[HDFS-7833] DataNode reconfiguration does not recalculate valid volumes required, based on configured failed volumes tolerated.

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.6.0
• Fix Version/s: 2.8.0, 3.0.0-alpha1
• Component/s: datanode
• Labels: BB2015-05-TBR
• Target Version/s: 2.8.0
• Hadoop Flags: Reviewed
• Assignee: Lei (Eddy) Xu
• Reporter: Chris Nauroth
• Created: 24/Feb/15 18:47
• Updated: 30/Aug/16 01:39
• Resolved: 07/May/15 04:29

Description

DataNode reconfiguration never recalculates FsDatasetImpl#validVolsRequired. This may cause incorrect behavior of the dfs.datanode.failed.volumes.tolerated property if reconfiguration causes the DataNode to run with a different total number of volumes.