I was perusing craigslist and noticed a link that said 'open source'. Being the ever-curious lad of 44 I clicked the link and wish to share what I found:
<quote> craigslist is a big believer in open source software <http://en.wikipedia.org/wiki/Open-source_software>, and relies heavily <http://www.craigslist.org/about/thanks> on Linux, MySQL, Perl, Apache, Sphinx, Redis, Haraka, and many others. craigslist (CL) has released the following open source projects: CL blob service <https://github.com/craigslist/python-clblob> - a simple HTTP-based, multi-master storage service designed for scale-out and multi-datacenter deployments: - multi-master architecture with no single point of failure - scales well for both read and write intensive workloads - tracks TTLs for automatic expiration and purging of blobs - designed for both local and multiple data center replication - pluggable index and storage interface (uses SQLite for index and filesystem for storage by default) CL image service <https://github.com/craigslist/python-climage> - large scale image resizing and processing HTTP service: - flexible API to choose any quality, size, and center-cropping - automatically handles orientation operations from EXIF data - stores resized images in the blob service (could use other stores) memcache cluster proxy (MCP) <https://github.com/craigslist/mcp> - a high-performance modular clustering HTTP reverse proxy: - high-performance event-driven daemon - flexible configuration, easily extensible framework - uses standard memcached memory store for caching - supports PCRE and rule-based traffic routing by URL, headers, and more - tracks health of origin servers, routes around failures - provides configurable URL redirects, rewrites, and real-time header transformations In addition, craigslist contributes code to the following open source projects: Haraka <http://haraka.github.io/>: - added the smtp_client code that helps support pooled connections for proxy queues - rewrote all of the smtp_proxy and smtp_forward code - major contributions to the test suite - plugin that does strict DNS checking, DNS access control lists - contributions to bannering support - logging infrastructure changes for more robust logging - plugins for aliases, access lists, etc. Redis <https://github.com/antirez/redis>: - perl-AnyEvent-Redis-Federated: an event-based redis client that implements client-side sharding in Perl - redis_util: s collection of utilities for node-redis - provided support for included config files Sphinx <http://en.wikipedia.org/wiki/Sphinx_(search_engine)>: - provided the original persistent connections implementation - craigslist sponsors useful sphinx feature developments, such as the TRUNCATE INDEX command for real-time sphinx The craigslist Charitable Fund <http://www.craigslist.org/about/charitable> supports open source nonprofit organizations including: - Apache Software Foundation <http://www.apache.org/> - Free Software Foundation <http://www.fsf.org/> - Gnome Foundation <http://www.gnome.org/> - Mozilla Foundation <http://www.mozilla.org/> - Open Source Initiative <http://www.opensource.org/> - OpenStreetMap.us <http://openstreetmap.us/> - Perl Foundation <http://www.perlfoundation.org/> - PostgreSQL <http://www.postgresql.org/> - Python Software Foundation <http://www.python.org/> - Software in the Public Interest <http://www.spi-inc.org/> </quote> Isn't that cool! -- :-)~MIKE~(-:
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