Skip to main content

ATG Search - performance decisions in Enterprise search

Read more about the basic design decisions for a commerce search setup @ http://tips4ufromsony.blogspot.in/2012/03/basic-design-decisions-for-commerce.html

Read more about search engine tuning @ http://tips4ufromsony.blogspot.in/2012/02/atg-search-search-engine-tuning.html

Following items will affect search performance:  number of items to be searched, quantity of content for each item, number of meta tags, number of facets, Search Merchandising settings, constraints, number of returned results,... You could find a detailed analysis below :

1. Decide how many search engines you need : Based on the performance requirement of the ecommerce site, create the Search Project @ BCC - Search Admin and add the search engine hosts. Read more about search project creation and search engine host set up @  http://tips4ufromsony.blogspot.com/2012/01/atg-search-how-to-create-search-project.html.

2. Decide the search indexing properties : Search indexing time and search response time are dependent on the index file size. As part of verification process, the irrelevant attributes from search index definition file should be removed. As a result, users will view relevant results with less number of attributes and also will get improvements in search indexing time.

3. Decide how many search projects you need : If your application is a multi locale application, you could create multiple search project for each locale. This will give you more options for each locale and a separate search engine can support a locale. Read more about search project creation @  http://tips4ufromsony.blogspot.com/2012/01/atg-search-how-to-create-search-project.html.

4. Decide whether you need to do parallel search indexing : If you have multiple search projects, you could do parallel search indexing and improve search indexing performnace.

5. One search engine per box : Search engines should always run on their own machine, with no other applications running.  This is critical for machines responding to search queries to ensure proper and consistent user experience.

6. Indexing engine box : The search engine used for indexing should not be run on the same server as an engine used for query response.  The search engine used for indexing is preferred to be run on its own machine (with no other applications), but can be run on the CA/BCC.  If this is done, the CA machines should be deployed with extra power (CPU speed and cores, RAM) so that indexing does not affect BCC user experience.


Comments

Popular posts from this blog

JBoss - know more about the JBoss directory structure

Fundamentally, the JBoss architecture consists of the JMX MBean server, the microkernel, and a set of pluggable component services - the MBeans. The JBoss Application Server ships with three different server configurations. Within the <JBoss_Home>/server directory, you will find three subdirectories: minimal, default and all. The default configuration is the one used if you don’t specify another one when starting up the server. If you want to know which services are configured in each of these instances, look at the jboss-service.xml file in the <JBoss_Home>/server/<instance-name>/conf/ directory and also the configuration files in the <JBoss_Home>/server/<instance-name>/deploy directory. JBoss 4.0 features an embedded Apache Tomcat 5.5 servlet container. conf --> The conf directory contains the jboss-service.xml bootstrap descriptor file for a given server configuration. This has the jboss-log4j.xml file which configures the Apach...

ATG CA - BCC home screen : how to add a new link

          Activity source is the property which controls the links on the left nav on the BCC home screen. All activity sources are registered with the ActivityManager component at /atg/bizui/activity/ActivityManager . When rendering the BCC home page, the ActivityManager cycles through all the registered ActivitySource components and displays left navigation links for each of them on the BCC home page. For example if I want to add a new link "My New Link" , below screen shots exaplins how this can be done 1. Add  activityManager.properties to specify the activityresources. In this  activityManager, I specified one MyActivitySource. 2. Add  MyActivitySource.properties  to specify the name of the link and the other details . Here it refers to a bundle properties file.  3. Add  the bundle properties file  to specify the name of the link.  4. Now you could see the new link...

Eclipse plug-in to create Class and Sequence diagrams

ModelGoon is an Eclipse plug-in avaiable for UML diagram generation from Java code. It can be used to generate Package Dependencies Diagram, Class Diagram, Interaction Diagram and Sequence Diagram. You coud get it from http://marketplace.eclipse.org/content/modelgoon-uml4java Read more about it and see some vedios about how to create the class and sequence diagram @ http://www.modelgoon.org/?tag=eclipse-plugin Find some snapshots below which gives an idea about the diagram generation.

ATG Search - high level overview of product-catalog-output-config.xml and XHTMLs

The definition file format begins with a top-level item element that specifies the repository and item descriptor to use, and then lists the properties of that item type to include. The top-level item element has the is-document attribute set to true. This attribute specifies that an XHTML document should be generated for each item of that type (in this case, each user item). Property values that come from standard JavaBean properties of the RepositoryItem object (rather than dynamic bean properties) are specified using a dollar-sign ($) prefix. The item element has an is-multi attribute for specifying multi-value properties. If a property is an Array, Collection or Map  you should set this attribute to true. Eeach ATG Search document is uniquely identified by a URL (typically the path name of the file on the file system). In the XHTML documents that the ATG platform generates from repository items, meta properties are represented by meta tags in the head of the document, whi...

ATG Product Catalog schema ER diagram

Check out the O rder schema ER-Diagram @   http://tips4ufromsony.blogspot.in/2012/02/atg-order-schema-er-diagram.html Check out the User Profile  schema ER-Diagram @ http://tips4ufromsony.blogspot.in/2012/03/atg-user-profile-schema-er-diagram.html If you would like to know the relationship between different Product Catalog tables, please find below screen shots of  Product Catalog schema ER Diagrams.