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Dependencies
kxsong edited this page Aug 14, 2012
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| Dependency | Version | Ubuntu Package(s) | Description |
|---|---|---|---|
| PostgreSQL | 9.0+ | postgresql |
Robust RDBMS. Used as primary data store. |
| Cassandra | 1.0+ |
cassandra in ppa:reddit
|
Distributed database. Slowly becoming primary data store. |
| memcached | 1.4+ | memcached |
Fast in-memory caching server. Used throughout reddit. |
| RabbitMQ | 2.0+ | rabbitmq-server |
AMQP server. Used for offline processing. |
| HAProxy | haproxy |
Load balancer for distributing requests to app servers. |
| Dependency | Version | Ubuntu Package(s) | Description |
|---|---|---|---|
| Python | 2.7.x | python-dev |
Headers for building python modules. |
| Setuptools | python-setuptools |
Provides easy_install and support for setup.py. |
|
| Pylons | python-pylons |
Python Web application framework | |
| libmemcached | 0.32+ |
libmemcached5 and libmemcached-dev
|
For communication with memcached. |
| libpqxx | libpqxx-dev |
C++ library for PostgreSQL. | |
| gettext | gettext |
Used for i18n support. |
| Dependency | Version | Ubuntu Package(s) | Description |
|---|---|---|---|
| Git | git-core |
reddit code is stored in Git. | |
| GCC / G++ | g++ |
GNU C++ Compiler. Used for compiling python modules etc. | |
| Cython | 0.14+ | cython |
Performance-intensive code is in Cython for speed. |
| daemontools |
daemontools and daemontools-run
|
Simple daemon management system. | |
| optipng | optipng |
Used to compress auto-generated CSS spritemap. | |
| psql | postgresql-client |
CLI client for managing PostgreSQL. |