Github user shivaram commented on a diff in the pull request:
https://github.com/apache/spark/pull/2260#discussion_r17145258
--- Diff: ec2/spark_ec2.py ---
@@ -348,13 +353,16 @@ def launch_cluster(conn, opts, cluster_name):
print >> stderr, "Could not find AMI " + opts.ami
sys.exit(1)
- # Create block device mapping so that we can add an EBS volume if
asked to
+ # Create block device mapping so that we can add EBS volumes if asked
to.
+ # The first drive is attached as /dev/sds, 2nd as /dev/sdt, ...
/dev/sdz
block_map = BlockDeviceMapping()
if opts.ebs_vol_size > 0:
- device = EBSBlockDeviceType()
- device.size = opts.ebs_vol_size
- device.delete_on_termination = True
- block_map["/dev/sdv"] = device
+ for i in range(opts.ebs_vol_num):
+ device = EBSBlockDeviceType()
+ device.size = opts.ebs_vol_size
+ device.volume_type="gp2"
--- End diff --
http://aws.amazon.com/ebs/details/ says that GP2 implies attaching
SSD-based EBS volumes -- which sounds good. But this is 2x more expensive
compared to standard ?
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