jeffsteinmetz

# Ansible
# Rolling Upgrade of Elasticsearch
# author: Jeff Steinmetz, @jeffsteinmetz
# tested with Ansible 1.8.2

---
- name: Elasticsearch rolling upgrade
  # Modify hosts to match your inventory group strategy.
  hosts: search
  serial: 1

jeffsteinmetz

// My scala solution (purely functional with no mutable variables)
// to the sample codility problem for finding
// any equilibrium index in an array of ints with up to
// 10 million entries. Description of problem is here:
// http://blog.codility.com/2011/03/solutions-for-task-equi.html
// this is O(N) and uses a scala List (instead of an Array) to maximize the
// speed of .head and .tail operations

import scala.annotation.tailrec

jeffsteinmetz

# tested against elasticsearch 1.4.1
# groovy script does not accuratly count number of elements in list
# if you don't add a mapping to "not_analyze" it is even worse

INDEX_NAME='list-count-test'
NODE='localhost'

curl -XDELETE 'http://'$NODE':9200/'$INDEX_NAME

curl -XPUT 'http://'$NODE':9200/'$INDEX_NAME'/' -d '{

jeffsteinmetz

import scala.util._
import java.security.SecureRandom
import java.security.MessageDigest

/*
 * Generates a Bearer Token with a length of
 * 32 characters (MD5) or 64 characters (SHA-256) according to the
 * specification RFC6750 (http://tools.ietf.org/html/rfc6750)
 *
 * Uniqueness obtained by hashing system time combined with a