[HDFS-3713] Disallow self-failover when auto failover is enabled

• Type: Bug
• Status: Resolved
• Priority: Minor
• Resolution: Duplicate
• Affects Version/s: 2.0.0-alpha
• Component/s: auto-failover
• Target Version/s: 2.0.2-alpha
• Assignee: Unassigned
• Reporter: Eli Collins
• Created: 24/Jul/12 02:52
• Updated: 23/Aug/12 22:39
• Resolved: 23/Aug/12 22:39

Description

When auto failover is enabled, the user can manually failover from a nameservice to itself. When auto failover is disabled, there is a check that prevents failover from a nameservice to itself, we should have the same check for auto failover.

bash-4.1$ hdfs haadmin -failover nn1 nn1
Failover to NameNode at brut01.sf.cloudera.com/172.22.35.149:17020 successful
bash-4.1$ hdfs haadmin -failover nn1 nn1
Failover to NameNode at brut01.sf.cloudera.com/172.22.35.149:17020 successful
bash-4.1$