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Backend Architectures



ror, scala, jetty, erlang, thrift, mongrel, comet server, my-sql, memchached, varnish, kestrel(mq), starling, gizzard, cassandra, hadoop, vertica, munin, nagios, awstats


php (with hiphop compiler), thrift, java(tomcat, jetty, minor),epoll, erlang, tornado, nodejs my-sql, memcahced, hadoop, hbase, hive, scribe(-hdfs), bigpipe, varnish, haystack, cassandra

Tumblr (Korean)

centos, sciapache, apache, nginx, (move out of)php, scala(selection), ruby, thrift, my-sql, redis, hbase, memcached, gearman, kafka, kestrel, finagle, varnish, ha-proxy, func, capistrano, puppet, jenkins


aws(ec2, s3), ubuntu, cloudfront, python, pylons, paste, tornado, thrift, comet server, memcached, haproxy, nginx


python, django, tornado, node.js, rabbitmq, nginx, haproxy, varnish, memcached, membase, redis, my-sql, mrjob, hadoop(elastic map reduce)

Instagram (Korean)

aws(s3, ebs), cloudfront, ubuntu, django(high-cpu extra-large), gunicorn, fabric, gearman, pyapns, twisted, postgre-sql(quadruple extra-large), mdadm(sofeware raid with ebs), repmgr, pgbouncer, redis, memcached, node2dm, munin, pingdom, pagerduty, sentry


aws(ec2, s3, elb), tornado, scribe, mrjob, node-readability, haproxy, tornado, gae, mapreduce, django(appengine), google-cloud-storage, memcache, redis


aws(ec2, s3, ebs, rds, dynamodb, sdb, sqs, sns, emr, elb, eip, vpc, direct-connect, iam), java(tomcat), mongodb, my-sql, casandra, hadoop, zookeeper, evcache, asgard, groovy, grails, zuul, priam and more netflix opensouces)


linux(2.6), nginx, uwsgi, aws(s3), dotcloud, mysql, redis, celery


ubuntu(12.04), aws(ec2, s3, elb), nginx, werkzeug, flask, postgre-sql, pgpool, memcached, gevent, celery, rabbitmq, fabric, boto, exceptional, flask-exceptional


rabbitmq, celery, phash

TheBorn Coupon(더본쿠폰)

ubuntu(12.04), nhn ncloud, django, apache, mod_wsgi, ms-sql, memcached, fabric, south, wand, rsync, py-bcrypt, python-gcm, apns

Lezhin Comics(레진코믹스)

gae, "천만명 이하 규모는 구글 앱 엔진을 써도 충분하다."




  • PostgreSQL: most advanced open source database.
  • repmgr: open source tools that helps DBAs and System administrators manage a cluster of PostgreSQL databases.
  • pgpool Wiki: middleware that works between PostgreSQL servers and a PostgreSQL database client.
  • PgBouncer: lightweight connection pooler for PostgreSQL.
  • SQLAlchemy: Python SQL toolkit and Object Relational Mapper that gives application developers the full power and flexibility of SQL.
  • South: intelligent schema and data migrations for ​Django projects.
  • twitter/gizzard · GitHub: flexible sharding framework for creating eventually-consistent distributed datastores
  • cassandra: used for high velocity writes, and lower velocity reads
  • hadoop: process unstructured and large datasets, hundreds of billions of rows.
  • vertica: used for analytics and large aggregations and joins so they don't have to write MapReduce jobs. (twitter)
  • mrjob: Run MapReduce jobs on Hadoop or Amazon Web Services
  • Apache Solr: popular, blazing fast open source enterprise search platform from the Apache LuceneTM project
  • fatcache: Memcache on SSD.
  • google-cloud-storage: Store, access and manage your data on Google’s storage infrastructure. Take advantage of the scale and efficiency we have built over the years.
  • haystack: Facebook photo Infrastructure.
  • Netflix/EVCache: distributed in-memory data store for the cloud.
  • GAE, Google App Engine: Lets you run web applications on Google's infrastructure. App Engine applications are easy to build, easy to maintain, and easy to scale as your traffic and data storage needs grow. With App Engine, there are no servers to maintain


  • Fabric: library and command-line tool for streamlining the use of SSH for application deployment or systems administration tasks.
  • boto/boto · GitHub: python interface to aws
  • capistrano/capistrano · GitHub: Remote multi-server automation tool.
  • puppetlabs/puppet · GitHub: Server automation framework and application.
  • Exceptional: Exceptional tracks errors in web apps. It reports them in real-time.and gathers the info you need to fix them fast.
  • jzempel/flask-exceptional · GitHub: Exceptional extension for Flask.
  • rsync: utility that provides fast incremental file transfer.
  • Nagios: The Industry Standard in IT Infrastructure Monitoring
  • Munin: networked resource monitoring tool that can help analyze resource trends
  • AWStats: powerful and featureful tool that generates advanced web, streaming, ftp or mail server statistics, graphically
  • pingdom: Website monitoring. Monitor your server and network uptime and performance for free.
  • sentry: realtime error logging and aggregation platform
  • pagerduty: SaaS IT on-call schedule management, alerting and incident tracking.
  • scribe: server for aggregating log data that's streamed in realtime from clients. It is designed to be scalable and reliable
  • Sphinx: tool that makes it easy to create intelligent and beautiful
  • perceptual hash library
  • dahlia/wand · GitHub: The ctypes-based simple ImageMagick binding for Python.
  • py-bcrypt: strong password hashing for Python.
  • mdadm: manage MD devices aka Linux Software RAID.
  • twitter/snowflake · GitHub: network service for generating unique ID numbers at high scale with some simple guarantees
  • node-readability: Server side readability with node.js
  • Netflix/asgard: Web interface for application deployments and cloud management in Amazon Web Services (AWS)
  • Netflix/Priam: Co-Process for backup/recovery, Token Management, and Centralized Configuration management for Cassandra.
  • Netflix/zuul: edge service that provides dynamic routing, monitoring, resiliency, security, and more.
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