[HDFS-7596] NameNode should prune dead storages from storageMap

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.6.0
• Fix Version/s: 2.7.0, 2.6.1, 3.0.0-alpha1
• Component/s: namenode
• Labels: 2.6.1-candidate
• Target Version/s: 2.7.0
• Hadoop Flags: Reviewed
• Assignee: Arpit Agarwal
• Reporter: Arpit Agarwal
• Created: 08/Jan/15 23:15
• Updated: 30/Aug/16 01:40
• Resolved: 10/Jan/15 17:24

Description

The NameNode must be able to prune storages that are no longer reported by the DataNode and that have no blocks associated. These stale storages can skew the balancer behavior.

Detailed discussion on HDFS-7575.

Issue Links

• is related to: HDFS-7575 Upgrade should generate a unique storage ID for each volume