Memory accumulation with PHP SoapClient using call() method

Question

When I use the call() method of the SoapClient class in loop it seems to be building up memory.

I have tried to search for solutions on the internet and some of the answers are to disable WSDL Cache, but it did not work for me. I have tried disabling cache with ini_set("soap.wsdl_cache_enabled", 0) and as a parameter of the SoapClient class instance. I have tried ini_set("soap.wsdl_cache_ttl", 0). I also have tried unset($this->_client) and unset($this->_session). Nothing worked for me.

ini_set("soap.wsdl_cache_enabled", WSDL_CACHE_NONE);


private function _call($method, $params = null)
{
    if (is_null($this->_client)) {
        $soapParams = array(
            'cache_wsdl' => WSDL_CACHE_NONE
        );
        $this->_client = new SoapClient($this->_getConfig('api/url'), $soapParams);
        $this->_session = $this->_client->login($this->_getConfig('api/user'), $this->_getConfig('api/key'));
    }

    $memoryBefore = memory_get_usage();
    echo "\n" . 'Memory Usage Before: ' . number_format($memoryBefore, null, '', '.');

    $result = $this->_client->call($this->_session, $method, $params);
    $memoryAfter = memory_get_usage();

    echo "\n" . 'Memory Usage After: ' . number_format($memoryAfter, null, '', '.');
    echo "\n" . 'Memory Usage Difference: ' . number_format($memoryAfter - $memoryBefore, null, '', '.') . "\n";

    return $result;
}

Is there any way to solve that? Am I doing something wrong?

I'm running the following method via the command line (using PHP 5.3.29)

$ php -f datasync.php

Memory Usage Before: 13.244.400
Memory Usage After: 20.239.488
Memory Usage Difference: 6.995.088
Importing Orders...
1% [100/6055] - Page number (pagenum): 1 Page size (pagesize): 100 Total pages: 61
Memory Usage Before: 22.402.792
Memory Usage After: 29.519.432
Memory Usage Difference: 7.116.640
3% [200/6055] - Page number (pagenum): 2 Page size (pagesize): 100 Total pages: 61
Memory Usage Before: 29.519.984
Memory Usage After: 36.515.112
Memory Usage Difference: 6.995.128
4% [300/6055] - Page number (pagenum): 3 Page size (pagesize): 100 Total pages: 61
Memory Usage Before: 36.515.680
Memory Usage After: 43.723.440
Memory Usage Difference: 7.207.760
6% [400/6055] - Page number (pagenum): 4 Page size (pagesize): 100 Total pages: 61
Memory Usage Before: 43.724.056
Memory Usage After: 50.879.592
Memory Usage Difference: 7.155.536
8% [500/6055] - Page number (pagenum): 5 Page size (pagesize): 100 Total pages: 61
Memory Usage Before: 50.880.096
Memory Usage After: 58.083.616
Memory Usage Difference: 7.203.520
9% [600/6055] - Page number (pagenum): 6 Page size (pagesize): 100 Total pages: 61
Memory Usage Before: 58.084.232
Memory Usage After: 65.167.136
Memory Usage Difference: 7.082.904
11% [700/6055] - Page number (pagenum): 7 Page size (pagesize): 100 Total pages: 61

What are you doing with the result returned from this method? — Mark Baker, May 30 '16 at 22:27

score 1 · Accepted Answer · edited May 23 '17 at 11:44

The problem was something else. I'm sorry. I tried to isolate everything to find out where the code was consuming memory but I forgot a function executing recursively.

The solution was to replace recursively methods with do-while.

See: PHP: Memory leak in recursive function

I was using this:

    foreach ($result['items'] as $data) {
        $datasyncOrder->saveOrder($data, $this->_useOriginalIds);
        $this->_clv->printProgress($pageNumber, $result['pagesize'], $result['pages'], $result['page'], $result['total'], $index);
        $index++;
    }
    if ($result['page'] < $result['pages']) {
        $newResult = $this->_call('datasync.orders_export', array($result['page'] + 1, $result['pagesize']));
        $this->_importOrders($newResult, $pageNumber, $index);
    }

I replaced with:

    $originalPageNumber = $pageNumber;
    do {
        try {
            if ($originalPageNumber == $pageNumber) {
                $this->_clv->printString(Mage::helper('datasync')->__('Loading Orders...') . "\n");
            }
            $result = $this->_call('datasync.orders_export', array($pageNumber, $pageSize));
            if ($originalPageNumber == $pageNumber) {
                $this->_clv->printString(Mage::helper('datasync')->__('Importing Orders...') . "\n");
            }
            $index = 1;
            foreach ($result['items'] as $data) {
                $datasyncOrder->saveOrder($data, $this->_useOriginalIds);
                $this->_clv->printProgress($pageNumber, $result['pagesize'], $result['pages'], $result['page'], $result['total'], $index);
                $index++;
            }
            $pageNumber++;
        } catch (Exception $e) {
            $this->_setOriginalEntityIncrementInfo('order', Mage::getModel('eav/config')->getEntityType('order')->getEntityTypeId(), $this->_storeId);
        }
    } while ($result['page'] < $result['pages']);

Memory accumulation with PHP SoapClient using call() method

1 Answers1