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Author Topic: Big data caused memory exhausted  (Read 8761 times)

Offline smallfish

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Big data caused memory exhausted
« on: December 29, 2016, 12:32:47 AM »
2016-12-29 5:11:55 - error:  AbanteCart core v.1.2.9 Allowed memory size of 536870912 bytes exhausted (tried to allocate 15757865 bytes) in <b>core/lib/cache.php</b> on line <b>221</b>
I have increased the memory_limit to 512MB or 1024MB but still can't solve it. I have 380 thousands of products (testing data) in the database.
This line
      if (!is_null($data) && $this->enabled && $this->cache_driver && $this->cache_driver->isSupported()){
         $data = serialize($data);
get problem. If I disable the ( Use SEO URL's ) or disable (Cache) in backend setting, this error will not occur.
I have enabled the XCache to speed up the loading of the product listing pages since I have 380 thousands of products in the database.
Please try to fix this problem and improve the code.
Thank you!
« Last Edit: December 29, 2016, 05:02:52 AM by smallfish »

Offline eCommerce Core

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Re: Big data caused memory exhausted
« Reply #1 on: December 29, 2016, 08:16:37 AM »
Can you tell us what operation / request cause this issue? What version of AbanteCart is this?
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Offline smallfish

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Re: Big data caused memory exhausted
« Reply #2 on: December 29, 2016, 10:19:55 AM »
abantecart v.1.2.9, enabled SEO in backend, enabled xCache, inserted 380 thousands of dummy products, then tried to open the front store but failed. The above error occurred.
If disable SEO in backend, there is no problem.

Offline eCommerce Core

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Re: Big data caused memory exhausted
« Reply #3 on: December 29, 2016, 10:45:53 PM »
Let's try to pinpoint the problem. Can you try file based cache or memcache with SEO on?

“If you’re in the luckiest one per cent of humanity, you owe it to the rest of humanity to think about the other 99 per cent.”
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Offline smallfish

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Re: Big data caused memory exhausted
« Reply #4 on: December 30, 2016, 02:37:24 AM »
Let's try to pinpoint the problem. Can you try file based cache or memcache with SEO on?

File based cache also has this problem. Problem is still caused by serialize(). Abantecart needs to read the big data (here should be the table abc_url_aliases) a few times. (limit the max. no. of records each time). If not, Serialize() can't handle it.
« Last Edit: December 30, 2016, 04:15:15 AM by smallfish »

Offline eCommerce Core

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Re: Big data caused memory exhausted
« Reply #5 on: December 31, 2016, 08:56:10 AM »
Thank you for an update. I will check this an look for solution.
“If you’re in the luckiest one per cent of humanity, you owe it to the rest of humanity to think about the other 99 per cent.”
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Offline eCommerce Core

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Re: Big data caused memory exhausted
« Reply #6 on: December 31, 2016, 08:33:43 PM »
SEO URLs are not cached. We need to fid our what cache in particular is oversized.
Basically, that part will need to be restructured a bit to handle such a large number of products.

Can you please check the size of files in cache directory and locate 3 largest files?
“If you’re in the luckiest one per cent of humanity, you owe it to the rest of humanity to think about the other 99 per cent.”
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Offline abantecart

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Re: Big data caused memory exhausted
« Reply #7 on: January 01, 2017, 03:36:51 PM »
It would be great exercise to tune AbanteCart for 380k products. Anxious to see it working.

Smallfish, let's work together on this
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Offline smallfish

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Re: Big data caused memory exhausted
« Reply #8 on: January 03, 2017, 02:19:51 AM »
The largest files in in /cache/category/ is 13KB
/cache/extension/ is 15KB
/cache/html_cache/ is 15KB
/cache/resource/ is 12KB
/cache/setting/ is 32KB

Here is the script for generate 380K records (need to run 10 times, because the script will timeout after 3xxxx records in my server)
You can try to generate the dummy records in your testing server
=============================================
<?php
header("Content-Type: text/html; charset=utf-8");

// Database .............
//ini_set('max_execution_time', '3600');
$server = 'localhost:3306';
$database = 'yourdatabasename'; //change this
$datauser = 'databaseusername'; //change this
$password = 'password';         //change this
$connection = mysql_connect($server,$datauser,$password);

if (!$connection) {
die('Could not connect to MySQL database, the server return the error: '.mysql_error());
}

