diegopacheco

Download and install Java JDK 8

sudo yum update -y
sudo yum remove java -y
cd /opt
sudo wget --no-cookies --no-check-certificate --header "Cookie: gpw_e24=http%3A%2F%2Fwww.oracle.com%2F; oraclelicense=accept-securebackup-cookie" "http://download.oracle.com/otn-pub/java/jdk/8u45-b14/jdk-8u45-linux-x64.tar.gz"
sudo tar -xzvf jdk-8u45-linux-x64.tar.gz
sudo rm -rf jdk-8u45-linux-x64.tar.gz

samkeen

First get the Interface mac address, then use that to run the full command

INTERFACE=$(curl --silent http://169.254.169.254/latest/meta-data/network/interfaces/macs/)
SUBNET_ID=$(curl --silent http://169.254.169.254/latest/meta-data/network/interfaces/macs/${INTERFACE}/subnet-id)
VPC_ID=$(curl --silent http://169.254.169.254/latest/meta-data/network/interfaces/macs/${INTERFACE}/vpc-id)

echo SUBNET_ID

eldondevcg

# IF YOU INCUR HUGE COSTS WITH THIS OR IT BREAKS DON'T BLAME ME License

# This is a throw-away script I wrote to pull the json events for all of the streams from a cloudwatch log
# For some reason, the naive way to do vpc network logging does logging to different streams in a cloudwatch
# log based on interface.
# Great for diagnosing lots of things, and generating verbose logs, but for the broad-stroke analysis I was doing,
# all I really wanted was the basic data. This would have been easier if I had logged to s3, but I did not see a
# way to do that in 2 clicks.

group_name = 'CHANGEME'

keithchambers

---
- name: test if grub configured for noop i/o scheduler
  command: egrep -q 'elevator=noop' /boot/grub2/grub.cfg
  register: grub
  changed_when: no
  failed_when: grub_test.rc == 2

- name: configure grub for noop i/o scheduler
  sudo: yes
  command: grubby --update-kernel=ALL --args=elevator=noop

aparrish

I was abandoned.
I abandoned others.
I abandoned.
I abandoned my sweetheart.
I abandoned a mistress.
I abandoned.
I abandoned children.
I abandoned my business.
I saw myself or friend abandon a ship.
I saw an abbey in ruins.

acolyer

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?

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

elasticdog

#!/usr/bin/env bash

#
# delete-ami
#
# A script to deregister an Amazon Machine Image (AMI) and
# delete its corresponding root device snapshot.
#

##### Functions

regen100

import win32serviceutil

class SampleService(win32serviceutil.ServiceFramework):
    _svc_name_ = 'SampleService'
    _svc_display_name_ = 'Sample Service'
    _svc_description_ = 'This is Sample service.'

    def SvcDoRun(self):
        self.run = True
        while self.run:

tamoyal

# Create your superuser
$ mongo
> use admin
> db.createUser({user:"someadmin",pwd:"secret", roles:[{role:"root",db:"admin"}]})
> exit

# Alias for convenience (optional and at your own risk)
$ echo 'alias mongo="mongo --port 27017 -u someadmin -p secret --authenticationDatabase admin"' >> ~/.bash_profile
$ source ~/.bash_profile