[HADOOP-12958] PhantomReference for filesystem statistics can trigger OOM

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.7.3, 2.6.4
• Fix Version/s: 2.8.0, 2.7.3, 2.6.5, 3.0.0-alpha1
• Hadoop Flags: Reviewed
• Assignee: Sangjin Lee
• Reporter: Jason Darrell Lowe
• Created: 24/Mar/16 00:14
• Updated: 06/Jan/17 01:02
• Resolved: 25/Mar/16 23:06

Description

I saw an OOM that appears to have been caused by the phantom references introduced for file system statistics management. I'll post details in a followup comment.

Issue Links

• is broken by: HADOOP-12107 long running apps may have a huge number of StatisticsData instances under FileSystem