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<?php
/**
* Copyright © Magento, Inc. All rights reserved.
* See COPYING.txt for license details.
*/
namespace Magento\Framework\Indexer;
/**
* Class set MEMORY table size for indexer processes according batch size and index row size.
*/
class BatchSizeManagement implements \Magento\Framework\Indexer\BatchSizeManagementInterface
{
/**
* @var \Magento\Framework\Indexer\IndexTableRowSizeEstimatorInterface
*/
private $rowSizeEstimator;
/**
* @var \Psr\Log\LoggerInterface
*/
private $logger;
/**
* CompositeProductBatchSizeCalculator constructor.
* @param \Magento\Framework\Indexer\IndexTableRowSizeEstimatorInterface $rowSizeEstimator
* @param \Psr\Log\LoggerInterface $logger
*/
public function __construct(
\Magento\Framework\Indexer\IndexTableRowSizeEstimatorInterface $rowSizeEstimator,
\Psr\Log\LoggerInterface $logger
) {
$this->rowSizeEstimator = $rowSizeEstimator;
$this->logger = $logger;
}
/**
* @inheritdoc
*/
public function ensureBatchSize(\Magento\Framework\DB\Adapter\AdapterInterface $connection, $batchSize)
{
$rowMemory = $this->rowSizeEstimator->estimateRowSize();
$maxHeapTableSize = $connection->fetchOne('SELECT @@max_heap_table_size;');
$tmpTableSize = $connection->fetchOne('SELECT @@tmp_table_size;');
$bufferPoolSize = $connection->fetchOne('SELECT @@innodb_buffer_pool_size;');
$maxMemoryTableSize = min($maxHeapTableSize, $tmpTableSize);
$size = (int) ($rowMemory * $batchSize);
// Log warning if allocated memory for temp table greater than 20% of innodb_buffer_pool_size
if ($size > $bufferPoolSize * .2) {
$message = 'Memory size allocated for the temporary table is more than 20% of innodb_buffer_pool_size. ' .
'Please update innodb_buffer_pool_size or decrease batch size value '.
'(which decreases memory usages for the temporary table). ' .
'Current batch size: %1; Allocated memory size: %2 bytes; InnoDB buffer pool size: %3 bytes.';
$this->logger->warning(new \Magento\Framework\Phrase($message, [$batchSize, $size, $bufferPoolSize]));
}
if ($maxMemoryTableSize < $size) {
$connection->query('SET SESSION tmp_table_size = ' . $size . ';');
$connection->query('SET SESSION max_heap_table_size = ' . $size . ';');
}
}
}