# includes/job
'Job' => 'includes/job/Job.php',
'JobQueue' => 'includes/job/JobQueue.php',
- 'JobQueueAggregator' => 'includes/job/JobQueueAggregator.php',
- 'JobQueueAggregatorMemc' => 'includes/job/JobQueueAggregatorMemc.php',
- 'JobQueueAggregatorRedis' => 'includes/job/JobQueueAggregatorRedis.php',
+ 'JobQueueAggregator' => 'includes/job/aggregator/JobQueueAggregator.php',
+ 'JobQueueAggregatorMemc' => 'includes/job/aggregator/JobQueueAggregatorMemc.php',
+ 'JobQueueAggregatorRedis' => 'includes/job/aggregator/JobQueueAggregatorRedis.php',
'JobQueueDB' => 'includes/job/JobQueueDB.php',
'JobQueueGroup' => 'includes/job/JobQueueGroup.php',
'JobQueueFederated' => 'includes/job/JobQueueFederated.php',
+++ /dev/null
-<?php
-/**
- * Job queue aggregator code.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
- * http://www.gnu.org/copyleft/gpl.html
- *
- * @file
- * @author Aaron Schulz
- */
-
-/**
- * Class to handle tracking information about all queues
- *
- * @ingroup JobQueue
- * @since 1.21
- */
-abstract class JobQueueAggregator {
- /** @var JobQueueAggregator */
- protected static $instance = null;
-
- /**
- * @param array $params
- */
- protected function __construct( array $params ) {}
-
- /**
- * @return JobQueueAggregator
- */
- final public static function singleton() {
- global $wgJobQueueAggregator;
-
- if ( !isset( self::$instance ) ) {
- $class = $wgJobQueueAggregator['class'];
- $obj = new $class( $wgJobQueueAggregator );
- if ( !( $obj instanceof JobQueueAggregator ) ) {
- throw new MWException( "Class '$class' is not a JobQueueAggregator class." );
- }
- self::$instance = $obj;
- }
-
- return self::$instance;
- }
-
- /**
- * Destroy the singleton instance
- *
- * @return void
- */
- final public static function destroySingleton() {
- self::$instance = null;
- }
-
- /**
- * Mark a queue as being empty
- *
- * @param string $wiki
- * @param string $type
- * @return bool Success
- */
- final public function notifyQueueEmpty( $wiki, $type ) {
- wfProfileIn( __METHOD__ );
- $ok = $this->doNotifyQueueEmpty( $wiki, $type );
- wfProfileOut( __METHOD__ );
- return $ok;
- }
-
- /**
- * @see JobQueueAggregator::notifyQueueEmpty()
- */
- abstract protected function doNotifyQueueEmpty( $wiki, $type );
-
- /**
- * Mark a queue as being non-empty
- *
- * @param string $wiki
- * @param string $type
- * @return bool Success
- */
- final public function notifyQueueNonEmpty( $wiki, $type ) {
- wfProfileIn( __METHOD__ );
- $ok = $this->doNotifyQueueNonEmpty( $wiki, $type );
- wfProfileOut( __METHOD__ );
- return $ok;
- }
-
- /**
- * @see JobQueueAggregator::notifyQueueNonEmpty()
- */
- abstract protected function doNotifyQueueNonEmpty( $wiki, $type );
-
- /**
- * Get the list of all of the queues with jobs
- *
- * @return Array (job type => (list of wiki IDs))
- */
- final public function getAllReadyWikiQueues() {
- wfProfileIn( __METHOD__ );
- $res = $this->doGetAllReadyWikiQueues();
- wfProfileOut( __METHOD__ );
- return $res;
- }
-
- /**
- * @see JobQueueAggregator::getAllReadyWikiQueues()
- */
- abstract protected function doGetAllReadyWikiQueues();
-
- /**
- * Purge all of the aggregator information
- *
- * @return bool Success
- */
- final public function purge() {
- wfProfileIn( __METHOD__ );
- $res = $this->doPurge();
- wfProfileOut( __METHOD__ );
- return $res;
- }
-
- /**
- * @see JobQueueAggregator::purge()
- */
- abstract protected function doPurge();
-
- /**
- * Get all databases that have a pending job.
