[HDFS-8051] FsVolumeList#addVolume should release volume reference if not put it into BlockScanner.

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.6.0
• Fix Version/s: 2.7.0
• Component/s: datanode
• Target Version/s: 2.7.0
• Assignee: Lei (Eddy) Xu
• Reporter: Lei (Eddy) Xu
• Created: 02/Apr/15 19:24
• Updated: 10/Apr/15 20:29
• Resolved: 03/Apr/15 23:57

Description

FsVolumeList#addVolume() passes FsVolumeReference to blockScanner:

 if (blockScanner != null) {
      blockScanner.addVolumeScanner(ref);
}

However, if blockScanner == null, the FsVolumeReference will not be released.