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  1. Every atomic object has a timeline (TL) of writes:

    • A write is either a store or a read-modify-write (RMW): it read latest write & pushed new one.
    • A write is either tagged Relaxed, Release, or SeqCst.
    • A read observes some write on the timeline:
      • On the same thread, future reads can't go backwards on the timeline.
      • A read is either tagged Relaxed, Acquire, or SeqCst.
      • RMWs can also be tagged Acquire (or AcqRel). If so, the Acquire refers to the "read" portion of "RMW".
  2. Each thread has its own view of the world:

  • Shared write timelines but each thread could be reading at different points.
@janeczku
janeczku / rancher-url-change.md
Last active October 11, 2025 22:00
Change the hostname/URL and certificate of an existing Rancher installation

Steps to change the URL of Rancher installation and switch from a self-signed certificate to a certificate signed by recognized CA.

  1. Change the Rancher server-url setting to the new URL:
    • Navigate to https://<old_rancher_hostname>/g/settings/advanced
    • Edit server-url to https://<new_rancher_hostname>
  2. Clear the private CA certificate for the old certificate
    • Navigate to https://<old_rancher_hostname>/g/settings/advanced
    • Next to cacerts click context menu -> View in API
    • Click Edit
    • Clear the content of the value field
@jagrosh
jagrosh / Growing A Discord Server.md
Last active November 28, 2025 14:11
Tips for creating and growing a new Discord server

This guide is kept up-to-date as Discord and available resources change!
A basic server template is available here

Creating and Growing a Discord Server

logo

Introduction

Hello! I'm jagrosh#4824! I'm writing this guide to try to help new server owners set up and grow their servers, which is a commonly-requested topic. It's very easy to go about this the wrong way, so it's best to be prepared and make smart decisions so that your community can flourish!

Background

@tkrajina
tkrajina / unmarshal_interface.go
Last active June 18, 2025 15:21
Unmarshal JSON to specific interface implementation
package main
import (
"encoding/json"
"fmt"
"reflect"
)
type Something interface{}
@matt448
matt448 / slack_nagios.sh
Last active February 13, 2023 15:38
Script to post Nagios notifications into a Slack channel
#!/bin/bash
# This script is used by Nagios to post alerts into a Slack channel
# using the Incoming WebHooks integration. Create the channel, botname
# and integration first and then add this notification script in your
# Nagios configuration.
#
# All variables that start with NAGIOS_ are provided by Nagios as
# environment variables when an notification is generated.
# A list of the env variables is available here: