Joe Huss detain

Lets assume you have a multi-primary cluster and you want to upgrade the nodes without taking them offline.
For this say we have 3 nodes, mysqlcluster1, mysqlcluster2, and mysqlcluster3 and the cluster is currently online.

Move all traffic to mysqlcluster1
Do upgrades on mysqlcluster2 and mysqlcluster3, when they finish the update they will auto rejoin the cluster but stay as R/O
stop mysql on mysqlcluster1, as soon as you do that mysqlcluster2 and mysqlcluster3 will go R/W

You will have to either:
- time switching your db hosts in your configs with when you bring down mysqlcluster1
- use mysqlrouter to automatically switch-over

move all traffic to mysqlcluster2 and mysqlcluster3

Bash Shel Options ( shopt ) Explained

I wasted time WTFM so RTFM

Enable Option	Disable Option	List Enabled Options	Enabled Options Sample Output
`shopt -s <opt>`	`shopt -u <opt>`	`echo $BASHOPTS`	`checkwinsize:cmdhist:complete_fullquote`

This table illustrates the behavior of various shopt options in bash. By toggling these options, you can influence how the shell handles things like filename completion, history management, and error handling.

Option	Description	Disabled	Enabled	Example

MAME

Setting up MAME

Create the ini files with the appropriate command:

mame -createconfig

To create a three.js page that loads a 3D model, you'll need to do the following steps:

Create an HTML file that includes the necessary scripts and libraries.

<!DOCTYPE html>
<html>
  <head>
    <title>Three.js Model Loader</title>
    <meta charset="UTF-8">

To add WASD keyboard movement support to the webgl_loader_fbx.html file from the Three.js GitHub repository, you can make the following changes:

First, add a controls variable to the JavaScript code near the top of the file, to store the instance of the THREE.OrbitControls object:

var camera, controls;

Next, locate the init() function and add the following code after the camera variable is defined, to instantiate the OrbitControls object and set some initial values:

	{ install -d -m 0755 /etc/apt/keyrings
	wget -q https://packages.mozilla.org/apt/repo-signing-key.gpg -O- \| sudo tee /etc/apt/keyrings/packages.mozilla.org.asc > /dev/null
	gpg -n -q --import --import-options import-show /etc/apt/keyrings/packages.mozilla.org.asc \| awk '/pub/{getline; gsub(/^ +\| +$/,""); if($0 == "35BAA0B33E9EB396F59CA838C0BA5CE6DC6315A3") print "\nThe key fingerprint matches ("$0").\n"; else
	print "\nVerification failed: the fingerprint ("$0") does not match the expected one.\n"}'
	echo "deb [signed-by=/etc/apt/keyrings/packages.mozilla.org.asc] https://packages.mozilla.org/apt mozilla main" \| sudo tee -a /etc/apt/sources.list.d/mozilla.list > /dev/null
	snap remove firefox
	echo '
	Package: *
	Pin: origin packages.mozilla.org
	Pin-Priority: 1000

	# Create a Shell COM object
	$shell = New-Object -ComObject Shell.Application
	# Get the Recycling Bin folder
	$recycleBin = $shell.Namespace(0xa)
	# Get the items in the Recycling Bin
	$recycleBinItems = $recycleBin.Items()
	# Sort items by deletion date in descending order
	$sortedItems = $recycleBinItems \| Sort-Object { $_.ExtendedProperty('System.Recycle.DateDeleted') } -Descending
	$potPlayerDir = "C:\Program Files\DAUM\PotPlayer"
	$potPlayerFull = "C:\Program Files\DAUM\PotPlayer\PotPlayerMini64.exe"

	#!/bin/bash
	npm i -g @aivenio/tsc-output-parser;
	echo "Running vue-tsc and parsing output into errors.json";
	npx vue-tsc --strict --noEmit \| npx tsc-output-parser > errors.json;
	echo "remapping errors.json";
	echo '<?php
	$errors = [];
	$jsonOpts = JSON_UNESCAPED_UNICODE \| JSON_UNESCAPED_SLASHES;
	$json = json_decode(file_get_contents("errors.json"),true);
	foreach ($json as $row) {

	$programFilesThemesDir = "$env:PROGRAMFILES\Notepad++\themes\"
	$appDataThemesDir = "$env:APPDATA\Notepad++\themes\"
	# Check if both directories exist
	$programFilesThemesExist = Test-Path -Path $programFilesThemesDir
	$appDataThemesExist = Test-Path -Path $appDataThemesDir
	# Prompt the user to select the installation directory
	if ($programFilesThemesExist -and $appDataThemesExist) {
	$installToProgramFiles = Read-Host "Both 'Program Files' and 'AppData' themes directories exist. Where do you want to install the themes? Enter 'P' for Program Files or 'A' for AppData."
	$installToProgramFiles = $installToProgramFiles.ToUpper()
	} elseif ($programFilesThemesExist) {