Keith Hamm hkhamm

Installing Cassandra on Mac OS X

Homebrew is a great little package manager for OS X. If you haven't already, installing it is pretty easy:

ruby -e "$(curl -fsSL https://raw.github.com/Homebrew/homebrew/go/install)"

This Gist assumes you already followed the instructions to install Cassandra, created a keyspace and table, and added some data.

brew install apache-spark

This guide leads the user through a basic test of a local Spark and Cassandra software stack.

####Table of Contents

##Solving a Spark error: Invalid signature file digest for Manifest main attributes

When using spark-submit to run a jar, you may encounter this error:

Invalid signature file digest for Manifest main attributes

The error occurs when one of the included libraries in the jar's META-INF directory has a bad signature.

#Using the Play Framework

##Installation

Install the Play Framework with Homebrew.

brew install typesafe-activator

	#!/bin/bash
	# Installs the spark-cassandra-connector and support libs

	mkdir /opt/connector
	cd /opt/connector

	rm *.jar

	curl -o ivy-2.3.0.jar \
	'http://search.maven.org/remotecontent?filepath=org/apache/ivy/ivy/2.3.0/ivy-2.3.0.jar'