[Bugs] [Bug 1207547] New: BitRot :- If bitrot is not enabled for given volume then scrubber should not crawl bricks of that volume and should not update vol file for that volume

[bugzilla at redhat.com]

https://bugzilla.redhat.com/show_bug.cgi?id=1207547

            Bug ID: 1207547
           Summary: BitRot :- If bitrot is not enabled for given volume
                    then scrubber should not crawl bricks of that volume
                    and should not update vol file for that volume
           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:
=======================
even though bitrot is not enabled on volume, it updates vol files and scrubber
is crawling brick for that volume.

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

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


Steps to Reproduce:
===================
1. create multiple volumes in cluster and enable bitrot for only one
volume(volume name - rac1)
2. check scrubber log and vol file.
3. vol file is updated for other volumes(bitrot was not enabled for volumes - 
2tier_distrep, tiervol10 ...)


[root at rhs-client37 scrub]# cat scrub-server.vol 
volume 2tier_distrep-client-8
    type protocol/client
    option password d7cf0a0c-ec5a-454c-8ffd-a4903a782ee7
    option username 1036c4b2-6ee3-40fa-8ca1-7d70c77c2f1d
    option transport-type tcp
    option remote-subvolume /pavanbrick2/2tier_distrep/hb2
    option remote-host rhs-client37
    option ping-timeout 42
end-volume

volume 2tier_distrep-client-7
    type protocol/client
    option password d7cf0a0c-ec5a-454c-8ffd-a4903a782ee7
    option username 1036c4b2-6ee3-40fa-8ca1-7d70c77c2f1d
    option transport-type tcp
    option remote-subvolume /pavanbrick2/2tier_distrep/hb1m
    option remote-host rhs-client37
    option ping-timeout 42
end-volume

volume 2tier_distrep-client-1
    type protocol/client
    option password d7cf0a0c-ec5a-454c-8ffd-a4903a782ee7
    option username 1036c4b2-6ee3-40fa-8ca1-7d70c77c2f1d
    option transport-type tcp
    option remote-subvolume /pavanbrick1/2tier_distrep/b1m
    option remote-host rhs-client37
    option ping-timeout 42
end-volume

volume 2tier_distrep-client-2
    type protocol/client
    option password d7cf0a0c-ec5a-454c-8ffd-a4903a782ee7
    option username 1036c4b2-6ee3-40fa-8ca1-7d70c77c2f1d
    option transport-type tcp
    option remote-subvolume /pavanbrick1/2tier_distrep/b2
    option remote-host rhs-client37
    option ping-timeout 42
end-volume

volume tiervol10-client-4
    type protocol/client
    option password 30014655-01c9-4bee-a907-187d1fc68094
    option username ab1c7b6d-0e75-4a8b-8392-86d22d8b51c6
    option transport-type tcp
    option remote-subvolume /pavanbrick2/tiervol10/hb1
    option remote-host rhs-client37
    option ping-timeout 42
end-volume

volume tiervol10-client-1
    type protocol/client
    option password 30014655-01c9-4bee-a907-187d1fc68094
    option username ab1c7b6d-0e75-4a8b-8392-86d22d8b51c6
    option transport-type tcp
    option remote-subvolume /pavanbrick1/tiervol10/b1
    option remote-host rhs-client37
    option ping-timeout 42
end-volume

volume tier_distrep-client-8
    type protocol/client
    option password 7fff38fb-f3c9-4875-8287-7b6896cd7300
    option username f917e26f-80e0-4679-8cd1-cdf97a94e5f3
    option transport-type tcp
    option remote-subvolume /pavanbrick2/tier_distrep/hb2
    option remote-host rhs-client37
    option ping-timeout 42
end-volume

volume tier_distrep-client-7
    type protocol/client
    option password 7fff38fb-f3c9-4875-8287-7b6896cd7300
    option username f917e26f-80e0-4679-8cd1-cdf97a94e5f3
    option transport-type tcp
    option remote-subvolume /pavanbrick2/tier_distrep/hb1m
    option remote-host rhs-client37
    option ping-timeout 42
end-volume

volume tier_distrep-client-1
    type protocol/client
    option password 7fff38fb-f3c9-4875-8287-7b6896cd7300
    option username f917e26f-80e0-4679-8cd1-cdf97a94e5f3
    option transport-type tcp
    option remote-subvolume /pavanbrick1/tier_distrep/b1m
    option remote-host rhs-client37
    option ping-timeout 42
end-volume

volume tier_distrep-client-2
    type protocol/client
    option password 7fff38fb-f3c9-4875-8287-7b6896cd7300
    option username f917e26f-80e0-4679-8cd1-cdf97a94e5f3
    option transport-type tcp
    option remote-subvolume /pavanbrick1/tier_distrep/b2
    option remote-host rhs-client37
    option ping-timeout 42
end-volume

volume rac1-client-1
    type protocol/client
    option password 2d5e8d5a-4495-4432-9fe8-37926e6f8ee7
    option username f4052478-a69a-42dd-bb61-88ea41c353a2
    option transport-type tcp
    option remote-subvolume /pavanbrick7/r1
    option remote-host rhs-client37
    option ping-timeout 42
end-volume

volume bit-rot
    type features/bit-rot
    option scrubber true
    subvolumes 2tier_distrep-client-8 2tier_distrep-client-7
2tier_distrep-client-1 2tier_distrep-client-2 tiervol10-client-4
tiervol10-client-1 tier_distrep-client-8 tier_distrep-client-7
tier_distrep-client-1 tier_distrep-client-2 rac1-client-1
end-volume


Actual results:
===============
even though bitrot is not enabled on volume, it updates vol files and scrubber
is crawling brick for that volume.

Expected results:
================
vol file should be updated on enabling bitrot

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