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Diffstat (limited to 'docs')
| -rw-r--r-- | docs/ec2-scripts.md | 14 |
1 files changed, 6 insertions, 8 deletions
diff --git a/docs/ec2-scripts.md b/docs/ec2-scripts.md index 530798f2b8..66bf5f1a85 100644 --- a/docs/ec2-scripts.md +++ b/docs/ec2-scripts.md @@ -12,16 +12,14 @@ on the [Amazon Web Services site](http://aws.amazon.com/). `spark-ec2` is designed to manage multiple named clusters. You can launch a new cluster (telling the script its size and giving it a name), -shutdown an existing cluster, or log into a cluster. Each cluster -launches a set of instances, which are tagged with the cluster name, -and placed into EC2 security groups. If you don't specify a security -group, the `spark-ec2` script will create security groups based on the -cluster name you request. For example, a cluster named +shutdown an existing cluster, or log into a cluster. Each cluster is +identified by placing its machines into EC2 security groups whose names +are derived from the name of the cluster. For example, a cluster named `test` will contain a master node in a security group called `test-master`, and a number of slave nodes in a security group called -`test-slaves`. You can also specify a security group prefix to be used -in place of the cluster name. Machines in a cluster can be identified -by looking for the "Name" tag of the instance in the Amazon EC2 Console. +`test-slaves`. The `spark-ec2` script will create these security groups +for you based on the cluster name you request. You can also use them to +identify machines belonging to each cluster in the Amazon EC2 Console. # Before You Start |