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kpheasey / active_record_extension.rb
Last active Aug 29, 2015
SELECT SUM and SELECT SUM CASE ActiveRecord methods
View active_record_extension.rb
module ActiveRecordExtension
extend ActiveSupport::Concern
module ClassMethods
# Add a SELECT SUM() by CASE to query.
# @param cases [Hash(:attr, :val, :operand), Array(Hash(:attr, :val, :operator))]
# @param sum_field [Symbol, String]
kpheasey /
Last active Oct 1, 2015
Magento Permissions
#Set Magento root directory permissions. Call using the following:
# curl -sL | sudo bash
if [ ! -f ./app/etc/local.xml ]; then
echo "-- ERROR"
echo "-- This doesn't look like a Magento install. Please make sure"
echo "-- that you are running this from the Magento main doc root dir"
kpheasey /
Last active Oct 6, 2015
RailsScript Infinite Scroll
window.App ||= {}
class App.GemgentoCategories extends App.Base
show: =>
new App.ProductGrid()
View rsvp_sxsw_controller.rb
# app/controllers/rsvp_sxsw_controller.rb
class RsvpSxswController < ApplicationController
# GET /rsvp_sxsw
def new
kpheasey / sidekiq.rake
Created Feb 11, 2016
Sidekiq Pro Reliability & Unique Jobs - merge stale private queues and clear unique locks
View sidekiq.rake
namespace :sidekiq do
task merge_stale_queues: :environment do
ec2_private_ips ||= 'us-west-2') { |instance| instance.private_ip_address }
merged = false
puts "EC2 Private IPs: #{ec2_private_ips}"
Sidekiq.redis do |conn|
private_queues = conn.keys('queue:*_*_*')
View models.rb
class Order < ApplicationRecord
belongs_to :customer
def totals_by_customer
Order.all.pluck(:customer) do |customer|
[customer, customer.orders.sum(:total))]
kpheasey / gdb_output.txt
Created Jan 31, 2017
sidekiq process freeze
View gdb_output.txt
Thread 22 (Thread 0x7fa34f0b0700 (LWP 12916)):
#0 0x00007fa34e72afdd in poll () at ../sysdeps/unix/syscall-template.S:81
#1 0x00007fa34eba6fbc in ?? () from /usr/lib/x86_64-linux-gnu/
#2 0x00007fa34e428184 in start_thread (arg=0x7fa34f0b0700) at pthread_create.c:312
#3 0x00007fa34e73837d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111
Thread 21 (Thread 0x7fa346635700 (LWP 12937)):
#0 0x00007fa34e72fc53 in select () at ../sysdeps/unix/syscall-template.S:81
#1 0x00007fa34eba67d0 in rb_thread_fd_select () from /usr/lib/x86_64-linux-gnu/
#2 0x00007fa34ea9edaf in ?? () from /usr/lib/x86_64-linux-gnu/
kpheasey / worker1-process2.txt
Last active Mar 3, 2017
gdb output sidekiq frozen process
View worker1-process2.txt
Thread 22 (Thread 0x7f7e882e2700 (LWP 24112)):
#0 0x00007f7e878f1fdd in poll () at ../sysdeps/unix/syscall-template.S:81
#1 0x00007f7e87dcbd9b in timer_thread_sleep (gvl=0x1ebcf28) at thread_pthread.c:1455
#2 thread_timer (p=0x1ebcf28) at thread_pthread.c:1563
#3 0x00007f7e875ef184 in start_thread (arg=0x7f7e882e2700) at pthread_create.c:312
#4 0x00007f7e878ff37d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111
Thread 21 (Thread 0x7f7e7bbf7700 (LWP 24116)):
#0 0x00007f7e878f6c53 in select () at ../sysdeps/unix/syscall-template.S:81
#1 0x00007f7e87dd3c7b in rb_fd_select (n=<optimized out>, readfds=<optimized out>, writefds=<optimized out>,
kpheasey / calculate#calculate!.rb
Created Mar 3, 2017
worker method that freezes
View calculate#calculate!.rb
def calculate!
self.with_lock do
Octopus.using(:replica) do
self.class::CALCULATION_METHODS.each { |method| send(method) }
self.updated_at = self.calculated_at =
self.is_calculated = true!(touch: false)
kpheasey / delete_sidekiq_batch.rb
Created Apr 1, 2017
Delete All Sidekiq Batches
View delete_sidekiq_batch.rb { |batch| }
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