- * This poll all the queues and is this expensive.
- *
- * @return Array (job type => (list of wiki IDs))
- */
- protected function findPendingWikiQueues() {
- global $wgLocalDatabases;
-
- $pendingDBs = array(); // (job type => (db list))
- foreach ( $wgLocalDatabases as $db ) {
- foreach ( JobQueueGroup::singleton( $db )->getQueuesWithJobs() as $type ) {
- $pendingDBs[$type][] = $db;
- }
- }
-
- return $pendingDBs;
- }
-}
+++ /dev/null
-<?php
-/**
- * Job queue aggregator code that uses BagOStuff.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
- * http://www.gnu.org/copyleft/gpl.html
- *
- * @file
- * @author Aaron Schulz
- */
-
-/**
- * Class to handle tracking information about all queues using BagOStuff
- *
- * @ingroup JobQueue
- * @since 1.21
- */
-class JobQueueAggregatorMemc extends JobQueueAggregator {
- /** @var BagOStuff */
- protected $cache;
-
- protected $cacheTTL; // integer; seconds
-
- /**
- * @params include:
- * - objectCache : Name of an object cache registered in $wgObjectCaches.
- * This defaults to the one specified by $wgMainCacheType.
- * - cacheTTL : Seconds to cache the aggregate data before regenerating.
- * @param array $params
- */
- protected function __construct( array $params ) {
- parent::__construct( $params );
- $this->cache = isset( $params['objectCache'] )
- ? wfGetCache( $params['objectCache'] )
- : wfGetMainCache();
- $this->cacheTTL = isset( $params['cacheTTL'] ) ? $params['cacheTTL'] : 180; // 3 min
- }
-
- /**
- * @see JobQueueAggregator::doNotifyQueueEmpty()
- */
- protected function doNotifyQueueEmpty( $wiki, $type ) {
- $key = $this->getReadyQueueCacheKey();
- // Delist the queue from the "ready queue" list
- if ( $this->cache->add( "$key:lock", 1, 60 ) ) { // lock
- $curInfo = $this->cache->get( $key );
- if ( is_array( $curInfo ) && isset( $curInfo['pendingDBs'][$type] ) ) {
- if ( in_array( $wiki, $curInfo['pendingDBs'][$type] ) ) {
- $curInfo['pendingDBs'][$type] = array_diff(
- $curInfo['pendingDBs'][$type], array( $wiki ) );
- $this->cache->set( $key, $curInfo );
- }
- }
- $this->cache->delete( "$key:lock" ); // unlock
- }
- return true;
- }
-
- /**
- * @see JobQueueAggregator::doNotifyQueueNonEmpty()
- */
- protected function doNotifyQueueNonEmpty( $wiki, $type ) {
- return true; // updated periodically
- }
-
- /**
- * @see JobQueueAggregator::doAllGetReadyWikiQueues()
- */
- protected function doGetAllReadyWikiQueues() {
- $key = $this->getReadyQueueCacheKey();
- // If the cache entry wasn't present, is stale, or in .1% of cases otherwise,
- // regenerate the cache. Use any available stale cache if another process is
- // currently regenerating the pending DB information.
