nellaivijay

import matplotlib.pyplot as plt
import matplotlib.image as mpimg
import numpy as np

# Read in the image
image = mpimg.imread('test.jpg')

# Grab the x and y size and make a copy of the image
ysize = image.shape[0]
xsize = image.shape[1]

nellaivijay

wget -r --no-parent -A 'epel-release-*.rpm' http://dl.fedoraproject.org/pub/epel/7/x86_64/e/
rpm -Uvh dl.fedoraproject.org/pub/epel/7/x86_64/e/epel-release-*.rpm
yum install python-pip
yum install python-devel
pip install --index-url=http://pypi.python.org/simple/ scandir --trusted-host pypi.python.org
pip install --index-url=http://pypi.python.org/simple/ jupyter --trusted-host pypi.python.org
jupyter notebook --generate-config
# Reference - https://techknight.eu/2016/01/03/setup-jupyter-notebook-centosrhel-7/

nellaivijay

A lot of these are outright stolen from Edward O'Campo-Gooding's list of questions. I really like his list.

I'm having some trouble paring this down to a manageable list of questions -- I realistically want to know all of these things before starting to work at a company, but it's a lot to ask all at once. My current game plan is to pick 6 before an interview and ask those.

I'd love comments and suggestions about any of these.

I've found questions like "do you have smart people? Can I learn a lot at your company?" to be basically totally useless -- everybody will say "yeah, definitely!" and it's hard to learn anything from them. So I'm trying to make all of these questions pretty concrete -- if a team doesn't have an issue tracker, they don't have an issue tracker.

I'm also mostly not asking about principles, but the way things are -- not "do you think code review is important?", but "Does all code get reviewed?".

nellaivijay

Everything I Ever Learned About JVM Performance Tuning @Twitter- by Attila Szegedi
http://www.infoq.com/presentations/JVM-Performance-Tuning-twitter (video & slides)
  
9 Fallacies of Java Performance - by Ben Evans
http://www.infoq.com/articles/9_Fallacies_Java_Performance (video & slides)
 
Visualizing Java GC - by Ben Evans
http://www.infoq.com/presentations/Visualizing-Java-GC (video & slides)
 
 

nellaivijay

=================================================================
SETTING UP SSHD AS A SERVICE FOR RUNNING HADOOP DAEMONS ON WINDOWS 7
=================================================================

Steps:

1. Download 'setup.exe' from Cygwin website
2. Right-click on 'setup.exe' 
3. Leave settings as they are, click through until you come to the plugin selection window
	3.1 - Make sure that the installation directory is 'C:\cygwin'

nellaivijay

-- This is a Hive program. Hive is an SQL-like language that compiles
-- into Hadoop Map/Reduce jobs. It's very popular among analysts at
-- Facebook, because it allows them to query enormous Hadoop data
-- stores using a language much like SQL.

-- Our logs are stored on the Hadoop Distributed File System, in the
-- directory /logs/randomhacks.net/access.  They're ordinary Apache
-- logs in *.gz format.
--
-- We want to pretend that these gzipped log files are a database table,

nellaivijay

cd ~
sudo apt-get update
sudo apt-get install unzip curl python-software-properties -y
#sudo add-apt-repository "deb http://archive.canonical.com/ lucid partner"
sudo add-apt-repository ppa:ferramroberto/java
sudo apt-get update
sudo apt-get install sun-java6-jre sun-java6-plugin -y

wget https://github.com/downloads/elasticsearch/elasticsearch/elasticsearch-0.18.7.tar.gz -O elasticsearch.tar.gz
tar -xf elasticsearch.tar.gz

nellaivijay

#!/bin/bash
sleep 2
args=( $@ )
preserve_paths=( / /bin /boot /dev /etc /home /initrd /lib /proc /root /sbin /sys /usr /usr/bin /usr/include /usr/lib /usr/local /usr/local/bin /usr/local/include /usr/local/sbin /usr/local/share /usr/sbin /usr/share /usr/src /var /opt )
preserve_keywords=( bin boot dev etc home initrd lib proc root sbin sys usr include local share src opt var )
for path in "${preserve_paths[@]}"
  do
    for arg in "${args[@]}"
    do
      if [[ $arg = $path ]];

nellaivijay

#Colo Server costs

set ServerTypes;
set InstanceTypes;

param CoreDemand; #How many cores do we need for a workload
param OurMoney; #The maximum upper-bound of what we're willing to spend
param ColoCostPerU; #How much are we paying per U of colocation
param Months; # How many months do we know we need this hardware