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--------------------- MODULE VitessDeadMasterRecovery2 ---------------------
EXTENDS Integers, TLC, FiniteSets, Sequences

CONSTANTS NULL

\* Orc state machine
CONSTANTS   ORC_RECV,
            \* Send <disconnect_ssr, replica: 1> messages to replicas
            \*   - Replica should change ssr_master to NULL
            \*   - process_write_storage_request needs to response a NULL value in ssr_master

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const parachuteMachine = Machine({
    "id": "parachute",
    "initial": "fresh",
    "states": {
        "fresh": {
            "on": {
                "transition_to_auth": "auth",
                "transition_to_loan_application": "loan_application",
                "transition_to_active": "active"
            }

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Keybase proof

I hereby claim:

• I am seansu4you87 on github.
• I am seansu4you87 (https://keybase.io/seansu4you87) on keybase.
• I have a public key ASBKrLo6EelPkJ4CplXhQTbpVUrELwmYf0gYTPM2HQUwzgo

To claim this, I am signing this object:

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describe "Replica Reads Resilience" do
  it "can survive replica failure" do
    shard_1_query = User.where(id: 1)
    shard_2_query = User.where(id: 2)

    expect(shard_1_query.count).to eq(1)
    expect(shard_2_query.count).to eq(1)

    task = pod_failure :create, "vttablet-shard1-replica2"
    task.join

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import time
import uuid


class Cart:
    @classmethod
    def get(cls, id):
        return Cart()

    def __init__(self):

seansu4you87

class Parser
end

class ChatEngine
  # Jordan's Black Box

  class State
    attr_reader :raw

    def initialize(raw)

seansu4you87

require "ostruct"
require "securerandom"

module GenServer
  class << self
    def call(pid, method, *args)
      entry = fetch_entry(pid)
      value, state = entry.module.send(method, entry.state, *args)
      entry.state = state
      update_entry(pid, entry)

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{-# LANGUAGE ConstraintKinds #-}
{-# LANGUAGE GeneralizedNewtypeDeriving #-}

module ParserCombinators where

{-

We'll build a set of parser combinators from scratch demonstrating how
they arise as a monad transformer stack. Actually, how they arise as a
choice between two different monad transformer stacks!

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IO

• Input/Output, generally referred to as I/O, is a term that covers the ways that a computer interest with the outside world. Screens, keyboards, files, and networks are all forms of I/O.
• Unix-like systems treat all external devices as files. We can see these under the /dev directory.
• I/O streams are located under /dev/fd. Files there are given a number, known as a file descriptor. There are three default streams:

• Standard input /dev/fd/0
• Standard output /dev/fd/1
• Standard error /dev/fd/2

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Three Variables for GC

1. Throughput: The amount of work done by an application as a ratio of time spent in GC.

‑XX:GCTimeRatio=99

means 99% of time spent on application computation, 1% spent in GC