I've just tried it again, with the same results. When you say "it worked" what does the NameNode page list as your "Configured Capacity"? For me, (apparently) regardless of what I specify in the --ebs-vol-size parameter, I get a persistent HDFS capacity of 31.5 GB.
I also used df -h to see what drives were mounted, and I get the same drives regardless of whether I specify the --ebs-vol-size parameter when I execute the script... Can you give me an exact command line that works for you? I will try and execute it verbatim. Thanks, -Ben -- View this message in context: http://apache-spark-user-list.1001560.n3.nabble.com/Trouble-with-spark-ec2-script-ebs-vol-size-tp9619p10208.html Sent from the Apache Spark User List mailing list archive at Nabble.com.