matschaffer

jar 'com.netflix.hystrix:hystrix-core', '~>1.2.16'

fedesilva

implicit class In[T](t:T) {
    def in(opts:T*): Boolean = opts contains t
}
  
scala> 1 in ( 2, 3 )
res1: Boolean = false

scala> 1 in ( 2, 3, 2, 1 )
res2: Boolean = true

krishnanraman

/*
Goal: Use Scalding to datamine the 2010 US Census data (kindly provided by @ElonAzoulay & @hmason), to find
Where do the WEALTHY WELL EDUCATED ELITE live ?
WEALTHY == house value quarter million, household income 150k
WELL EDUCATED == sort by edu, edu = (10 * Phd + 5 * MS + 1 * BS) score
*/
import com.twitter.scalding._
import cascading.tuple.Fields
import cascading.tap.SinkMode

aphyr

In this ZK demo, a partition places the primary on the minority component. All
operations time out while the cluster converges on a new primary, at which
point three clients (talking to the three nodes in the majority component) can
proceed again. When the partition is healed, the two minority nodes can begin
accepting writes again. As with single-node Postgres, Zookeeper's client
protocol and ZAB both allow for false negatives (timeouts may actually succeed)
but not false positives (every successful write *will* be present in the final
set.)

HOW TO READ THIS CHART:

miketheman

# S3 translates a '+' in filenames to %2B in the URL, breaking apt
# Here we will traverse any file in the pool/ dir and create a hardlink for
# any file that has a plus in its name. apt/wget will do the right thing.
Dir.chdir('<%= @repo_root %>') do
  plusfiles = Dir.glob '**/*/*+*.deb'
  begin
    plusfiles.each do |file|
      File.link(file, file.gsub('+', ' '))
    end
  rescue SystemCallError # swallow this if file already exists

al3xandru

## Day 1 - Track 1  ##

00:10:00 Pat Helland: Keystone - Between a ROC and a SOFT place
01:12:18 Lindsey Kuper: LVars: Lattice-based Data Structures for Deterministic Parallelism
02:11:54 Eric Redmond: Yokozuna!
04:10:50 Justin Shoffstall & Charlie Voiselle: The Seven-Layer Burrito; Troubleshooting a Distributed Database in Production
05:11:00 Peter Bailis: Bad as I wanna be - Coordination and Consistency in Distributed Databases
06:13:24 Joseph Blomstedt: Bringing Consistency to Riak (Part 2) 
07:16:22 Lightning talks (_nb_: you **must** see @tsantero!)

mtnygard

Reciprocal Needs in the Employment Relation

We can look at two sides of the management coin: What do the individuals get out of it? And what benefit does the whole system derive from it?

I will disregard any benefits that accrue to managers just by holding the position of managing. Those are just circular logic. Circular logic abounds in discussions of management and hierarchy. For example, consider status reports. It will be said that status reports are necessary so managers know what their employees are working on. It’s

dctrwatson

[21174748.746874] INFO: task jsvc:9672 blocked for more than 120 seconds.
[21174748.749104] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[21174748.751489] jsvc            D ffffffff81806240     0  9672   9639 0x00000000
[21174748.751497]  ffff8803436abe08 0000000000000082 ffff8800850bd000 ffffffffffffff98
[21174748.751516]  ffff8803436abfd8 ffff8803436abfd8 ffff8803436abfd8 00000000000137c0
[21174748.751534]  ffff88032bf39700 ffff8805fe535c00 ffff880622cf40c0 ffff8805fe535c00
[21174748.751553] Call Trace:
[21174748.751563]  [<ffffffff8165ba6f>] schedule+0x3f/0x60
[21174748.751573]  [<ffffffff8165d86d>] rwsem_down_failed_common+0xcd/0x170
[21174748.751583]  [<ffffffff8165d923>] rwsem_down_write_failed+0x13/0x20

deserat

The script:

var http = require('http')
var fs = require('fs')


http.createServer(function (req, res) {
  res.writeHead(200, {'Content-Type': 'text/plain'})
  res.end("hello world")
}).listen(3000);

bohde

# graphite-web install is hardcoded in setup.cfg to /opt/graphite
sudo mkdir /opt/graphite
sudo chown brad.users /opt/graphite

# run under python2.7 virtualenv
virtualenv --python=python2.7 ~/ve/graphite
source ~/ve/graphite/bin/activate

# install the necessary python packages (simplejson is for flot graphs)
pip install graphite-web carbon whisper django django-tagging uwsgi simplejson