rhoml

TL;DR

My team is looking for a site reliability engineer passionate about observability and reliability.

We are the team responsible for Platform and Site Reliability at Apptio, building our Kubernetes platform in AWS (EC2), including a bunch of leading-edge technology services around it to reduce the friction for our development teams.

In a typical day on this role, you will interact with Golang, Jsonnet, Kubernetes, Puppet, GitLab CI, Docker, Confluence, Jira, Slack, and AWS.

Don't worry if you don't know all these names/acronyms; we are not expecting you to, technology moves very fast these days.

rhoml

Next Steps

• Measure time spend on index, flush, refresh, merge, query, etc. (TD - done)
• Take hot threads snapshots under read+write, read-only, write-only (TD - done)
• Adjust refresh time to 10s (from 1s) and see how load changes (TD)
• Measure time of a rolling restart doing disable_flush and disable_recovery (TD)
• Specify routing on query -- make it choose same node for each shard each time (MD)
• GC new generation size (TD)
• Warmers

• measure before/after of client query time with and without warmers (MD)

rhoml

# Logstash Configuration for Mesos Masters and Slaves
input {
  file { 
    path => "/var/log/mesos/mesos-master.[EIFW]*"
    tags => [
      "master"
    ]
  }

  file { 

rhoml

require 'facter'
require 'json'

if Facter.value("ec2_instance_id") != nil
 instance_id = Facter.value("ec2_instance_id")
 region = Facter.value("ec2_placement_availability_zone")[0..-2]
 tags = Facter::Util::Resolution.exec("aws ec2 describe-tags --filters \"name=resource-id,values=#{instance_id}\" --region #{region} | jq '[.Tags[] | {key: .Key, value: .Value}]'")
 
 parsed_tags = JSON.parse(tags)
 parsed_tags.each do |tag|

rhoml

Metric	Lua	Mruby	Metric
Concurrency Level	150	150	transactions
Time taken for tests	7.981	8.269	seconds
Complete requests	3000	3000	requests
Failed requests	0	0	requests
Write errors	0	0
Non-2xx responses	3001	3001	requests
Total transferred	1233411	1206402	bytes
HTML transferred	582194	582194	bytes

rhoml

192.168.2.1
192.168.2.2

rhoml

#! /bin/bash

### BEGIN INIT INFO
# Provides:          unicorn-puppet
# Required-Start:    $local_fs $remote_fs $network $syslog
# Required-Stop:     $local_fs $remote_fs $network $syslog
# Default-Start:     2 3 4 5
# Default-Stop:      0 1 6
# Short-Description: starts the unicorn app server
# Description:       starts unicorn puppet

rhoml

Check out README.md to get started editing Clojure with Emacs.

rhoml

#!/usr/lib/ruby env
# Modified from https://gist.github.com/jpr5/4260656
require 'rubygems'
require 'mechanize'
account = {
    :email    => "example@example.com",
    :password => "123456",
}

agent = Mechanize.new

rhoml

require 'rubygems'
require 'mechanize'

account = {
    :email    => "jpr5@serv.io",
    :password => "balls",
}

agent = Mechanize.new
site = agent.post("https://www.hipchat.com/sign_in", account).uri.host