yorickdowne

Overview

Syncing an Ethereum node is largely reliant on latency and IOPS, I/O Per Second, of the storage. Budget SSDs will struggle to an extent, and some won't be able to sync at all. IOPS can roughly be used as proxy of / predictor for latency. Measuring latency directly is arguably better.

This document aims to snapshot some known good and known bad models.

The drive lists are ordered by interface and then by capacity and alphabetically by vendor name, not by preference. The lists are not exhaustive at all. @mwpastore linked a filterable spreadsheet in comments that has a far greater variety of drives and their characteristics. Filter it by DRAM yes, NAND Type TLC, Form Factor M.2, and desired capacity.

For size, 4TB is a very conservative choice. The smaller 2TB drive should last an Ethereum full node until at least sometime 2026, with the [pre-merge history expiry](https://hackmd.io/@hBXHLw_9Qq2va4pRt

johnnymatthews

I'm sure we've all seen Git repos with a shocking amount of branches. Without a decent naming convention, things can get messy real quick. The idea here is that adding the tags below to the start of your branch makes it easier for folks to quickly figure out what your trying to do.

These are the available types:

Type	Description	Example
feat	Adds a new section or page. New paragraphs to existing documentation are not a feature.	feat/desktop-install
add	Adds a new paragraph, sentence, or image to existing documentation.	add/desktop-install-screenshots
remove	Removes existing paragraphs, sentences, or images from existing documentation	remove/browser-disclaimer
fix	Fixes an existing typo, spelling, grammar, or formatting mistake.	feat/desktop-broken-repo-link

bobuk

Это краткая памятка, которая подходит во время вспышки любого респираторного вирусного заболевания. Я ее пишу не для того, чтобы вы срочно начинали все это делать - никакого повода нет. Но, если вы хотите снизить вероятность получения или распространения вирусов - прочитайте.

Общее поведение

1. Контролируйте свою панику. Никакого повода для паники нет, как говорил человек, падающий с пятого этажа, пролетая мимо четвертого: “пока все нормально”. Напомню, уже на вашей памяти у людей была такая же паника из-за птичьего гриппа и атипичной пневмонии. И никакого зомби-апокалипсиса не произошло. Контролировать панику - значит следить за своими реакциями и стараться принимать решения разумно.
2. Не осуждайте чужую панику. Это не помогает ни вам, ни паникующим - каждый человек волен паниковать или не паниковать перед лицом любой опасности. Кроме того, активное осуждение паники вокруг “эпидемий” порождает и подпитывает многочисленные теории заговора, так что просто не надо.
3. Примите разумные меры предосторожно

mohanpedala

Table of Contents

• set -e, -u, -x, -o pipefail
• set -e
• set -x
• set -u
• set -o pipefail
• Setting IFS
• Original Reference

set -e, -u, -x, -o pipefail

boywijnmaalen

# empty the stash
$ git stash clear

# objects can also be reached through the reflog. 
# while branches record the history of some project, reflogs record the history of these branches. 
# if you amend, reset etc. commits are removed from the branch history 
# but git keeps them around in case you realize that you made a mistake. 
# reflogs are a convenient way to find out what destructive (and other) operations were performed 
# on a branch (or HEAD), making it easier to undo a destructive operation.

ggarcia24

//The global script scope
def ctx = context(scope: scriptScope())

//What things can be on the script scope
contributor(ctx) {
    method(name: 'pipeline', type: 'Object', params: [body: Closure])
    property(name: 'params', type: 'org.jenkinsci.plugins.workflow.cps.ParamsVariable')
    property(name: 'env', type: 'org.jenkinsci.plugins.workflow.cps.EnvActionImpl.Binder')
    property(name: 'currentBuild', type: 'org.jenkinsci.plugins.workflow.cps.RunWrapperBinder')
    property(name: 'scm', type: 'org.jenkinsci.plugins.workflow.multibranch.SCMVar')

timvisee

Falsehoods programmers believe about time

This is a compiled list of falsehoods programmers tend to believe about working with time.

Don't re-invent a date time library yourself. If you think you understand everything about time, you're probably doing it wrong.

Falsehoods

• There are always 24 hours in a day.
• February is always 28 days long.
• Any 24-hour period will always begin and end in the same day (or week, or month).

hoesler

#!/usr/bin/env bash

set -e
set -o pipefail

plugin_repo_url="http://updates.jenkins-ci.org/download/plugins"
plugin_dir="/var/lib/jenkins/plugins"
include_optionals=false

showUsage() {

nikhita

How to update the Go version

System: Debian/Ubuntu/Fedora. Might work for others as well.

1. Uninstall the exisiting version

As mentioned here, to update a go version you will first need to uninstall the original version.

To uninstall, delete the /usr/local/go directory by:

jimblom

#!/bin/sh

# certs.sh

# use this for Yocto/Edison:
LIB=lib
# use this for WRLinux/Gateway
# LIB=lib64
if [ -f /usr/$LIB/jvm/java-8-openjdk/jre/lib/security/cacerts ]; then
  mv /usr/$LIB/jvm/java-8-openjdk/jre/lib/security/cacerts \