[HDFS-11719] Arrays.fill() wrong index in BlockSender.readChecksum() exception handling

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 3.2.0, 3.1.2
• Component/s: datanode
• Hadoop Flags: Reviewed
• Assignee: Tao Zhang
• Reporter: Tao Zhang
• Created: 28/Apr/17 18:47
• Updated: 18/Sep/18 18:13
• Resolved: 18/Sep/18 17:47

Description

In BlockSender.readChecksum() exception handling part:
Arrays.fill(buf, checksumOffset, checksumLen, (byte) 0);

Actually the paramters should be: Arrays.fill(buf, <startIndex>, <endIndex>, value);
So it should be changed to:
Arrays.fill(buf, checksumOffset, checksumOffset + checksumLen, (byte) 0);