Rounak Datta rounakdatta

Description

[Server] GStreamer ---> HTML [Client]

Require

gstreamer-1.x
Browser which supports video tag of HTML5

debian

Amazon Web Services (AWS) & Google Cloud Platform (GCP) explained in simple English

This guide is only representative from my point of view and it may not be accurate and you should go on the official AWS & GCP websites for accurate and detailed information. It's initially inspired by AWS in simple English and GCP for AWS professionals. The idea is to compare both services, give simple one-line explanation and examples with other software that might have similiar capabilities. Comment below for suggestions.

Category	Service	AWS	GCP	Description	It's like
Compute	IaaS	Amazon Elastic Compute Cloud (EC2)	Google Compute Engine	Type-1 virtual servers	VMware ESXi, Citrix XenServer
	PaaS	AWS Elastic Beanstalk	Google App Engine	Running your app on a platform

Hive is an open-source data warehousing solution built on top of Hadoop. It supports an SQL-like query language called HiveQL. These queries are compiled into MapReduce jobs that are executed on Hadoop. While Hive uses Hadoop for execution of queries, it reduces the effort that goes into writing and maintaining MapReduce jobs.

Data Model

Hive supports database concepts like tables, columns, rows and partitions. Both primitive (integer, float, string) and complex data-types(map, list, struct) are supported. Moreover, these types can be composed to support structures of arbitrary complexity. The tables are serialized/deserialized using default serializers/deserializer. Any new data format and type can be supported by implementing SerDe and ObjectInspector java interface.

Query Language

Hive query language (HiveQL) consists of a subset of SQL along with some extensions. The language is very SQL-like and supports features like subqueries, joins, car

System Design Cheatsheet

Picking the right architecture = Picking the right battles + Managing trade-offs

Basic Steps

Clarify and agree on the scope of the system

User cases (description of sequences of events that, taken together, lead to a system doing something useful)
- Who is going to use it?
- How are they going to use it?

Common Options

-#, --progress-bar Make curl display a simple progress bar instead of the more informational standard meter.

-b, --cookie <name=data> Supply cookie with request. If no =, then specifies the cookie file to use (see -c).

-c, --cookie-jar <file name> File to save response cookies to.

tmux cheat sheet

(C-x means ctrl+x, M-x means alt+x)

Prefix key

The default prefix is C-b. If you (or your muscle memory) prefer C-a, you need to add this to ~/.tmux.conf:

remap prefix to Control + a

things I don't know

I took this list from What CS majors should know.

I think it is fun to list things I don't know so I did it =D. I actually found it to be a cool exercise -- maybe I should do a fun graphics project and learn about Open GL!

i wrote this because, while i think the things on this list are potentially worth knowing, and I actually think it's an awesome list of project ideas as well as good food for thought for people developing CS curricula (many of the things I don't know are great exercises!) -- I thought it was really weird to say that every CS student should know all of them. I have a CS degree and I learned very few of the things I do know inside my degree.

I classify "do know" as anything that I have a reasonable grasp of or at least some basic experience with -- the kind of experience I'd expect a CS student to be able to get. If I say I don't know something, it means either I know pretty much nothing about it (for "gr

	package com.example.basic

	import java.util.Properties
	import org.apache.kafka.clients.producer.{Callback, RecordMetadata, ProducerRecord, KafkaProducer}

	import scala.concurrent.Promise


	case class BasicProducer(topic: String, brokerList:String, sync: Boolean) {
	val kafkaProps = new Properties()

	import java.util

	import org.apache.kafka.clients.consumer.KafkaConsumer

	import scala.collection.JavaConverters._

	object ConsumerExample extends App {

	import java.util.Properties

	// source: http://stackoverflow.com/a/11058858
	function ab2str(buf) {
	return String.fromCharCode.apply(null, new Uint16Array(buf));
	}