- $pendingDbInfo = $this->cache->get( $key );
- if ( !is_array( $pendingDbInfo )
- || ( time() - $pendingDbInfo['timestamp'] ) > $this->cacheTTL
- || mt_rand( 0, 999 ) == 0
- ) {
- if ( $this->cache->add( "$key:rebuild", 1, 1800 ) ) { // lock
- $pendingDbInfo = array(
- 'pendingDBs' => $this->findPendingWikiQueues(),
- 'timestamp' => time()
- );
- for ( $attempts = 1; $attempts <= 25; ++$attempts ) {
- if ( $this->cache->add( "$key:lock", 1, 60 ) ) { // lock
- $this->cache->set( $key, $pendingDbInfo );
- $this->cache->delete( "$key:lock" ); // unlock
- break;
- }
- }
- $this->cache->delete( "$key:rebuild" ); // unlock
- }
- }
- return is_array( $pendingDbInfo )
- ? $pendingDbInfo['pendingDBs']
- : array(); // cache is both empty and locked
- }
-
- /**
- * @see JobQueueAggregator::doPurge()
- */
- protected function doPurge() {
- return $this->cache->delete( $this->getReadyQueueCacheKey() );
- }
-
- /**
- * @return string
- */
- private function getReadyQueueCacheKey() {
- return "jobqueue:aggregator:ready-queues:v1"; // global
- }
-}
+++ /dev/null
-<?php
-/**
- * Job queue aggregator code that uses PhpRedis.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
- * http://www.gnu.org/copyleft/gpl.html
- *
- * @file
- * @author Aaron Schulz
- */
-
-/**
- * Class to handle tracking information about all queues using PhpRedis
- *
- * @ingroup JobQueue
- * @ingroup Redis
- * @since 1.21
- */
-class JobQueueAggregatorRedis extends JobQueueAggregator {
- /** @var RedisConnectionPool */
- protected $redisPool;
-
- /**
- * @params include:
- * - redisConfig : An array of parameters to RedisConnectionPool::__construct().
- * - redisServer : A hostname/port combination or the absolute path of a UNIX socket.
- * If a hostname is specified but no port, the standard port number
- * 6379 will be used. Required.
- * @param array $params
- */
- protected function __construct( array $params ) {
- parent::__construct( $params );
- $this->server = $params['redisServer'];
- $this->redisPool = RedisConnectionPool::singleton( $params['redisConfig'] );
- }
-
- /**
- * @see JobQueueAggregator::doNotifyQueueEmpty()
- */
- protected function doNotifyQueueEmpty( $wiki, $type ) {
- $conn = $this->getConnection();
- if ( !$conn ) {
- return false;
- }
- try {
- $conn->hDel( $this->getReadyQueueKey(), $this->encQueueName( $type, $wiki ) );
- return true;
- } catch ( RedisException $e ) {
- $this->handleException( $conn, $e );
- return false;
- }
- }
-
- /**
- * @see JobQueueAggregator::doNotifyQueueNonEmpty()
- */
- protected function doNotifyQueueNonEmpty( $wiki, $type ) {
- $conn = $this->getConnection();
- if ( !$conn ) {
- return false;
- }
- try {
- $conn->hSet( $this->getReadyQueueKey(), $this->encQueueName( $type, $wiki ), time() );
- return true;
- } catch ( RedisException $e ) {
- $this->handleException( $conn, $e );
- return false;
- }
- }
-
- /**
- * @see JobQueueAggregator::doAllGetReadyWikiQueues()
- */
- protected function doGetAllReadyWikiQueues() {
- $conn = $this->getConnection();
- if ( !$conn ) {
- return array();
- }
- try {
- $conn->multi( Redis::PIPELINE );
- $conn->exists( $this->getReadyQueueKey() );
- $conn->hGetAll( $this->getReadyQueueKey() );
- list( $exists, $map ) = $conn->exec();
-
- if ( $exists ) { // cache hit
- $pendingDBs = array(); // (type => list of wikis)
- foreach ( $map as $key => $time ) {
- list( $type, $wiki ) = $this->dencQueueName( $key );
- $pendingDBs[$type][] = $wiki;
- }
- } else { // cache miss
- // Avoid duplicated effort
- $conn->multi( Redis::MULTI );
- $conn->setnx( $this->getReadyQueueKey() . ":lock", 1 );
- $conn->expire( $this->getReadyQueueKey() . ":lock", 3600 );
- if ( $conn->exec() !== array( true, true ) ) { // lock
