Monday, April 18. 2005
Farming PHP Preview
Even though issue 03.05 is not out yet, I am already deep in thought about my next article for International PHP Magazine. I’m planning to tap my experience architecting and building scalable web server farms for PHP/MySQL applications to bring you an overview of the issues involved. Combined with the forthcoming issue on Enterprise PHP Coding Standards, this should flesh out some of my thinking and experience implementing PHP solutions for business-critical applications.Some of the issues I’m considering tackling in my “Farming PHP” article include:
Load Balancing versus Round-Robin DNS
Web Log Aggregation
Separating the PHP and SQL layers via a private network:
Configuring multiple interfaces
Naming the network via /etc/hosts
Hardening the network
Leveraging MySQL master/slave replication:
For failover using heartbeat
To offload read-only reporting
For backup
For local read-only operations
Offloading periodic operations to a separate server
Offloading mail sending operations to a separate server using Mail_Queue
Dealing with PHP sessions in a distributed environment
“Sticky” load balancing sessions
Dealing with file uploads in a distribtued environment
Separating the backroom/admin functionality from the public-facing app.
Pushing files to the farm:
Similarities to a compiled model
Establishing homogeneous user/group permissions and root trust
Setting up incremental, periodic file push when necessary
Optional encoding
Maintaining versioning on source code for possible rollback
Using shared filesystems
Modifying existing applications and packages to run on the farm
The importance of coding standards in a farmed environment
The three primary benefits of farming and tradeoffs involved with different approaches:
Redundancy
Scalability
Mantainability
Sound interesting? Stay tuned for more as I flesh out my thinking, prepare diagrams, and otherwise sift through my experiences bringing best-practice scalability to the powerhouse web development combination of PHP and MySQL.
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Farming PHP
Issue 04.05 of PHP Magazine just hit newsstands all over Europe with my article about Farming PHP on the cover. My preview of the subject generated considerable interest from the community, making me realize what an important and far-reaching topic this r
Issue 04.05 of PHP Magazine just hit newsstands all over Europe with my article about Farming PHP on the cover. My preview of the subject generated considerable interest from the community, making me realize what an important and far-reaching topic this r
Weblog: Robert Peake
Tracked: Jun 22, 10:22
Tracked: Jun 22, 10:22
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The editors of PHPDeveloper.org have pointed out that this is probably way too much ground to cover in one article. I agree. I’m looking at the most PHP-relevant components, consolidating and trimming in hopes of giving a solid overview. Comments welcome.
http://www.phpdeveloper.org/index/3008
http://www.phpdeveloper.org/index/3008
Issue 04.05 was just released with this article on the cover story!
http://www.robertpeake.com/archives/86-Farming-PHP.html
http://www.robertpeake.com/archives/86-Farming-PHP.html
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