July 2009
Intermediate to advanced
887 pages
21h 8m
English
Content preview from Developing Web Applications with Perl, memcached, MySQL® and ApacheBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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Chapter 10. Memcached Functions for MySQL
You were introduced to memcached in Chapter 8 where you learned about Cache::Memcached and how to write programs to use memcached. In Chapter 9, you learned about libmemcached, a faster client library. So, you should now have a good idea how to use memcached with Perl.
What about memcached and MySQL? Is there any sort of interoperability between the two, since they are so commonly used together? It would be great if there was some sort of "glue" between the two, without having to write Perl code, to get data to and from MySQL and memcached.
Well there is. This is why the Memcached Functions for MySQL, aka memcached UDFs, were written.
What Are Memcached Functions for MySQL?
MySQL has an API for writing user-defined functions (otherwise known as UDFs), as you learned in Chapter 3. There, you saw the example of a UDF using libcurl. Because the UDF API is so flexible, it's possible to write many different functions to do a number of things. With the advent of libmemcached, it became obvious that there could be UDFs that interact with memcached through libmemcached and provide all the functionality that one would normally implement with an external language at the application layer.
The Memcached Functions for MySQL, written by Patrick Galbraith and Brian Aker, are a suite of functions available to use with MySQL that allow you to store, retrieve, and delete data, as well as perform most of the functions/operations that are available with libmemcached, ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.