flickr’s architecture & php

Flickr and PHPCal HendersonWhat’s Flickr• Photo sharing• Open APIsLogical ArchitecturePhoto StorageDatabaseNode ServiceApplication LogicPage LogicAPITemplatesEndpointsEmailFlickr.com3rd Party AppsFlickr AppsUsersPhysical ArchitectureStatic ServersDatabase ServersNode ServersWeb ServersUsersWhere is PHP?Photo StorageDatabaseNode ServiceApplication LogicPage LogicAPITemplatesEndpointsEmailFlickr.com3rd Party AppsFlickr AppsUsersOther than PHP?• Smarty for templating• PEAR for XML and Email parsing• Perl for controlling…• ImageMagick, for image processing• MySQL (4.0 / InnoDb)• Java, for the node service• Apache 2, Redhat, etc. etc.Big Application?• One programmer, one designer, etc.• ~60,000 lines of PHP code• ~60,000 lines of templates• ~70 custom smarty functions/modifiers• ~25,000 DB transactions/second at peak• ~1000 pages per second at peakThinking outside the web app• Services– Atom/RSS/RDF Feeds– APIs• SOAP• XML-RPC• REST• PEAR::XML::TreeMore cool stuff• Email interface– Postfix– PHP– PEAR::Mail::mimeDecode• FTP• Uploading API• Authentication API• UnicodeEven more stuff• Real time application• Cool flash apps• Blogging– Blogger API (1 & 2)– Metaweblog API– Atom– LiveJournalDocument Outline

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