Costruire un sito e-commerce in alta affidabilità con Magento e Zend Server Cluster Manager

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Performance, High Availability, and Scalability of Magento using Zend Serverby Enrico ZimuelSenior Consultant & ArchitectZend Technologies

[email protected]

mailto:[email protected]


About me● Senior Consultant and Architect at Zend

Technologies since 2008

● Software Engineer since 1996: C/C++, Java, PHP, Perl, VB/C#/ASP.NET, JavaScript

● More than 10 years of experience in PHP

● International speaker at web conferences: PHPCon, PHP Barcelona Conference, PHPDay, ZendCon, etc

● B.Sc. (Hons) in Economics and Computer Science

● Blog on web dev't: http://www.zimuel.it/blog

http://www.zimuel.it/blog


Summary

● What is Magento?

● What is Zend Server?

● How to optimize the performance of Magento using Zend Server

● Zend Server Cluster Manager

● High availability and scalability of Magento using Zend Server Cluster Manager


Magento


What is Magento?● An open source feature-rich eCommerce platform

● Developed in PHP with Zend Framework

● First stable release March 2008

● Main features:

▶ Flexible▶ Extendable▶ Modular▶ Upgradable▶ Scalable

http://www.magentocommerce.com


Magento flavors● Magento Community

▶ Free to download and use

● Magento Professional▶ Annual subscription version

▶ Supported by Magento Solution Partners

▶ Warranty included

● Magento Enterprise ▶ Annual subscription version

▶ World class support (SLA)

▶ Additional feature set

▶ Warranty included


Zend Server


What is Zend Server?● Production ready, complete

PHP application stack

● Application monitoring and problem diagnostics

● Multi-level performance enhancement capabilities

● Cluster management, High Availability, Scalable

● Technical support, software updates and security hot fixes http://www.zend.com/server/


Zend Server flavors● Zend Server Community Edition

▶ Free to download and use

▶ Zend Optimizer+ (PHP accelerator)

▶ Zend Data Cache

▶ Java Bridge

● Zend Server▶ Annual subscription version


▶ Additional feature set: Monitoring, Code Tracing, Job Queue, Page Caching, etc

▶ Software updates and security hot fixes


Zend Server flavors (2)

● Zend Server Cluster Manager▶ Annual subscription version


▶ Additional feature set: Monitoring, Code Tracing, Job Queue, Page Caching, etc

▶ Cluster Manager

▶ Session Clustering

▶ High availability

▶ Scalable architecture

▶ Software updates and security hot fixes


Performance improvement of Magento using

Zend Server


Getting better performance from Magento

● Magento optimization▶ Magento Native Cache

▶ Magento Compilation Module

● Running Magento on Zend Server▶ PHP opcode accelerator (Zend Optimizer+)

▶ Zend Server Data Cache

▶ Zend Server Page Caching

▶ Diagnosing performance problems


Magento native cache

● Magento uses Zend_Cache (Zend Framework class) for data caching

● Supported backends modules:

▶ File

▶ APC

▶ eAccelerator

● File system backend (default)

● Cache backend model specified in app/etc/local.xml

● Cache configuration examples can be found inapp/etc/local.xml.additional

●

▶ memcached

▶ Zend Server

▶ etc


Major cached entities

● Configuration

● Page Layouts

● HTML Blocks (top navigation, footer, etc)

● Translations

● Data collections (website collection, store collection, store view collection, etc)


Magento compilation module

● Goal: decrease number of file system operations (I/O)

● By default Magento uses 4 additional directories in include_path in the following order:

▶ app/code/local▶ app/code/community▶ app/code/core▶ lib

● This schema provides extensibility and flexibility and allows to fully rewrite code of some classes but yet keeps upgradability


Magento compilation module: process

● Copy all the php files to the 4 dirs into one folder (include/src) and declare one directory for include_path. This step give 10-25% improvemente in performance.

● Aggregate code of most used php classes to “scope include” files.

▶ For instance Varien_Object, Mage_Core_Model_Abstract, Zend_Cache are included in every request. The classes are aggregated to the “default scope include” file.

● Note: compilation needs to be disabled when upgrading or developing and should be enabled in production


Zend Optimizer+: PHP opcode accelerator

● Caching compiled PHP opcode in shared memory

● Automatically enabled when you run PHP applications using Zend Server

● Usually provide a very significant performance boost


Zend Server Page Caching

● Caches entire HTTP response

● The rule caching is based on different parameters: URL, $_SESSION, $_SERVER, $_GET, $_COOKIE

● Performance gains are usually very high

● Typically doesn't require code changes


Example: cache /js/index.php


Real use case: Zend's online store


Diagnosing performance problems

● Bult-in application monitoring alerts on script execution slowdowns

● Problem diagnostics enables quick problem isolation

● Code-level profiling and analysis performed with:

▶ Code Tracing▶ Integration with Zend Studio


Zend Server Cluster Manager


Zend Server Cluster Manager

● Zend Server Cluster Manager extends the benefits of Zend Server across large-scale PHP deployments

● With Zend Server Cluster Manager you can implement solutions of:

▶ High Availability▶ Scalability ▶ Central management


Zend Server Cluster Manager architecture

Load Balancer

MySQL

Firewall


High availability: session cluster


High availability: session cluster (2)


High availability and Scalability

of Magento using Zend Server Cluster Manager


Magento session handlers

● Magento supports different PHP session handlers:▶ file

▶ eaccelerator

▶ memcached

▶ db

● Right now, the version 1.4 of Magento doesn't support the session clustering of Zend Server but there is a patch to enable the session cluster:

http://arr.gr/magento/magento-1.4-trunk-r69862-issue-23361-01.patch

● This patch will be included in the future version of Magento

http://arr.gr/magento/magento-1.4-trunk-r69862-issue-23361-01.patch


The patch

● Edit the file app/code/core/Mage/Core/Model/Session/Abstract/Varien.php

● Add the following lines (with +):▶ @@ -59,6 +59,11 @@

case 'eaccelerator': ini_set('session.save_handler', 'eaccelerator'); break;++ case 'cluster':+ ini_set('session.save_handler', 'cluster');+ break;+ default: session_module_name('files'); if (is_writable(Mage::getBaseDir('session'))) {


High Availability and Scalability for Magento

● Using Zend Server Cluster Manager you can implement an high availability and scalability architecture for Magento

● For a Magento ecommerce web sites the advantages using Zend Server Cluster Manager are:

▶ High availability = Never loose customers

▶ Scalability = Increment the number of customers

▶ Central management = Better support to the customers


Questions?


Thank you!

More info:http://www.zend.comhttp://www.magentocommerce.com

http://www.zend.com/

http://www.magentocommerce.com/

Costruire un sito e-commerce in alta affidabilità con Magento e Zend Server Cluster Manager

Technology

zend technologies

cache zend frameworkclass

zend servercluster manager

performance of magento

default magento

andscalability of magento

php files

data caching