By Patrick Galbraith
Including a cache layer to the preferred LAMP stack is changing into the typical strategy to considerably lessen the weight on back-end databases, and in addition enables greater internet program functionality. This new caching part is represented via one other "m" in LAMMP, which stands for memcached - a high-performance, dispensed reminiscence item caching method that offers caching for internet purposes. the writer walks you thru the method of utilizing Perl to boost internet purposes either when it comes to the front-end show common sense in addition to the back-end information retrieval from MySQL and memcached. you furthermore mght see how one can configure the Apache internet server to run those mod_perl functions.
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Extra resources for Developing Web Applications with Apache, MySQL, memcached, and Perl
It uses the Maria Storage Engine as the default storage engine. The goal of MariaDB is to keep up with MySQL development and maintain user compatibility, but also to keep improving the database and adding more features while engaging the open-source community in this effort. ❑ Gearman: With MapReduce becoming a household word, Gearman will increasingly play a significant role in distributed computing. ❑ Apache Hadoop: Similar to Gearman, this is a Java-based framework for distributed computing.
And 70 Web Serv. Flickr 14 memcached vs. 144 DS Serv. and 244 Web Serv. Wikipedia 79 memcached vs. 30 DS Serv. Hi5 Memcached!!! 16 Figure 1-3 Sun Microsystems Indeed, memcached is a now primary component to the LAMMP stack. This book will attempt to show you why. Things you will learn in this book include: ❑ How memcached works ❑ What read-through and write-through caches are and can do ❑ Caching issues you should be aware of ❑ How to set up and configure memcached ❑ How to write Perl programs that use memcached ❑ The new libmemcached client library, which gives you even more performance for writing Perl programs that use memcached ❑ The Memcached Functions for MySQL, which are user-defined functions (UDFs) written by the author.
Dat The text file must be named the same as the table you intend to load the data into. Also, it must be available on the file system in a location that the MySQL server, which runs usually as the mysql user, can read it. Though it should also be noted that if you can connect to a remote server and the file you want to load is only available from the client host you are connecting from, you can have the server read the data file using the --local option on the client, as well as requiring you to set the option --local-infile when you start the server.