Merge "Revert "Avoid doNotifyQueueEmpty() race conditions for Redis""
[lhc/web/wiklou.git] / includes / jobqueue / aggregator / JobQueueAggregatorRedis.php
index 6c49646..9b4e7e9 100644 (file)
 class JobQueueAggregatorRedis extends JobQueueAggregator {
        /** @var RedisConnectionPool */
        protected $redisPool;
-
        /** @var array List of Redis server addresses */
        protected $servers;
+       /** @var bool */
+       protected $registeredQueue = false;
 
        /**
         * @param array $params Possible keys:
@@ -76,11 +77,16 @@ class JobQueueAggregatorRedis extends JobQueueAggregator {
                }
                try {
                        $conn->multi( Redis::PIPELINE );
-                       $conn->hSetNx( $this->getQueueTypesKey(), $type, 'enabled' );
-                       $conn->sAdd( $this->getWikiSetKey(), $wiki );
+                       if ( !$this->registeredQueue ) {
+                               // Make sure the queue is registered as existing
+                               $conn->hSetNx( $this->getQueueTypesKey(), $type, 'enabled' );
+                               $conn->sAdd( $this->getWikiSetKey(), $wiki );
+                       }
                        $conn->hSet( $this->getReadyQueueKey(), $this->encQueueName( $type, $wiki ), time() );
                        $conn->exec();
 
+                       $this->registeredQueue = true;
+
                        return true;
                } catch ( RedisException $e ) {
                        $this->handleException( $conn, $e );