[HADOOP-12191] Bzip2Factory is not thread safe

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.7.1
• Fix Version/s: 2.8.0, 2.7.2, 3.0.0-alpha1
• Component/s: io
• Hadoop Flags: Reviewed
• Assignee: Brahma Reddy Battula
• Reporter: Jason Darrell Lowe
• Created: 06/Jul/15 17:21
• Updated: 06/Jan/17 01:40
• Resolved: 14/Jul/15 10:20

Description

Bzip2Factory.isNativeBzip2Loaded is not protected from multiple threads calling it simultaneously. A thread can return false from this method despite logging the fact that was going to return true due to manipulations of the static boolean from another thread calling the same method.

Issue Links

• relates to: TEZ-3104 Tez fails on Bzip2 intermediate output format on hadoop 2.7.1 and earlier