- return array(); // already in progress
- }
-
- $pendingDBs = $this->findPendingWikiQueues(); // (type => list of wikis)
-
- $conn->delete( $this->getReadyQueueKey() . ":lock" ); // unlock
-
- $now = time();
- $map = array();
- foreach ( $pendingDBs as $type => $wikis ) {
- foreach ( $wikis as $wiki ) {
- $map[$this->encQueueName( $type, $wiki )] = $now;
- }
- }
- $conn->hMSet( $this->getReadyQueueKey(), $map );
- }
-
- return $pendingDBs;
- } catch ( RedisException $e ) {
- $this->handleException( $conn, $e );
- return array();
- }
- }
-
- /**
- * @see JobQueueAggregator::doPurge()
- */
- protected function doPurge() {
- $conn = $this->getConnection();
- if ( !$conn ) {
- return false;
- }
- try {
- $conn->delete( $this->getReadyQueueKey() );
- } catch ( RedisException $e ) {
- $this->handleException( $conn, $e );
- return false;
- }
- return true;
- }
-
- /**
- * Get a connection to the server that handles all sub-queues for this queue
- *
- * @return Array (server name, Redis instance)
- * @throws MWException
- */
- protected function getConnection() {
- return $this->redisPool->getConnection( $this->server );
- }
-
- /**
- * @param RedisConnRef $conn
- * @param RedisException $e
- * @return void
- */
- protected function handleException( RedisConnRef $conn, $e ) {
- $this->redisPool->handleException( $this->server, $conn, $e );
- }
-
- /**
- * @return string
- */
- private function getReadyQueueKey() {
- return "jobqueue:aggregator:h-ready-queues:v1"; // global
- }
-
- /**
- * @param string $type
- * @param string $wiki
- * @return string
- */
- private function encQueueName( $type, $wiki ) {
- return rawurlencode( $type ) . '/' . rawurlencode( $wiki );
- }
-
- /**
- * @param string $name
- * @return string
- */
- private function dencQueueName( $name ) {
- list( $type, $wiki ) = explode( '/', $name, 2 );
- return array( rawurldecode( $type ), rawurldecode( $wiki ) );
- }
-}
--- /dev/null
+<?php
+/**
+ * Job queue aggregator code.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ * http://www.gnu.org/copyleft/gpl.html
+ *
+ * @file
+ * @author Aaron Schulz
+ */
+
+/**
+ * Class to handle tracking information about all queues
+ *
+ * @ingroup JobQueue
+ * @since 1.21
+ */
+abstract class JobQueueAggregator {
+ /** @var JobQueueAggregator */
+ protected static $instance = null;
+
+ /**
+ * @param array $params
+ */
+ protected function __construct( array $params ) {}
+
+ /**
+ * @return JobQueueAggregator
+ */
+ final public static function singleton() {
+ global $wgJobQueueAggregator;
+
+ if ( !isset( self::$instance ) ) {
+ $class = $wgJobQueueAggregator['class'];
+ $obj = new $class( $wgJobQueueAggregator );
+ if ( !( $obj instanceof JobQueueAggregator ) ) {
+ throw new MWException( "Class '$class' is not a JobQueueAggregator class." );
+ }
+ self::$instance = $obj;
+ }
+
+ return self::$instance;
+ }
+
+ /**
+ * Destroy the singleton instance
+ *
+ * @return void
+ */
+ final public static function destroySingleton() {
+ self::$instance = null;
+ }
+
+ /**
+ * Mark a queue as being empty
+ *
+ * @param string $wiki
+ * @param string $type
+ * @return bool Success
+ */
+ final public function notifyQueueEmpty( $wiki, $type ) {
+ wfProfileIn( __METHOD__ );
+ $ok = $this->doNotifyQueueEmpty( $wiki, $type );
+ wfProfileOut( __METHOD__ );
+ return $ok;
+ }
+
+ /**
+ * @see JobQueueAggregator::notifyQueueEmpty()
+ */
+ abstract protected function doNotifyQueueEmpty( $wiki, $type );
+
+ /**
+ * Mark a queue as being non-empty
+ *
+ * @param string $wiki
+ * @param string $type
+ * @return bool Success
+ */
+ final public function notifyQueueNonEmpty( $wiki, $type ) {
+ wfProfileIn( __METHOD__ );
