NicolasRitouet

---
AWSTemplateFormatVersion: '2010-09-09'
Description: 'Cloudformation stack to manage permission to deploy a serverless service'

Parameters:
  ServiceName:
    Description: Name of the Service you want to deploy
    Type: String
  ServiceName2:
    Description: Name of the 2nd Service you want to deploy

charity

#!/bin/bash -xe
# requires jq 1.5 (or at least > 1.3) and kafkacat

PATH=$PATH:/usr/lib/kafka/bin
topic="hound-staging.retriever-mutation"

which kafkacat || echo 'no kafkacat found, bye!' && exit 1
which jq || echo 'no jq found, bye!' && exit 1

# make sure jq is v 1.5

Jacoby6000

object Implicits {
    implicit class PimpedString(str: String) {
        def everyNthChar(skipNum: Int) = (for (i <- 0 until str.length if i%skipNum==0) yield str(i)).mkString
        //Other methods I want strings to have go here
    } 
    
    implicit class PimpedInt(int: Int){
        //Other methods I want ints to have do here
    }
}

garlandkr

import boto
import datetime

cw = boto.connect_cloudwatch()

instance_id = boto.utils.get_instance_metadata()['instance-id']

now = datetime.datetime.utcnow()
start_time = now - datetime.timedelta(days=1)
namespace = "System"

elben

Using core.async for Producer-consumer Systems

# Set up input file
repeat 10000 echo "." >> input

# Run inline
time lein run inline < input > output

# Run async

mitsuhiko

location /webhook/17cbb307-94ec-446b-a17b-ab82594c974c {
  if ($request_method != 'POST') {
    return 405;
  }
  content_by_lua 'ngx.print(io.popen("/path/to/script.sh"):read("*a"))';
}

jkreps

Producer

Setup
bin/kafka-topics.sh --zookeeper esv4-hcl197.grid.linkedin.com:2181 --create --topic test-rep-one --partitions 6 --replication-factor 1
bin/kafka-topics.sh --zookeeper esv4-hcl197.grid.linkedin.com:2181 --create --topic test --partitions 6 --replication-factor 3

Single thread, no replication

bin/kafka-run-class.sh org.apache.kafka.clients.tools.ProducerPerformance test7 50000000 100 -1 acks=1 bootstrap.servers=esv4-hcl198.grid.linkedin.com:9092 buffer.memory=67108864 batch.size=8196

jszmajda

Data Serialization Formats

JSON, MessagePack, and Google's Protocol Buffers are all awesome. Here's how they're awesome on different client environments and how to use them on your rails env.

Some links:

• JSON: http://json.org/
• MsgPack: http://msgpack.org/
• ProtoBufs: https://code.google.com/p/protobuf/

Output from Ruby Client:

trevnorris

The prep-script.sh will setup the latest Node and install the latest perf version on your Linux box.

When you want to generate the flame graph, run the following (folder locations taken from install script):

sudo sysctl kernel.kptr_restrict=0
# May also have to do the following:
# (additional reading http://unix.stackexchange.com/questions/14227/do-i-need-root-admin-permissions-to-run-userspace-perf-tool-perf-events-ar )
sudo sysctl kernel.perf_event_paranoid=0

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