$db = @mysql_select_db($database);
@mysql_query("SET CHARACTER SET UTF8");

if (!mysql_query("SET NAMES 'utf8'", $connection))
return false;



for ($i=1; $i<=50000; $i++) {   //need to advance the $i value to new value for each running of this script , i.e for the 2nd time running this script, $i=50001; $i<=100000; I need to run 10times of this script because the script will timeout after generate 3xxxx records00
   $d = date("Y-m-d");
   $t = date("Y-m-d H:i:s");
   $end_date = date("Y-m-d", mktime(0, 0, 0, date("m"),   date("d"),   date("Y")+20));
   $itemcode = "Item " . substr('0000000000' . $i, -8);
   $athumb =  "catalog/demo/htc_touch_hd_1.jpg";
   $brand = 15;
   $price = 100;
   $points = 100;
   $cost = 60;
   $weight = 1;
   $weburl = "location A";
   $topcat = 43;
   $maincat = 48;

   mysql_query("INSERT INTO abc_products (location, model, quantity, stock_status_id, manufacturer_id, shipping, price, weight, weight_class_id, status, date_available, date_added, date_modified, cost) VALUES ('$weburl', '$itemcode', '100', '3', '$brand', '1', '$price', '$weight', '1', '1', '$d', '$t', '$t', '$cost') ");
   $product_id = mysql_insert_id();
   $goods_id = $product_id;
   $company =0;
   mysql_query("INSERT INTO abc_products_to_categories (product_id, category_id) VALUES ('$goods_id', '$maincat') ");
   mysql_query("INSERT INTO abc_products_to_categories (product_id, category_id) VALUES ('$goods_id', '$topcat') ");
   mysql_query("INSERT INTO abc_products_to_stores (product_id, store_id) VALUES ('$product_id', '$company') ");

   $title = "Title " . $itemcode;
   $alldesc1 = "商品說明 " . $itemcode;  //Chinese name
   $alldesc2 = "Product Description " . $itemcode;  //English name
   $picpath2 = "18/79/1.jpg";

   mysql_query("INSERT INTO abc_resource_library (type_id, date_added, date_modified) VALUES ('1', '$t', '$t')");
   $resource_id = mysql_insert_id();
   mysql_query("INSERT INTO abc_resource_map (resource_id, object_name, object_id, sort_order, date_added, date_modified) VALUE ('$resource_id', 'products', '$product_id', '2', '$t', '$t') ");

   mysql_query("INSERT INTO abc_resource_descriptions (resource_id, language_id, name, title, description, resource_path, resource_code, date_added, date_modified) VALUES ('$resource_id', '1', '$alldesc1', '$title', '', '$picpath2', '', '$t', '$t')");
   mysql_query("INSERT INTO abc_resource_descriptions (resource_id, language_id, name, title, description, resource_path, resource_code, date_added, date_modified) VALUES ('$resource_id', '2', '$alldesc2', '$title', '', '$picpath2', '', '$t', '$t')");

   $keyword = "Keyword-" . substr('0000000000' . $i, -8);
   $key1 = "product_id=$product_id";
   $keyw1 = $keyword . "-en";
   $keyw2 = $keyword . "-hk";

   mysql_query("INSERT INTO abc_url_aliases  (language_id, query, keyword) VALUES ('1', '$key1', '$keyw1') ");
   mysql_query("INSERT INTO abc_url_aliases  (language_id, query, keyword) VALUES ('2', '$key1', '$keyw2') ");


   mysql_query("INSERT INTO abc_product_descriptions (product_id, language_id, name, meta_keywords, meta_description, description) VALUES ('$product_id', '1', '$title', '$title', '$title', '$alldesc1')" );
   mysql_query("INSERT INTO abc_product_descriptions (product_id, language_id, name, meta_keywords, meta_description, description) VALUES ('$product_id', '2', '$title', '$title', '$title', '$alldesc2')" );


   $mprice = 99;
   $vprice = 98;
   $vvprice = 97;
   mysql_query("INSERT INTO abc_product_discounts (product_id, customer_group_id, quantity, price) VALUES ('$product_id', '8', '1', '$mprice') ");  //reg. member price;
   mysql_query("INSERT INTO abc_product_discounts (product_id, customer_group_id, quantity, price) VALUES ('$product_id', '9', '1', '$vprice') ");  //vip. member price;
   mysql_query("INSERT INTO abc_product_discounts (product_id, customer_group_id, quantity, price) VALUES ('$product_id', '10', '1', '$vvprice') ");  //wholesale. member price;



   mysql_query("INSERT INTO abc_product_options (product_id, status, element_type, required) VALUES ('$product_id', '1', 'S', '1') ");
   $product_option_id = mysql_insert_id();   

   $oname = "color";
   mysql_query("INSERT INTO abc_product_option_descriptions (product_option_id, language_id, product_id, name) VALUES ('$product_option_id', '1', '$product_id', '$oname')");
   mysql_query("INSERT INTO abc_product_option_descriptions (product_option_id, language_id, product_id, name) VALUES ('$product_option_id', '2', '$product_id', '$oname')");