+ $ok = $this->doNotifyQueueNonEmpty( $wiki, $type );
+ wfProfileOut( __METHOD__ );
+ return $ok;
+ }
+
+ /**
+ * @see JobQueueAggregator::notifyQueueNonEmpty()
+ */
+ abstract protected function doNotifyQueueNonEmpty( $wiki, $type );
+
+ /**
+ * Get the list of all of the queues with jobs
+ *
+ * @return Array (job type => (list of wiki IDs))
+ */
+ final public function getAllReadyWikiQueues() {
+ wfProfileIn( __METHOD__ );
+ $res = $this->doGetAllReadyWikiQueues();
+ wfProfileOut( __METHOD__ );
+ return $res;
+ }
+
+ /**
+ * @see JobQueueAggregator::getAllReadyWikiQueues()
+ */
+ abstract protected function doGetAllReadyWikiQueues();
+
+ /**
+ * Purge all of the aggregator information
+ *
+ * @return bool Success
+ */
+ final public function purge() {
+ wfProfileIn( __METHOD__ );
+ $res = $this->doPurge();
+ wfProfileOut( __METHOD__ );
+ return $res;
+ }
+
+ /**
+ * @see JobQueueAggregator::purge()
+ */
+ abstract protected function doPurge();
+
+ /**
+ * Get all databases that have a pending job.
+ * This poll all the queues and is this expensive.
+ *
+ * @return Array (job type => (list of wiki IDs))
+ */
+ protected function findPendingWikiQueues() {
+ global $wgLocalDatabases;
+
+ $pendingDBs = array(); // (job type => (db list))
+ foreach ( $wgLocalDatabases as $db ) {
+ foreach ( JobQueueGroup::singleton( $db )->getQueuesWithJobs() as $type ) {
+ $pendingDBs[$type][] = $db;
+ }
+ }
+
+ return $pendingDBs;
+ }
+}
--- /dev/null
+<?php
+/**
+ * Job queue aggregator code that uses BagOStuff.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ * http://www.gnu.org/copyleft/gpl.html
+ *
+ * @file
+ * @author Aaron Schulz
+ */
+
+/**
+ * Class to handle tracking information about all queues using BagOStuff
+ *
+ * @ingroup JobQueue
+ * @since 1.21
+ */
+class JobQueueAggregatorMemc extends JobQueueAggregator {
+ /** @var BagOStuff */
+ protected $cache;
+
+ protected $cacheTTL; // integer; seconds
+
+ /**
+ * @params include:
+ * - objectCache : Name of an object cache registered in $wgObjectCaches.
+ * This defaults to the one specified by $wgMainCacheType.
+ * - cacheTTL : Seconds to cache the aggregate data before regenerating.
+ * @param array $params
+ */
+ protected function __construct( array $params ) {
+ parent::__construct( $params );
+ $this->cache = isset( $params['objectCache'] )
+ ? wfGetCache( $params['objectCache'] )
+ : wfGetMainCache();
+ $this->cacheTTL = isset( $params['cacheTTL'] ) ? $params['cacheTTL'] : 180; // 3 min
+ }
+
+ /**
+ * @see JobQueueAggregator::doNotifyQueueEmpty()
+ */
+ protected function doNotifyQueueEmpty( $wiki, $type ) {
+ $key = $this->getReadyQueueCacheKey();
+ // Delist the queue from the "ready queue" list
+ if ( $this->cache->add( "$key:lock", 1, 60 ) ) { // lock
+ $curInfo = $this->cache->get( $key );
+ if ( is_array( $curInfo ) && isset( $curInfo['pendingDBs'][$type] ) ) {
+ if ( in_array( $wiki, $curInfo['pendingDBs'][$type] ) ) {
+ $curInfo['pendingDBs'][$type] = array_diff(
+ $curInfo['pendingDBs'][$type], array( $wiki ) );
+ $this->cache->set( $key, $curInfo );
+ }
+ }
+ $this->cache->delete( "$key:lock" ); // unlock
+ }
+ return true;
+ }
+
+ /**
+ * @see JobQueueAggregator::doNotifyQueueNonEmpty()
+ */
+ protected function doNotifyQueueNonEmpty( $wiki, $type ) {
+ return true; // updated periodically
+ }
+
+ /**
+ * @see JobQueueAggregator::doAllGetReadyWikiQueues()
+ */
+ protected function doGetAllReadyWikiQueues() {
+ $key = $this->getReadyQueueCacheKey();
+ // If the cache entry wasn't present, is stale, or in .1% of cases otherwise,
+ // regenerate the cache. Use any available stale cache if another process is
+ // currently regenerating the pending DB information.
