adarshaj

import scala.reflect.runtime.universe._

class AbstractParams[T: TypeTag] {
  def tag: TypeTag[T]  = typeTag[T]
  override def toString: String = {
    // Find all case class fields in concrete class instance and print them as "[field name] [field value]"
    val tag = this.tag
    val tpe = tag.tpe
    val allAccessors = tpe.declarations.collect { case meth: MethodSymbol if meth.isCaseAccessor => meth }
    

adarshaj

Internet Scale Services Checklist

A checklist for designing and developing internet scale services, inspired by James Hamilton's 2007 paper "On Desgining and Deploying Internet-Scale Services."

• http://mvdirona.com/jrh/talksandpapers/jamesrh_lisa.pdf

Basic tenets

• Does the design expect failures to happen regularly and handle them gracefully?
• Have we kept things as simple as possible?

adarshaj

Keybase proof

I hereby claim:

• I am adarshaj on github.
• I am adarshaj (https://keybase.io/adarshaj) on keybase.
• I have a public key ASBC7i-2GWZHiz5LsmGMH2zfepGizjtjAQpPD7V3P9g_BAo

To claim this, I am signing this object:

adarshaj

# increase system IP port limits
net.ipv4.ip_local_port_range=1024 65535
 
# Incoming packets queue length
net.core.netdev_max_backlog=10000
 
# TCP socket max connections num
net.core.somaxconn=262144
 
# Enable syncookies

adarshaj

hashtag = (function () {
  // Twitter's official hashtag verifier.
  // Ported from https://github.com/twitter/twitter-text-rb/blob/master/lib/twitter-text/regex.rb
  
  // Creates a Unicode Regular Expression range
  function regexRange (from, to) {
    to = to || 0;
    
    from = from.toString(16);
    fromLen = (from.length > 4) ? from.length : 4;

adarshaj

###############################################################################
# The MIT License
#
# Copyright 2012-2014 Jakub Jirutka <jakub@jirutka.cz>.
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is

adarshaj

Backend Architectures

Twitter

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

• Introduce Gizzard of Twitter - 트위터의 새로운 분산 관리 라이브러리 Gizzard를 소개합니다.
• The Architecture Twitter Uses to Deal with 150M Active Users, 300K QPS, a 22 MB/S Firehose, and Send Tweets in Under 5 Seconds
• Scaling Twitter: Making Twitter 10000 Percent Faster

adarshaj

Backend Architectures

Twitter

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

• Scaling Twitter: Making Twitter 10000 Percent Faster
• Scaling Twitter
• Blaine Cook on Scaling Twitter - YouTube