   $optprice =0;
   $weight = 0;

   for ($h = 1; $h <= 10; $h++) {

          mysql_query("INSERT INTO abc_product_option_values (product_option_id, product_id, quantity, subtract, price, prefix, weight, weight_type, attribute_value_id, sort_order)
   VALUES ('$product_option_id', '$product_id', '50', '0', '$optprice', '$', '$weight', 'kg', '0', '0')");
          $product_option_value_id =  mysql_insert_id();       
          $color = 50;
          $optprice = 0;

      $optvalue = "Color " . $h;
      mysql_query("INSERT INTO abc_product_option_value_descriptions (product_option_value_id, language_id, product_id, name, grouped_attribute_names) VALUES ('$product_option_value_id', '1', '$product_id', '$optvalue', '')" );
      mysql_query("INSERT INTO abc_product_option_value_descriptions (product_option_value_id, language_id, product_id, name, grouped_attribute_names) VALUES ('$product_option_value_id', '2', '$product_id', '$optvalue', '')" );   

      
   }

}


echo "end of program...";
die();

?>

« Last Edit: January 03, 2017, 10:50:02 AM by smallfish »

Offline eCommerce Core

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Re: Big data caused memory exhausted
« Reply #9 on: January 03, 2017, 08:11:54 AM »
Sizes of the files are not that big. I do not think this is the issue here. I will give your script a try and we will see. Thank you.
“If you’re in the luckiest one per cent of humanity, you owe it to the rest of humanity to think about the other 99 per cent.”
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Offline smallfish

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Re: Big data caused memory exhausted
« Reply #10 on: January 03, 2017, 10:17:52 AM »
If you are going to re-design or restructure the cache handling method, please also restructure the home page loading and category/product loading page. Because the loading speed is very slow (take around 20-30 seconds:this is under no traffic environment. if the website is published, it will take a longer time to load the page) for opening the page if the product table is big.
« Last Edit: January 03, 2017, 10:27:01 AM by smallfish »

Offline eCommerce Core

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Re: Big data caused memory exhausted
« Reply #11 on: January 03, 2017, 10:28:40 PM »
Main page was well optimized before. See if HTML cache improves your main page.

with 380k+ products my storefront is fast and nothing crashes. I will try tomorrow to add more products.
« Last Edit: January 03, 2017, 11:07:23 PM by eCommerce Core »
“If you’re in the luckiest one per cent of humanity, you owe it to the rest of humanity to think about the other 99 per cent.”
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Offline smallfish

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Re: Big data caused memory exhausted
« Reply #12 on: January 04, 2017, 05:42:42 AM »
I installed abantecart v.1.2.9 on Debian 8 server with 32GB Ram, Xeon CPU L5630 x 2, 256GB SSD x 4 (Dell H700 Raid card, set raid 10), 4TB Hardisk x 6 (set raid 10). Mysql was installed on the SSD.
Running on PHP Version 5.6.29-0+deb8u1 (FPM).
Besides, I also install it on another Debian server with 16GB Ram, Intel i3, 3TB Hardisk x 4 (Raid 10). But the results are the same after insert 380K products. The page display HTTP 500 Error and find  memory exhausted error.
HTML cache can improve it. But if I clear the cache (because some new products are added, need to clear the cache) and visit the front page again, the loading speed is very slow.
For the category / product listing page, the loading speed is more slowly. If the page is not cached, the first person who open the page will take a long time.
Besides, do you enable the "Use SEO URL's" in "Setting/System" abantecart backend admin?

« Last Edit: January 04, 2017, 05:46:19 AM by smallfish »

Offline eCommerce Core

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Re: Big data caused memory exhausted
« Reply #13 on: January 04, 2017, 09:28:21 AM »
I am trying to replicate your issue. Currently I have 415448 products loaded and I do not get any major issues. I see some slower selects in the admin, but that could be expected.
Computer is with 4gb of ram with 128mb for PHP with file cache ON and SEO is ON. PHP Version 5.5.6

I will try to investigate more.
« Last Edit: January 04, 2017, 09:31:06 AM by eCommerce Core »
“If you’re in the luckiest one per cent of humanity, you owe it to the rest of humanity to think about the other 99 per cent.”
― Warren Buffett

Offline smallfish

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Re: Big data caused memory exhausted
« Reply #14 on: January 04, 2017, 09:40:44 AM »
I have reset the memory_limit to 512M in php.ini (previous setting is 256M) again. This time it works without error. I think that I may modify the incorrect php.ini file previously.
I will try to test it again. But the time for loading of category / product listing page is too long. Hope abantecart team can improve it.
I put all the dummy products in category "Skincare" (380K+ dummy products). When I click "Skincare", it takes very long time to open the products listing page. However, even the category "Makeup" (only 6 demo products), it still takes very long time to open the products listing page. (6 products should be assumed to be opened within 1 second in good design)
Thank you!
« Last Edit: January 04, 2017, 12:19:42 PM by smallfish »

 

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