geekrobo zerohhy

ZeroMQ vs Redis

This document is research for the selection of a communication platform for robot-net.

Goal

The purpose of this component is to enable rapid, reliable, and elegant communication between the various nodes of the network, including controllers, sensors, and actuators (robot drivers). It will act as the core of robot-net to create a standardized infrastructure for robot control.

Requirements:

Set up a new os x laptop

Steps to setup a new OS X laptop with a data science & computational biology development environment.

Last updated: 7 Jan 2017 macOS: Yosemite => Sierra

Sure you could try to do this from dotfiles, but historically something has broken and required manual input anyway. So, inspired by the pragmatism of paul irish bash setup script and a few other gists written in markdown like this, I rolled my own.

Some design considerations:

Hello Minikube Mac Install

install brew

$ /usr/bin/ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"
==> This script will install:
/usr/local/bin/brew
/usr/local/share/doc/homebrew
/usr/local/share/man/man1/brew.1
/usr/local/share/zsh/site-functions/_brew

	https://aisgit.informatik.uni-freiburg.de/zhang/caffe_future/blob/ais-master/docs/installation.md

	[root@localhost build]# yum install protobuf-devel leveldb-devel snappy-devel opencv-devel boost-devel hdf5-devel
	Loaded plugins: axelget, fastestmirror, langpacks, priorities, refresh-packagekit
	No metadata available for base
	No metadata available for epel
	No metadata available for epel-testing
	No metadata available for extras
	No metadata available for nux-dextop
	No metadata available for rhscl-python33-epel-7-x86_64

	#!/bin/bash

	# cool_gpu2.sh This script will enable or disable fixed gpu fan speed
	#
	# Description: A script to control GPU fan speed on headless (non-X) linux nodes

	# Original Script by Axel Kohlmeyer <[email protected]>
	# https://sites.google.com/site/akohlmey/random-hacks/nvidia-gpu-coolness
	#
	# Modified for newer drivers and removed old work-arounds

	'''
	I started one server:

	$ python aiohttp_rq.py server

	And three workers in different terminals:

	$ python aiohttp_rq.py worker

	And I got next results with ab:

	#deb cdrom:[Ubuntu 16.04.2 LTS _Xenial Xerus_ - Release amd64 (20170215.2)]/ xenial main restricted

	# See http://help.ubuntu.com/community/UpgradeNotes for how to upgrade to
	# newer versions of the distribution.
	deb http://us.archive.ubuntu.com/ubuntu/ xenial main restricted
	# deb-src http://us.archive.ubuntu.com/ubuntu/ xenial main restricted

	## Major bug fix updates produced after the final release of the
	## distribution.
	deb http://us.archive.ubuntu.com/ubuntu/ xenial-updates main restricted

	# DATABASE
	DATABASE_DATA_DIR=./docker/postgres/data
	DATABASE_LOG_DIR=./docker/postgres/logs
	DATABASE_HOST=db
	DATABASE_PORT=5432
	DATABASE_NAME=mydbname
	DATABASE_USER=myusername
	DATABASE_PASSWORD=mypassword

	# phpPgAdmin

	After automatically updating Postgres to 10.0 via Homebrew, the pg_ctl start command didn't work.
	The error was "The data directory was initialized by PostgreSQL version 9.6, which is not compatible with this version 10.0."

	Database files have to be updated before starting the server, here are the steps that had to be followed:

	# need to have both 9.6.x and latest 10.0 installed, and keep 10.0 as default
	brew unlink postgresql
	brew install [email protected]
	brew unlink [email protected]
	brew link postgresql