Sumanth Chinthagunta xmlking

Kubernetes

Install

Prerequisites

Bash v5+ checkout Upgrading Bash on macOS
bash-completion@2

Install Docker and Kubernetes(k8s)

Realtime Data Visualization with Zeppelin via NiFi WebSocket

This is an example realtime data visualization method using Zeppelin, NiFi and Kafka together.

Since NiFi 1.1.0, it provides components to act as a WebSocket server. This example contains a Zeppelin notebook paragraph which uses %angular interpreter to establish a WebSocket connection with NiFi, and draw a pie chart using D3, refreshed automatically as it received updated data from NiFi in realtime manner.

And also, a NiFi template to run a WebSocket server, which exposes latest data for the pie chart. The data can be passed through a Kafka topic.

Having seen @pirapira's sketch of Bamboo ( https://github.com/pirapira/bamboo/ ), which proposed to add better control about the "smart contract program flow", even across calls, I thought that this should certainly be added to Solidity, and actually, it might even be possible now to a certain degree using inline assembly.

The problem is that with many functions in a contract, it is not always clear which can be called at which stage in the contract's lifetime. Certain smart contracts would be easier to understand if written as follows:

Installing OpenCV 3.1 on Raspbian Jessie

Prerequisites

Keep your system up to date:
- $ sudo apt-get update
- $ sudo apt-get upgrade
- $ sudo reboot
Make sure you've got an internet connection.
Make sure you've got
wget

	{
	"workbench.colorCustomizations": {
	"terminal.foreground": "#839496",
	"terminal.background": "#002833",
	"terminal.ansiBlack": "#003541",
	"terminal.ansiBlue": "#268bd2",
	"terminal.ansiCyan": "#2aa198",
	"terminal.ansiGreen": "#859901",
	"terminal.ansiMagenta": "#d33682",
	"terminal.ansiRed": "#dc322f",

	private static Map<String, String> parameterStore() {
	final AWSSimpleSystemsManagement client = AWSSimpleSystemsManagementClientBuilder.defaultClient();

	GetParametersRequest request = new GetParametersRequest();
	request.withNames("driver", "host", "port", "schema", "username", "password").setWithDecryption(true);

	GetParametersResult result = client.getParameters(request);

	Map<String, String> store = new HashMap<>();

	/**
	* Generate Case class from DataFrame.schema
	*
	* val df:DataFrame = ...
	*
	* val s2cc = new Schema2CaseClass
	* import s2cc.implicit._
	*
	* println(s2cc.schemaToCaseClass(df.schema, "MyClass"))
	*

	package rxgorm.demo

	import grails.artefact.Controller
	import grails.rx.web.Rx
	import grails.validation.ValidationException
	import groovy.transform.CompileStatic

	import static org.springframework.http.HttpStatus.*
	import static grails.rx.web.Rx.*
	import static rx.Observable.*

	import {disableDeprecatedForms, provideForms} from '@angular/forms';

	...

	bootstrap(App, [
	disableDeprecatedForms(),
	provideForms(),
	...
	]);

	@Grab('org.codehaus.groovy.modules.http-builder:http-builder:0.7')
	@Grab('oauth.signpost:signpost-core:1.2.1.2')
	@Grab('oauth.signpost:signpost-commonshttp4:1.2.1.2')

	import groovy.json.JsonOutput
	import groovyx.net.http.RESTClient
	import static groovyx.net.http.ContentType.*
	import org.apache.http.params.HttpConnectionParams
	import com.crossbusiness.nifi.processors.NiFiUtils as util