[Bugs] [Bug 1207624] New: BitRot :- scrubber is not detecting rotten data and not marking file as 'BAD' file

[bugzilla at redhat.com]

https://bugzilla.redhat.com/show_bug.cgi?id=1207624

            Bug ID: 1207624
           Summary: BitRot :- scrubber is not detecting rotten data and
                    not marking file as 'BAD' file
           Product: GlusterFS
           Version: mainline
         Component: bitrot
          Severity: high
          Assignee: bugs at gluster.org
          Reporter: racpatel at redhat.com
                CC: bugs at gluster.org
      Docs Contact: bugs at gluster.org



Description of problem:
=======================
once file is signed with proper hash value by bitd, modify file in backend but
scrubber was unable to detect changes and didn't mark file as 'BAD'

Version-Release number of selected component (if applicable):
=============================================================
0.803.gitf64666f.el6.x86_64

How reproducible:
=================
always


Steps to Reproduce:
===================
1. create and mount gluster volume. 
2. Enable bitrot and create files.
3. Once files have been signed go to bricks and modify file from backend.


Actual results:
===============
scrubber is failed to detect checksum mismatch. no xattr set and log doesnt
have any error reported for the same

Expected results:
================
Scrubber should mark file as 'BAD' in case of checksum mismtach

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