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package com.example.jacksondemo.dto;

import java.time.LocalDate;
import java.util.ArrayList;
import java.util.List;

import javax.validation.constraints.NotNull;
import javax.validation.constraints.Size;

public class Message {

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public class DoublyLinkedListImpl {

    private Node head;
    private Node tail;
    private int size;

    public DoublyLinkedListImpl() {
        size = 0;
    }
    /**

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package com.peanutlabs.cron;

import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Date;

import org.springframework.scheduling.support.CronSequenceGenerator;

public class SpringCronTester {

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DevOps Good Reads

• The Roadmap to Becoming a DevOps Dude
• The 15-point DevOps Check List
• What Team Structure is Right for DevOps to Flourish?

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DNS Management

Domain Registrars

• domain registrar is normally the place where you purchased/obtained your domain
• Your registrar could be a business that only does domain registration or even your web host itself.
• whenever a request for a domain is made, the registrar is the first place that gets referenced for information.

Nameservers

• they identify what set of servers any requests should reference in order to obtain a domain’s DNS records.
• Your domain should have it’s nameservers pointed to wherever you are intending to manage your site’s DNS records.

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General Tuning

Worker Processes and Worker Connections

nginx uses a fixed number of workers, each of which handles incoming requests. The general rule of thumb is that you should have one worker for each CPU-core your server contains.

You can count the CPUs available to your system by running:

$ grep ^processor /proc/cpuinfo | wc -l

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Functional Programming Principles in Scala
https://www.coursera.org/learn/progfun1?recoOrder=7&utm_medium=email&utm_source=recommendations&utm_campaign=recommendationsEmail~recs_email_2016_08_07_17%3A57

Data Structures and Performance
https://www.coursera.org/learn/data-structures-optimizing-performance

Cloud Computing Concepts, Part 1
https://www.coursera.org/learn/cloud-computing

Learn to Program: Crafting Quality Code

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Design and Development

• Encapsulation: I Don’t Think it Means What You Think it Means
• Exercises in Kotlin: Part 4 – Control Flows and Return
• Test Estimation Techniques (If You Must…)
• API microservices, the Unix philosophy, and the Richardson Maturity Model
• Microsoft integrates Xamarin into Visual Studio for free, will open source Xamarin runtime
• JUnit 5 – Extension Model
• First Preview of Android N: Developer APIs & Tools
• Smashing the Stack for Fun & Profit : Revived
• Serverless Architectures

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Concurrency, Performance and Scalability

• The cost of async I/O, false assumptions and pride
• Microservices fault and latency tolerance using Netflix Hystrix
• The Image Optimization Technology that Serves Millions of Requests Per Day
• Google still loves disks, should you?
• Fundamentals of Apache Kafka
• Troubleshoot OutOfMemoryError: Unable to Create New Native Thread
• The Heard-Of Model: Computing in Distributed Systems with Benign Failures
• New Compilers Streamline Optimization and Enhance Code Conversion
• 10 Stack Benchmarking DOs and DON’Ts

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Big Data, Visualization, SQL and NoSQL

• Skyline: ETL-as-a-Service
• Writing Dataflow pipelines with scalability in mind
• Data scientists mostly just do arithmetic
• BigQuery integrates with Google Drive
• StreamScope: Continuous reliable distributed processing of big data streams
• Real Time Credit Card Fraud Detection with Apache Spark and Event Streaming
• Implementing Lambda Architecture to Track Real-Time Updates
• Getting the Picture
• Start here: Statistics for A/B testing