[HDFS-3688] Namenode loses datanode hostname if datanode re-registers

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 0.23.3
• Fix Version/s: 0.23.3, 2.0.2-alpha
• Component/s: datanode
• Target Version/s: 0.23.3
• Hadoop Flags: Reviewed
• Assignee: Jason Darrell Lowe
• Reporter: Jason Darrell Lowe
• Created: 19/Jul/12 20:46
• Updated: 11/Oct/12 17:46
• Resolved: 23/Jul/12 14:51

Description

If a datanode ever re-registers with the namenode (e.g.: namenode restart, temporary network cut, etc.) then the datanode ends up registering with an IP address as the datanode name rather than the hostname.

Issue Links

• relates to: HDFS-3224 Bug in check for DN re-registration with different storage ID