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The last [gist] (gist.github.com/karanth/8736340) was about installing the HortonWorks sandbox and getting to know the entry points into the sandbox. A next step for most people who are starting to learn Hadoop is to either run the example MapReduce (MR) jobs that come with the Hadoop distribution, or to write a simple MR job like word count.

The HUE web page at http://localhost:8888 does not allow for execution of Hadoop MR jobs from java programs, without the use of higher level abstractions like HIVE (SQL-like) or Pig. Hadoop MR jobs can be run by logging into the sandbox (recall Alt + F5 or ssh) and executing jobs on the sandbox's terminal.

####Running Hadoop Example Programs

The sandbox has the hadoop MR examples in the directory /usr/lib/hadoop-mapreduce. The file name is of the form, hadoop-mapreduce-examples-*.jar. * (asterisk) is the wildcard for the version details of the jar file.

To run an example, the pi estimation program in this case, the command is,

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#! /bin/bash

# ECHO COMMAND
# echo Hello World!

# VARIABLES
# Uppercase by convention
# Letters, numbers, underscores
NAME="Bob"
# echo "My name is $NAME"

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Azure Load Balancer 🔄

Azure Load Balancer is a Layer-4 (Transport Layer) load balancing service that distributes incoming network traffic (such as HTTP, HTTPS, TCP, and UDP) across multiple virtual machines (VMs) or instances to ensure proper resource utilization and fault tolerance. It helps you build highly available applications by providing high availability, scalability, and performance.

🌐 Traffic Distribution: It uses various load-balancing algorithms like round-robin, least-connections, and more to distribute traffic evenly among backend resources.

🔁 Frontend and Backend Configuration: The frontend defines the entry point (IP address and port) for incoming traffic. The backend defines the target resources (VMs, VMSS, or IP addresses) that will receive the traffic.

🏢 Availability Sets and Availability Zones: You can use Azure Availability Sets or Availability Zones in conjunction with Azure Load Balancer to distribute traffic across multiple fault domains for improved high availabili

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Taken from:  https://hackerlists.com/hacking-sites/

22 Hacking Sites, CTFs and Wargames To Practice Your Hacking Skills
InfoSec skills are in such high demand right now. As the world continues to turn everything into an app and connect even the most basic devices to the internet, the demand is only going to grow, so it’s no surprise everyone wants to learn hacking these days.


However, almost every day I come across a forum post where someone is asking where they should begin to learn hacking or how to practice hacking. I’ve compiled this list of some of the best hacking sites to hopefully be a valuable resource for those wondering how they can build and practice their hacking skill set. I hope you find this list helpful, and if you know of any other quality hacking sites, please let me know in the comments, so I can add them to the list.

1. CTF365 https://ctf365.com/

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trigger:
  branches:
    include:
      - master
      - releases/*
      - feature/azure-devops
  paths:
    exclude:
      - README.md

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package com.dailycodebuffer.streamapi;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;

import java.util.*;
import java.util.stream.Collectors;
import java.util.stream.Stream;

@SpringBootApplication

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mongodb aggregates using MongoRepository in Java spring boot

---

Some prerequisites and assumptions

Use the following dependencies within your pom.xml:

• spring-boot-starter-parent 1.5.7.RELEASE
• spring-boot-starter-data-mongodb

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This is my Java note from caveofprogramming.com by John. 
This is not a program.
All credit goes to John. 
/*
|----------------------------------------
|Ten tips to make you a better programmer.
|----------------------------------------
*/ 
10. Learn to touch type. 
9. Name variables and subroutines descriptively

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The mongo airbnb sample database

Import it into your local mongo with:

mongoimport -h localhost:27017 --db sample_airbnb --collection listingsAndReviews --file listingsAndReviews.json

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