition = array_merge(["`next-update` < ?", DateTimeFormat::utcNow()], $condition);
+		$contacts = DBA::select('contact', ['id'], $condition, ['order' => ['next-update'], 'limit' => $limit]);
 		$count = 0;
-		foreach ($ids as $id) {
+		while ($contact = DBA::fetch($contacts)) {
-			if (Worker::add(PRIORITY_LOW, "UpdateContact", $id)) {
+			if (Worker::add(['priority' => PRIORITY_LOW, 'dont_fork' => true], "UpdateContact", $contact['id'])) {
 				++$count;
 			}
 		}
+		DBA::close($contacts);
 
 		Logger::info('Initiated update for federated contacts', ['count' => $count]);
 	}
-
-	/**
-	 * Returns contact ids based on a given condition
-	 *
-	 * @param array $condition
-	 * @param int $limit
-	 * @param array $ids
-	 * @return array contact ids
-	 */
-	private static function getContactsToUpdate(array $condition, int $limit, array $ids = []): array
-	{
-		$contacts = DBA::select('contact', ['id'], $condition, ['limit' => $limit]);
-		while ($contact = DBA::fetch($contacts)) {
-			$ids[$contact['id']] = $contact['id'];
-		}
-		DBA::close($contacts);
-		return $ids;
-	}
 }

static/dbstructure.config.php

@@ -55,7 +55,7 @@
 use Friendica\Database\DBA;
 
 if (!defined('DB_UPDATE_VERSION')) {
-	define('DB_UPDATE_VERSION', 1479);
+	define('DB_UPDATE_VERSION', 1480);
 }
 
 return [
@@ -198,12 +198,14 @@ return [
 			"poll" => ["type" => "varchar(255)", "comment" => ""],
 			"subscribe" => ["type" => "varchar(255)", "comment" => ""],
 			"last-update" => ["type" => "datetime", "not null" => "1", "default" => DBA::NULL_DATETIME, "comment" => "Date of the last try to update the contact info"],
+			"next-update" => ["type" => "datetime", "comment" => "Next connection request"],
 			"success_update" => ["type" => "datetime", "not null" => "1", "default" => DBA::NULL_DATETIME, "comment" => "Date of the last successful contact update"],
 			"failure_update" => ["type" => "datetime", "not null" => "1", "default" => DBA::NULL_DATETIME, "comment" => "Date of the last failed update"],
 			"failed" => ["type" => "boolean", "comment" => "Connection failed"],
 			"term-date" => ["type" => "datetime", "not null" => "1", "default" => DBA::NULL_DATETIME, "comment" => ""],
 			"last-item" => ["type" => "datetime", "not null" => "1", "default" => DBA::NULL_DATETIME, "comment" => "date of the last post"],
 			"last-discovery" => ["type" => "datetime", "not null" => "1", "default" => DBA::NULL_DATETIME, "comment" => "date of the last follower discovery"],
+			"local-data" => ["type" => "boolean", "comment" => "Is true when there are posts with this contact on the system"],
 			"blocked" => ["type" => "boolean", "not null" => "1", "default" => "1", "comment" => "Node-wide block status"],
 			"block_reason" => ["type" => "text", "comment" => "Node-wide block reason"],
 			"readonly" => ["type" => "boolean", "not null" => "1", "default" => "0", "comment" => "posts of the contact are readonly"],
@@ -275,6 +277,8 @@ return [
 			"attag_uid" => ["attag(96)", "uid"],
 			"network_uid_lastupdate" => ["network", "uid", "last-update"],
 			"uid_network_self_lastupdate" => ["uid", "network", "self", "last-update"],
+			"next-update" => ["next-update"],
+			"local-data-next-update" => ["local-data", "next-update"],
 			"uid_lastitem" => ["uid", "last-item"],
 			"baseurl" => ["baseurl(64)"],
 			"uid_contact-type" => ["uid", "contact-type"],

update.php

@@ -42,6 +42,7 @@
 
 use Friendica\Core\Config\ValueObject\Cache;
 use Friendica\Core\Logger;
+use Friendica\Core\Protocol;
 use Friendica\Core\Storage\Capability\ICanReadFromStorage;
 use Friendica\Core\Storage\Type\Database as DatabaseStorage;
 use Friendica\Core\Update;
@@ -1107,3 +1108,8 @@ function update_1457()
 
 	return Update::SUCCESS;
 }
+
+function update_1480()
+{
+	DBA::update('contact', ['next-update' => DBA::NULL_DATETIME], ['network' => Protocol::FEDERATED]);
+}