[HADOOP-12831] LocalFS/FSOutputSummer NPEs in constructor if bytes per checksum set to 0

• Type: Bug
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 2.8.0
• Fix Version/s: 2.8.0, 3.0.0-alpha1
• Component/s: fs
• Hadoop Flags: Reviewed
• Assignee: Mingliang Liu
• Reporter: Steve Loughran
• Created: 22/Feb/16 16:04
• Updated: 30/Aug/16 01:18
• Resolved: 28/Feb/16 06:05

Description

If you set the number of bytes per checksum to zero,

    conf.setInt(LocalFileSystemConfigKeys.LOCAL_FS_BYTES_PER_CHECKSUM_KEY, 0)

then create a "file://" instance, you get to see a stack trace