+ $pendingDbInfo = $this->cache->get( $key );
+ if ( !is_array( $pendingDbInfo )
+ || ( time() - $pendingDbInfo['timestamp'] ) > $this->cacheTTL
+ || mt_rand( 0, 999 ) == 0
+ ) {
+ if ( $this->cache->add( "$key:rebuild", 1, 1800 ) ) { // lock
+ $pendingDbInfo = array(
+ 'pendingDBs' => $this->findPendingWikiQueues(),
+ 'timestamp' => time()
+ );
+ for ( $attempts = 1; $attempts <= 25; ++$attempts ) {
+ if ( $this->cache->add( "$key:lock", 1, 60 ) ) { // lock
+ $this->cache->set( $key, $pendingDbInfo );
+ $this->cache->delete( "$key:lock" ); // unlock
+ break;
+ }
+ }
+ $this->cache->delete( "$key:rebuild" ); // unlock
+ }
+ }
+ return is_array( $pendingDbInfo )
+ ? $pendingDbInfo['pendingDBs']
+ : array(); // cache is both empty and locked
+ }
+
+ /**
+ * @see JobQueueAggregator::doPurge()
+ */
+ protected function doPurge() {
+ return $this->cache->delete( $this->getReadyQueueCacheKey() );
+ }
+
+ /**
+ * @return string
+ */
+ private function getReadyQueueCacheKey() {
+ return "jobqueue:aggregator:ready-queues:v1"; // global
+ }
+}
--- /dev/null
+<?php
+/**
+ * Job queue aggregator code that uses PhpRedis.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ * http://www.gnu.org/copyleft/gpl.html
+ *
+ * @file
+ * @author Aaron Schulz
+ */
+
+/**
+ * Class to handle tracking information about all queues using PhpRedis
+ *
+ * @ingroup JobQueue
+ * @ingroup Redis
+ * @since 1.21
+ */
+class JobQueueAggregatorRedis extends JobQueueAggregator {
+ /** @var RedisConnectionPool */
+ protected $redisPool;
+
+ /**
+ * @params include:
+ * - redisConfig : An array of parameters to RedisConnectionPool::__construct().
+ * - redisServer : A hostname/port combination or the absolute path of a UNIX socket.
+ * If a hostname is specified but no port, the standard port number
+ * 6379 will be used. Required.
