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DSA Course Instance Guide
DS220 – Data Modeling with DataStax Enterprise
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Table of Contents
OBTAINING AN AWS ACCOUNT 3!
STARTING AN INSTANCE 4!
AWS Management Console 4!
Launching an Instance 6!
Choose an Instance Type 7!
Configure Instance Details 7!
Add Storage 7!
Add Tags 7!
Configure Security Group 8!
Required ports 8!
Example security group setting 9!
SSH Key Pair 10!
Finding the IP address of the instance 10!
TERMINATING AN INSTANCE 11!
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Obtaining an AWS Account
You will need your own AWS account, or have one provided from your company or organization in order
start up an instance.
To sign up for an AWS account, go to https://aws.amazon.com and click on Create a Free Account and
follow the instructions there. Although some usage of AWS may be free, DataStax Academy instances do
not run on the AWS Free Tier and will cost money to run.
You may find additional documentation about AWS here: https://aws.amazon.com/documentation/
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Starting an Instance
AWS Management Console
To start an instance, you will first need to sign into the AWS Management Console at
https://aws.amazon.com/console.
After you sign in, make sure to select one of the supported regions, whichever region is closest to you:
US East (N. Virginia) – us-east-1
US East (Ohio) – us-east-2
US West (N. California) – us-west-1
US West (Oregon) – us-west-2
Asia Pacific (Sydney) – ap-southeast-2
EU (Ireland) – eu-west-1
Afterwards click on Services > EC2.
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You should now be in the EC2 Dashboard.
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Launching an Instance
From the EC2 Dashboard, click on the button to Launch Instance. Click on the link Community AMIs.
Using the table below, get the AMI ID for region you are starting the instance in and search for that.
Region
AMI ID
N. Virginia
(us-east-1)
ami-050afe9ec27c545f3
Ohio
(us-east-2)
ami-0d898609c716a923d
N. California
(us-west-1)
ami-0d583ade7fe09191c
Oregon
(us-west-2)
ami-0f2bc68d1e53e80f9
Ireland
(eu-west-1)
ami-061ed968ce26a15ef
Sydney
(ap-southeast-2)
ami-06685e1504e0e4afb
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The search should display only one AMI, which you can then choose with the Select button.
Choose an Instance Type
In Step 2, select an appropriate instance type to launch. The instance will need at least 4 GB of RAM, with
the recommended instance type being t2.medium. Once the instance type is selected, click on the button
Next: Configure Instance Details.
Note: You will be charged to start up an instance and to keep it running. Each instance type has a different
cost. Please make sure you choose an instance type appropriate for the amount you are willing to spend.
The same instance types in different regions may also be priced differently. A list of instance types and their
costs can be found here: https://aws.amazon.com/ec2/pricing/on-demand
Configure Instance Details
In Step 3, you should not need to make any changes here. The course DS220 will need only 1 instance in
order to do all of the exercises. After setting the number of instances, click on Next: Add Storage.
Add Storage
There is nothing that you are required to do in Step 4, so click on Next: Add Tags to proceed if you do not
need to add any additional storage.
Add Tags
In Step 5, tags are not required but can be useful to keep track of the instances that you launch. It is
recommended to add at least one tag to name your instance.
Click on the button Add Tag. Set the Key as Name and the Value to something descriptive, like DS220
Instance. You can add additional tags if desired, but once you’re done click on the button Next: Configure
Security Group.
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Configure Security Group
The security group sets the firewall rules for the instance you are launching. The rules need to be configured
to allow you to interact with the instance, whether it is through SSH, DataStax Studio, OpsCenter, or some
other application. You can also set additional firewall rules if you want to interact with the instance in a way
outside the scope of the exercises.
Required ports
The following table lists all of the possible ports used throughout all of the different DSA course exercises.
Port
Description
22
SSH
80
HTTP
443
HTTPS
4040
Spark Application Web UI
7000
DSE Inter-node Cluster Communication Port
7001
DSE Inter-node Cluster Communication Port (SSL)
7080
Spark Master Web UI
7081
Spark Worker Web UI
7199
JMX
8888
DataStax OpsCenter
8983
Solr Admin Web UI
9042
Native Transport Protocol
9142
Native Transport Protocol (SSL)
9091
DataStax Studio
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Example security group setting
Type
Protocol
Port Range
Source
SSH
TCP
22
0.0.0.0/0
HTTP
TCP
80
0.0.0.0/0
HTTPS
TCP
443
0.0.0.0/0
All ICMP – IPV4
ICMP
0 - 65535
Restrict to security group
Custom TCP Rule
TCP
4040
0.0.0.0/0
Custom TCP Rule
TCP
7000
Restrict to security group
Custom TCP Rule
TCP
7001
Restrict to security group
Custom TCP Rule
TCP
7080
0.0.0.0/0
Custom TCP Rule
TCP
7081
0.0.0.0/0
Custom TCP Rule
TCP
7199
0.0.0.0/0
Custom TCP Rule
TCP
8888
0.0.0.0/0
Custom TCP Rule
TCP
8983
0.0.0.0/0
Custom TCP Rule
TCP
9042
0.0.0.0/0
Custom TCP Rule
TCP
9142
0.0.0.0/0
Custom TCP Rule
TCP
9091
0.0.0.0/0
Once a security group is selected or created, click on the button Review and Launch.
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SSH Key Pair
In Step 7, you can review the instance settings to check if it is configured properly. If everything looks ok,
click on the button Launch. A window will pop up to have you select an existing key pair or to create a new
key pair.
If you already have an existing key pair set up, and have access to the private key file, then you use that key
pair for your instance(s).
If you do not have an existing key pair, select the option Create a new key pair and then enter a name for
the new key pair. Click on the button Download Key Pair and save the private key file to a location that you
can remember; you will need that file to SSH into the instance later.
Warning: You should never select the option Proceed without a key pair, as this will prevent you from
being able to access your instance.
Once the key pair is selected or created, click on the button Launch Instances.
Finding the IP address of the instance
When your instance(s) launches, you will be transferred to the Launch Status page. Click on the link with
the instance ID to check out the instance details.
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Find the value for IPv4 Public IP, which is the IP address of the instance that you will use to SSH, or access
files or applications from the web browser.
If the instance is still starting up, the IP address may not be available yet. Wait a few minutes, and then
refresh the instance details to see if the IP is available.
With the IP address, you can SSH to the instance once the instance has reached the running state.
Terminating an Instance
Instances incur a cost while running. When you are done with the exercises, or wish to stop for a period of
time, we recommend that you terminate the instance.
In the EC2 page, click on the link Instances to go to the list of instances.
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From the list of instances, find the instance you want to terminate. Right-click on that instance, and select
Instance State > Terminate. The instance will change to the state shutting-down and will be completely
terminated once the state is terminated.
Alternatively, you can also select the instance(s) and then click on the button Actions > Instance State >
Terminate.
Note that terminating the instance will delete all data on the instance. If there is anything that you wish to
save, please transfer that data from the instance before terminating.
There is another action called Stop that will also shut down the instance but save the EBS disk and allows
the instance to start again with the same disk. In general, we do not recommend using this action for the
following reasons:
• You are still charged for storage of the EBS disk, although not for the instance itself
• The ephemeral disk is not saved, which is usually where DSE data is stored
• The stopped instance may be assigned a different IP address when you start it again, and
will potentially break your DSE configuration
