All Spark compute nodes are accessible from the master node using thespark user's SSH key. This key is shared across all Spark installations, meaning customers cannot be given SSH access to the spark user (e.g. to manage their data directories) because they will be able to access any user's compute nodes.
All Spark compute nodes are accessible from the master node using the
spark
user's SSH key. This key is shared across all Spark installations, meaning customers cannot be given SSH access to thespark
user (e.g. to manage their data directories) because they will be able to access any user's compute nodes.