rarchk

import argparse
import sys
import time

import requests


def ParseConfig(argv):
    """Parse configuration from commmand line."""
    parent_parser = argparse.ArgumentParser(

rarchk

Internet Scale Services Checklist

A checklist for designing and developing internet scale services, inspired by James Hamilton's 2007 paper "On Desgining and Deploying Internet-Scale Services."

• http://mvdirona.com/jrh/talksandpapers/jamesrh_lisa.pdf

Basic tenets

• Does the design expect failures to happen regularly and handle them gracefully?
• Have we kept things as simple as possible?

rarchk

ISTIO

Socket activation vs Signals

Signals provide events in non-local addressable space. They work well with local events and local unix procedures. But not well for cluster. There was a need of distributed signals.

Socket activation is one way, where modern daemon handles events.

Apline vs CentOS images

rarchk

LinkerD Meetup

Host based environment

Client (curl)-------------> Service/Server at http port 80/8080 (192.168.1.1)

Let's talk about communication

• how an http level application will keep track of request and response.
• we know that how it happens at tcp/ip level. We delegate lot of things to them.
• But we want to achieve this functionality at application level. That is the world of microservices
• arp -a

rarchk

Keybase proof

I hereby claim:

• I am rarchk on github.
• I am rarchk (https://keybase.io/rarchk) on keybase.
• I have a public key whose fingerprint is 6EEF C98D 8E30 813C EA47 8CFB F620 AB1B 3672 E16D

To claim this, I am signing this object:

rarchk

# Fedora 25 dependencies 
sudo dnf install automake autoconf  libtool gettext  intltool gperf  libcap-devel libmount-devel  xmlto -y 

# Setting up SystemD
git clone https://github.com/coreos/systemd
cd systemd
git checkout v231
./autogen.sh
./configure
make

rarchk

# Ubunut 16.XX dependencies 
sudo apt-get install automake autoconf  libtool gettext autotools-dev  intltool gperf  libcap-dev libmount-dev  xsltproc  xmlto -y 

# Setting up SystemD
git clone https://github.com/coreos/systemd
cd systemd
git checkout v231
./autogen.sh
./configure
make

rarchk

/* Simple Program to show Maps handeling in go */
package main
import(
	"fmt"
	)

func main() {
	
	/* Creating a map with string key and int value */
	fooMap := make(map[string]int);

rarchk

/* Simple Program to show Array handeling in go */
package main
import(
	"fmt"
	)

func main() {
	
	/* Playing with array */
	var fooArray [3]int;

rarchk

/* Simple Program to show Variable handeling in go */
package main
import(
	"fmt"
	"strconv"
	)

/* Declaring variables */  
var fooString1 string ="ho ho";  
var fooString2, fooString3 = "ram" , "bo";