I don't know if this has come up yet but....

[Amy Nielsen]

Once again I like learning new things regarding open source, I had no idea
Craigslist did any of this. I am realizing how big and widespread Linux and
Open Source has become, it is exciting!

On Wed, Jun 24, 2015 at 4:27 PM, Michael Havens <bmike1 at gmail.com> wrote:

> 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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-- 


*Amy Nielsen*
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