Di Xu dixudx

Default

Powerlevel10k

Fernet token creation

Time per request: 62.748 [ms] (mean)

Requests per second: 74.76 [#/sec] (mean)

Fernet token validation

Time per request: 93.782 [ms] (mean)

Configure Git to use a proxy

In Brief

You may need to configure a proxy server if you're having trouble cloning or fetching from a remote repository or getting an error like unable to access '...' Couldn't resolve host '...'.

Consider something like:

Most downloaded projects

SELECT
  file.project,
  COUNT(*) as total_downloads,
FROM
  TABLE_DATE_RANGE(
    [the-psf:pypi.downloads],
    TIMESTAMP("20160114"),

The Goal

Set up Kubernetes on 3 Debian Jessie virtual machines: One master. Two nodes. Additionally do this without any "magic" so that what is required to be running to make everything work is plain and obvious.

We will be using flannel for the inter-machine networking layer. Mainly because it is useful and it seems to be pretty popular.

	# Download and Install the Latest Updates for the OS
	apt-get update && apt-get upgrade -y

	# Set the Server Timezone to CST
	echo "America/Chicago" > /etc/timezone
	dpkg-reconfigure -f noninteractive tzdata

	# Enable Ubuntu Firewall and allow SSH & MySQL Ports
	ufw enable
	ufw allow 22

	import "bytes"

	func StreamToByte(stream io.Reader) []byte {
	buf := new(bytes.Buffer)
	buf.ReadFrom(stream)
	return buf.Bytes()
	}

	func StreamToString(stream io.Reader) string {
	buf := new(bytes.Buffer)

	Producer

	Setup
	bin/kafka-topics.sh --zookeeper esv4-hcl197.grid.linkedin.com:2181 --create --topic test-rep-one --partitions 6 --replication-factor 1
	bin/kafka-topics.sh --zookeeper esv4-hcl197.grid.linkedin.com:2181 --create --topic test --partitions 6 --replication-factor 3

	Single thread, no replication

	bin/kafka-run-class.sh org.apache.kafka.clients.tools.ProducerPerformance test7 50000000 100 -1 acks=1 bootstrap.servers=esv4-hcl198.grid.linkedin.com:9092 buffer.memory=67108864 batch.size=8196

	package main

	import (
	"crypto/tls"
	"crypto/x509"
	"flag"
	"io/ioutil"
	"log"
	"net/http"
	)

	#!/usr/bin/env bash
	# Ubuntu Server or VM Cleaner. Safe by default; aggressive when asked.
	# Example safe: sudo ./clean.sh
	# Example aggressive: sudo JOURNAL_DAYS=3 AGGRESSIVE=1 ./clean.sh
	# Enable Docker image prune (images only): sudo ./clean.sh --docker-images
	# Tested on Ubuntu 20.04, 22.04, 24.04 (server/VM images).

	set -Eeuo pipefail
	trap 'rc=$?; echo "Error on line $LINENO: $BASH_COMMAND (exit $rc)"; exit $rc' ERR
	IFS=$'\n\t'