Evan Prothro eprothro

eprothro / cassandra reconnection and retries.md

Last active December 1, 2017 19:58

rails c

while true do
  r = nil
  duration = Benchmark.ms do
    r = Cassie.session.execute("select count(*) from system.hints")
  end

eprothro / sidekiq_local_processes_stats.rb

Created November 6, 2017 19:55

Prints stats about any locally running sidekiq workers

	# Emit key statistics about locally running Sidekiq processes to a stream.
	#
	require 'sidekiq/api'

	class SidekiqProcessesPrinter
	attr_reader :format

	def initialize(opts={})
	@format = opts.fetch(:format){:plain}
	end

eprothro / sidekiq_shared_queues_info.rb

Created November 6, 2017 19:54

Prints stats about all queues being processed by Sidekiq

	# Emit key statistics about Sidekiq queues to a stream.
	#
	require 'sidekiq/api'

	class SidekiqQueuesPrinter
	attr_reader :format

	def initialize(opts={})
	@format = opts.fetch(:format){:plain}
	end

eprothro / puma_workers_printer.rb

Created November 6, 2017 19:39

ruby script to print puma worker/fork thread utilization info

	require 'puma'
	require 'puma/control_cli'
	require 'json'

	class PumaWorkersPrinter
	attr_reader :format

	def initialize(opts={})
	@format = opts.fetch(:format){ :plain }
	@password = opts.fetch(:password){ '' }

eprothro / kibana_json_input.json

Created October 31, 2017 17:31

	{
	"script": {
	"inline": "doc['system.memory.used.bytes'].value / 1024 / 1024",
	"lang": "painless"
	}
	}

eprothro / temporary_method_override.rb

Last active October 25, 2017 14:44

You can temporarily override (not overwrite) a ruby method for an object by defining a method on the object metaclass.

eprothro / Model Data Loading Patterns.md

Last active September 14, 2017 18:27

Builder Pattern

Pros

Cons

eprothro / ruby temporary overrirde.md

Created September 14, 2017 14:22

class Foo
  
  def bar
    :object_method
  end
end

f = Foo.new
f.bar

eprothro / steel deflection.md

Last active April 28, 2017 18:23

MoE: 29,700,000 psi (mechanical tubing) Ends: Fixed

fraction	decimal
1/128	0.008

eprothro / s3_direct_uploading.rb

Created March 10, 2017 23:28

	module S3DirectUploading
	extend ActiveSupport::Concern

	included do
	S3_UPLOAD_BUCKET = Aws::S3::Resource.new.bucket(ENV['S3_UPLOAD_BUCKET'])

	helper_method :build_s3_direct_post
	end

	protected