Matt usmcamp0811

Install Arch Linux on root ZFS filesystem

Pre-installation

Download Arch linux

Create bootable USB (don't add partition number!)

Install Prerequisites on ALL (Worker and Master) Nodes

Let's remove any old versions of Docker if they exist:

sudo yum remove docker \
                  docker-common \
                  docker-selinux \
                  docker-engine

Thinkfan Configuration Notes

This are notes for configuration thinkfan for Fedora. This configuration procedure was followed on a Lenovo Thinkpad X1 Carbon (5th Gen) running Fedora 25.

Non standard (default) configuration was required for this machine as the default sensors are not available. Eg: /proc/acpi/ibm/thermal does not exist for this model.

An annoted configuration file has been included below. However, there is no guarentee that this will work as-is on every machine.

Installation

dnf -y install thinkfan

How to delete duplicate nodes and their relationships in neo4j with cypher based on a property of that node?

The problem is easy to understand. We have 'duplicate' nodes in our database based on the 'id' field on the node properties.

Well this sounds easy enough, until you have to actually do it.

First step

My first attempt was to try and figure out which nodes are actualy duplicate (based on a property on the node). This seems to be pretty straightforward.

Cypher:

	slightly-less-insecure-docker
	wrapper around docker that perhaps makes it slightly less insecure

	example usage:

	DOCKER=/path/to/docker-wrapper
	sudo $DOCKER run -it -v /etc/passwd:/etc/passwd -v /tmp:/tmp ubuntu


	NOTE:

	# 1. First of all of course get Manjaro:
	https://manjaro.org/get-manjaro/

	# I recommend using Etcher to copy the image to your USB:
	https://etcher.io/

	# 2. Before installing make sure:
	# - Secure boot is disabled in BIOS
	# - Your SSD, HDD or NVME drive is set to AHCI instead of RAID
	# - Fastboot should be on Auto or minimal, but this shouldn't matter to much

	#!/usr/bin/env python
	# Implementation of algorithm from http://stackoverflow.com/a/22640362/6029703
	import numpy as np
	import pylab

	def thresholding_algo(y, lag, threshold, influence):
	signals = np.zeros(len(y))
	filteredY = np.array(y)
	avgFilter = [0]*len(y)
	stdFilter = [0]*len(y)

	#!/bin/bash

	# https://www.nginx.com/resources/wiki/start/topics/tutorials/install/

	# Switch to root
	sudo su

	# Add the mainline release
	echo "deb http://nginx.org/packages/mainline/ubuntu/ xenial nginx
	deb-src http://nginx.org/packages/mainline/ubuntu/ xenial nginx" > /etc/apt/sources.list.d/nginx.list

	# Install Arch Linux with full encrypted btrfs subvolume inside luks
	# Hardware: BIOS system, Intel GPU, Nvidia Optimus, Toshiba SSD, Wifi
	# Please adjust for your needs.
	# filename: install-arch-linux-on-btrfs-subvolume-inside-luks.txt
	# The official guide: https://wiki.archlinux.org/index.php/Installation_Guide

	# Download the archiso image from https://www.archlinux.org/download/
	# Copy to a usb-drive
	dd bs=4M if=archlinux.iso of=/dev/sdx status=progress oflag=sync # on linux

	# Adding APOC and the Spatial Library to Official Neo4j Docker Image

	FROM neo4j:latest
	MAINTAINER Clifford Anderson <[email protected]>

	ENV APOC_URI https://github.com/neo4j-contrib/neo4j-apoc-procedures/releases/download/3.0.4.1/apoc-3.0.4.1-all.jar
	ENV GIS_URI https://github.com/neo4j-contrib/m2/blob/master/releases/org/neo4j/neo4j-spatial/0.19-neo4j-3.0.3/neo4j-spatial-0.19-neo4j-3.0.3-server-plugin.jar?raw=true

	RUN mv plugins /plugins \
	&& ln --symbolic /plugins