[HBASE-13933] DBE's seekBefore with tags corrupts the tag's offset information thus leading to incorrect results

• Type: Bug
• Status: Closed
• Priority: Critical
• Resolution: Fixed
• Affects Version/s: 1.0.0, 1.0.1, 1.1.0, 0.98.13, 1.0.1.1, 1.1.0.1, 2.0.0
• Fix Version/s: 0.98.14, 1.0.2, 1.2.0, 1.1.1, 1.3.0, 2.0.0
• Component/s: io
• Hadoop Flags: Reviewed
• Assignee: ramkrishna.s.vasudevan
• Reporter: ramkrishna.s.vasudevan
• Created: 18/Jun/15 12:26
• Updated: 18/Dec/15 00:32
• Resolved: 22/Jun/15 05:42

Description

The problem occurs with moveToPrevious() case and incase of tags we copy the previous pointer's tag info to the current because already decoded the tags.
Will check once again before I post other details. I have a test case to reproduce the problem. Found this while working with MultibyteBuffers and verified if this is present in trunk - it is in all branches where we have tags compression (I suppose) will verify