iahmad-khan

// load error messages from a log into memory
// then interactively search for various patterns

// base RDD
val lines = sc.textFile("log.txt")

// transformed RDDs
val errors = lines.filter(_.startsWith("ERROR"))
val messages = errors.map(_.split("\t")).map(r => r(1))
messages.cache()

iahmad-khan

cat ~/credentials/user
source ~/credentials/user
keystone discover
keystone catalog
keystone endpoint-get --service volume
keystone token-get --wrap 50

nova list
nova flavor-list
nova boot --image cirros-qcow2 --flavor 1 MyFirstInstance

iahmad-khan

# Some notes from installing VirtualBox on CentOS 7. 
# These exact steps haven't been tested, as I ran them in a different order when manually installing.

# Install dependencies
yum -y install gcc make patch  dkms qt libgomp
yum -y install kernel-headers kernel-devel fontforge binutils glibc-headers glibc-devel

# Install VirtualBox
cd /etc/yum.repos.d
wget http://download.virtualbox.org/virtualbox/rpm/rhel/virtualbox.repo

iahmad-khan

# Systemd unit file for tomcat
[Unit]
Description=Apache Tomcat Web Application Container
After=syslog.target network.target

[Service]
Type=forking

Environment=JAVA_HOME=/usr/lib/jvm/jre
Environment=CATALINA_PID=/opt/tomcat/temp/tomcat.pid

iahmad-khan

# example python script

# pip install requests before using requests
import requests
import json

HOSTNAME="your.elasticsearch.host.com" # hostname
PORT=9200 # port number
NODE_NAME="node001" # node to reroute to 

iahmad-khan

# example python script

# pip install requests before using requests
import requests
import json

HOSTNAME="your.elasticsearch.host.com" # hostname
PORT=9200 # port number
NODE_NAME="node001" # node to reroute to 

iahmad-khan

#/bin/bash

if [ $# -lt 3 ]
then
  echo "Usage: reindex.sh source_url target_url index [query]"
  echo "Example: reindex.sh http://source.com:9200 http://target.com:9200 products_v1 '{\"query\":{\"range\":{\"mod_date\":{\"from\":\"2015-12-03T20:00:00\"}}}}'"
  exit 1
fi

SOURCE_URL=$1