PHP MongoDB \ .. \ ServerException无法与数据库“ Model”一起发送“ getMore”命令：套接字错误或超时

Question

有人可以帮助我修复此PHP MongoDB异常：

  

无法通过数据库“ Model”发送“ getMore”命令：套接字错误或超时

从查询到大量收藏（14密耳）。查询如下：

$options = [
            'noCursorTimeout' => true,
            'batchSize' => 50,
            'projection' => ['dateFrom' => 1, 'dateTo' => 1, 'ico' => 1, 'city' => 1, 'address' => 1, 'name' => 1, 'type' => 1]
        ];

$docs = $this->mapper->getCollection()->find([
            '$or' => [
                ['dateFrom' => ['$lte' => $bsonTo], 'dateTo' => NULL],
                ['dateFrom' => ['$lt' => $bsonFrom], 'dateTo' => ['$gte' => $bsonFrom]],
                ['dateFrom' => ['$gte' => $bsonFrom, '$lte' => $bsonTo]]
            ]
        ], $options); 

我设置了noCursorTimemout + batchSize原因，起初我遇到Cursor not found异常。但是现在我有了这个。谢谢。