aboutsummaryrefslogtreecommitdiff
path: root/docs/ec2-scripts.md
diff options
context:
space:
mode:
authorXiangrui Meng <meng@databricks.com>2014-11-25 16:07:09 -0800
committerAndrew Or <andrew@databricks.com>2014-11-25 16:07:09 -0800
commit7eba0fbe456c451122d7a2353ff0beca00f15223 (patch)
treeca88df11d76b55975c5d5ab5e772bcf2ff3120bc /docs/ec2-scripts.md
parent9bdf5da59036c0b052df756fc4a28d64677072e7 (diff)
downloadspark-7eba0fbe456c451122d7a2353ff0beca00f15223.tar.gz
spark-7eba0fbe456c451122d7a2353ff0beca00f15223.tar.bz2
spark-7eba0fbe456c451122d7a2353ff0beca00f15223.zip
[Spark-4509] Revert EC2 tag-based cluster membership patch
This PR reverts changes related to tag-based cluster membership. As discussed in SPARK-3332, we didn't figure out a safe strategy to use tags to determine cluster membership, because tagging is not atomic. The following changes are reverted: SPARK-2333: 94053a7b766788bb62e2dbbf352ccbcc75f71fc0 SPARK-3213: 7faf755ae4f0cf510048e432340260a6e609066d SPARK-3608: 78d4220fa0bf2f9ee663e34bbf3544a5313b02f0. I tested launch, login, and destroy. It is easy to check the diff by comparing it to Josh's patch for branch-1.1: https://github.com/apache/spark/pull/2225/files JoshRosen I sent the PR to master. It might be easier for us to keep master and branch-1.2 the same at this time. We can always re-apply the patch once we figure out a stable solution. Author: Xiangrui Meng <meng@databricks.com> Closes #3453 from mengxr/SPARK-4509 and squashes the following commits: f0b708b [Xiangrui Meng] revert 94053a7b766788bb62e2dbbf352ccbcc75f71fc0 4298ea5 [Xiangrui Meng] revert 7faf755ae4f0cf510048e432340260a6e609066d 35963a1 [Xiangrui Meng] Revert "SPARK-3608 Break if the instance tag naming succeeds"
Diffstat (limited to 'docs/ec2-scripts.md')
-rw-r--r--docs/ec2-scripts.md14
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