[HADOOP-12565] Replace DSA with RSA for SSH key type in SingleCluster.md

• Type: Bug
• Status: Closed
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 2.7.1
• Fix Version/s: 2.8.0, 2.7.3, 3.0.0-alpha1
• Component/s: documentation

Environment

Linux (Gentoo)

• Hadoop Flags: Reviewed
• Assignee: Mingliang Liu
• Reporter: Alexander Veit
• Created: 12/Nov/15 21:31
• Updated: 30/Aug/16 01:21
• Resolved: 03/Dec/15 03:56

Description

http://hadoop.apache.org/docs/current/hadoop-project-dist/hadoop-common/SingleCluster.html

suggests to create a DSA key to ssh to localhost. However DSA is going to be deprecated[1], and ssh to localhost with DSA actually does not work on all systems. I suggest to replace DSA with RSA, ECDSA, or ED25519.

Ref.:
[1] http://comments.gmane.org/gmane.linux.gentoo.devel/96896