[Bugs] [Bug 1539358] New: Changes to self-heal logic w.r.t. detecting of split-brains

[bugzilla at redhat.com]

https://bugzilla.redhat.com/show_bug.cgi?id=1539358

            Bug ID: 1539358
           Summary: Changes to self-heal logic w.r.t. detecting of
                    split-brains
           Product: GlusterFS
           Version: mainline
         Component: replicate
          Assignee: bugs at gluster.org
          Reporter: ravishankar at redhat.com
                CC: bugs at gluster.org



Description of problem:
    We currently don't have a roll-back/undoing of post-ops if quorum is not
    met. Though the FOP is still unwound with failure, the xattrs remain on
    the disk.  Due to these partial post-ops and partial heals (healing only
when
    2 bricks are up), we can end up in split-brain purely from the afr
    xattrs point of view i.e each brick is blamed by atleast one of the
    others. These scenarios are hit when there is frequent
    connect/disconnect of the client/shd to the bricks.

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