+ * @param array $params
+ */
+ protected function __construct( array $params ) {
+ parent::__construct( $params );
+ $this->server = $params['redisServer'];
+ $this->redisPool = RedisConnectionPool::singleton( $params['redisConfig'] );
+ }
+
+ /**
+ * @see JobQueueAggregator::doNotifyQueueEmpty()
+ */
+ protected function doNotifyQueueEmpty( $wiki, $type ) {
+ $conn = $this->getConnection();
+ if ( !$conn ) {
+ return false;
+ }
+ try {
+ $conn->hDel( $this->getReadyQueueKey(), $this->encQueueName( $type, $wiki ) );
+ return true;
+ } catch ( RedisException $e ) {
+ $this->handleException( $conn, $e );
+ return false;
+ }
+ }
+
+ /**
+ * @see JobQueueAggregator::doNotifyQueueNonEmpty()
+ */
+ protected function doNotifyQueueNonEmpty( $wiki, $type ) {
+ $conn = $this->getConnection();
+ if ( !$conn ) {
+ return false;
+ }
+ try {
+ $conn->hSet( $this->getReadyQueueKey(), $this->encQueueName( $type, $wiki ), time() );
+ return true;
+ } catch ( RedisException $e ) {
+ $this->handleException( $conn, $e );
+ return false;
+ }
+ }
+
+ /**
+ * @see JobQueueAggregator::doAllGetReadyWikiQueues()
+ */
+ protected function doGetAllReadyWikiQueues() {
+ $conn = $this->getConnection();
+ if ( !$conn ) {
+ return array();
+ }
+ try {
+ $conn->multi( Redis::PIPELINE );
+ $conn->exists( $this->getReadyQueueKey() );
+ $conn->hGetAll( $this->getReadyQueueKey() );
+ list( $exists, $map ) = $conn->exec();
+
+ if ( $exists ) { // cache hit
+ $pendingDBs = array(); // (type => list of wikis)
+ foreach ( $map as $key => $time ) {
+ list( $type, $wiki ) = $this->dencQueueName( $key );
+ $pendingDBs[$type][] = $wiki;
+ }
+ } else { // cache miss
+ // Avoid duplicated effort
+ $conn->multi( Redis::MULTI );
+ $conn->setnx( $this->getReadyQueueKey() . ":lock", 1 );
+ $conn->expire( $this->getReadyQueueKey() . ":lock", 3600 );
+ if ( $conn->exec() !== array( true, true ) ) { // lock
+ return array(); // already in progress
+ }
+
+ $pendingDBs = $this->findPendingWikiQueues(); // (type => list of wikis)
+
+ $conn->delete( $this->getReadyQueueKey() . ":lock" ); // unlock
+
+ $now = time();
+ $map = array();
+ foreach ( $pendingDBs as $type => $wikis ) {
+ foreach ( $wikis as $wiki ) {
+ $map[$this->encQueueName( $type, $wiki )] = $now;
+ }
+ }
+ $conn->hMSet( $this->getReadyQueueKey(), $map );
+ }
+
+ return $pendingDBs;
+ } catch ( RedisException $e ) {
+ $this->handleException( $conn, $e );
+ return array();
+ }
+ }
+
+ /**
+ * @see JobQueueAggregator::doPurge()
+ */
+ protected function doPurge() {
+ $conn = $this->getConnection();
+ if ( !$conn ) {
+ return false;
+ }
+ try {
+ $conn->delete( $this->getReadyQueueKey() );
+ } catch ( RedisException $e ) {
+ $this->handleException( $conn, $e );
+ return false;
+ }
+ return true;
+ }
+
+ /**
+ * Get a connection to the server that handles all sub-queues for this queue
+ *
+ * @return Array (server name, Redis instance)
+ * @throws MWException
+ */
+ protected function getConnection() {
+ return $this->redisPool->getConnection( $this->server );
+ }
+
+ /**
+ * @param RedisConnRef $conn
+ * @param RedisException $e
+ * @return void
+ */
+ protected function handleException( RedisConnRef $conn, $e ) {
+ $this->redisPool->handleException( $this->server, $conn, $e );
+ }
+
+ /**
+ * @return string
+ */
+ private function getReadyQueueKey() {
+ return "jobqueue:aggregator:h-ready-queues:v1"; // global
+ }
+
+ /**
+ * @param string $type
+ * @param string $wiki
+ * @return string
+ */
+ private function encQueueName( $type, $wiki ) {
+ return rawurlencode( $type ) . '/' . rawurlencode( $wiki );
+ }
+
+ /**
+ * @param string $name
+ * @return string
+ */
+ private function dencQueueName( $name ) {
+ list( $type, $wiki ) = explode( '/', $name, 2 );
+ return array( rawurldecode( $type ), rawurldecode( $wiki ) );
+ }
+}
dépôts / lhc / web / wiklou.git / commitdiff