Re: [Possibile SPAM] Re: Problem with Gluster 3.12.4, VM and sharding

"Ing. Luca Lazzeroni - Trend Servizi Srl" <luca@xxxxxxxx> · Fri, 19 Jan 2018 08:36:51 +0100



    Nope. If I enable write-behind the corruption happens every time.

    
    Il 19/01/2018 08:26, Ing. Luca
      Lazzeroni - Trend Servizi Srl ha scritto:

    
      After other test (I'm trying to convice myself about gluster
        reliability :-) I've found that with 

      
      performance.write-behind off
      the vm works without problem. Now I'll try with write-behind on
        and flush-behind on too.
      

      Il 18/01/2018 13:30, Krutika
        Dhananjay ha scritto:

      
          Thanks for that input. Adding Niels since the issue is
            reproducible only with libgfapi.

            
          -Krutika

        
          On Thu, Jan 18, 2018 at 1:39 PM, Ing.
            Luca Lazzeroni - Trend Servizi Srl <luca@xxxxxxxx>
            wrote:

            
                Another update.
                I've setup a replica 3 volume without sharding and
                  tried to install a VM on a qcow2 volume on that
                  device; however the result is the same and the vm
                  image has been corrupted, exactly at the same point.
                Here's the volume info of the create volume:
                Volume Name: gvtest

                  Type: Replicate

                  Volume ID: e2ddf694-ba46-4bc7-bc9c-e30803374e9d

                    Status: Started

                    Snapshot Count: 0

                   Number of Bricks: 1 x 3 = 3

                  Transport-type: tcp

                  Bricks:

                  Brick1: gluster1:/bricks/brick1/gvtest

                  Brick2: gluster2:/bricks/brick1/gvtest

                  Brick3: gluster3:/bricks/brick1/gvtest

                  Options Reconfigured:

                  user.cifs: off

                  features.shard: off

                    cluster.shd-wait-qlength: 10000

                    cluster.shd-max-threads: 8

                    cluster.locking-scheme: granular

                    cluster.data-self-heal-algorithm: full

                    cluster.server-quorum-type: server

                    cluster.quorum-type: auto

                    cluster.eager-lock: enable

                    network.remote-dio: enable

                    performance.low-prio-threads: 32

                    performance.io-cache: off

                    performance.read-ahead: off

                    performance.quick-read: off

                    transport.address-family: inet

                   nfs.disable: on

                  performance.client-io-threads: off

                  
                    Il
                      17/01/2018 14:51, Ing. Luca Lazzeroni - Trend
                      Servizi Srl ha scritto:

                    
                      Hi,
                      after our IRC chat I've rebuilt a virtual
                        machine with FUSE based virtual disk. Everything
                        worked flawlessly.
                      Now I'm sending you the output of the requested
                        getfattr command on the disk image:
                      # file: TestFUSE-vda.qcow2

                        trusted.afr.dirty=0x000000000000000000000000

                        trusted.gfid=0x40ffafbbe987445692bb31295fa40105

                        trusted.gfid2path.dc9dde61f0b77eab=0x31326533323631662d373839332d346262302d383738632d3966623765306232336263652f54657374465553452d7664612e71636f7732

                        trusted.glusterfs.shard.block-size=0x0000000004000000

                        trusted.glusterfs.shard.file-size=0x00000000c15300000000000000000000000000000060be900000000000000000

                      
                      Hope this helps.
                      

                      Il
                        17/01/2018 11:37, Ing. Luca Lazzeroni - Trend
                        Servizi Srl ha scritto:

                      
                        I actually use FUSE and it works. If i try to
                          use "libgfapi" direct interface to gluster in
                          qemu-kvm, the problem appears.
                        

                        Il
                          17/01/2018 11:35, Krutika Dhananjay ha
                          scritto:

                        
                            Really? Then which protocol exactly do
                              you see this issue with? libgfapi? NFS? 

                              
                            -Krutika

                          
                            On Wed, Jan 17,
                              2018 at 3:59 PM, Ing. Luca Lazzeroni -
                              Trend Servizi Srl <luca@xxxxxxxx>
                              wrote:

                              
                                  Of course. Here's the full log.
                                    Please, note that in FUSE mode
                                    everything works apparently without
                                    problems. I've installed 4 vm and
                                    updated them without problems. 

                                  
                                      Il
                                        17/01/2018 11:00, Krutika
                                        Dhananjay ha scritto:

                                      
                                            On
                                              Tue, Jan 16, 2018 at 10:47
                                              PM, Ing. Luca Lazzeroni -
                                              Trend Servizi Srl <luca@xxxxxxxx>
                                              wrote:

                                              
                                                  I've made the test
                                                    with raw image
                                                    format (preallocated
                                                    too) and the
                                                    corruption problem
                                                    is still there (but
                                                    without errors in
                                                    bricks' log file).
                                                  What does the
                                                    "link" error in
                                                    bricks log files
                                                    means ? 

                                                  
                                                  I've seen the
                                                    source code looking
                                                    for the lines where
                                                    it happens and it
                                                    seems a warning (it
                                                    doesn't imply a
                                                    failure).
                                                
                                              
                                              Indeed, it only
                                                represents a transient
                                                state when the shards
                                                are created for the
                                                first time and does not
                                                indicate a failure.
                                              Could you also get
                                                the logs of the gluster
                                                fuse mount process? It
                                                should be under
                                                /var/log/glusterfs of
                                                your client machine with
                                                the filename as a
                                                hyphenated mount point
                                                path.
                                              

                                              For example, if your
                                                volume was mounted at
                                                /mnt/glusterfs, then
                                                your log file would be
                                                named mnt-glusterfs.log.
                                              

                                              -Krutika

                                              
                                                      Il
                                                        16/01/2018
                                                        17:39, Ing. Luca
                                                        Lazzeroni -
                                                        Trend Servizi
                                                        Srl ha scritto:

                                                      
                                                        An update:
                                                        I've tried,
                                                          for my tests,
                                                          to create the
                                                          vm volume as
                                                        qemu-img
                                                          create -f
                                                          qcow2 -o
                                                          preallocation=full
gluster://gluster1/Test/Test-vda.img 20G
                                                        et voila !
                                                        No errors at
                                                          all, neither
                                                          in bricks' log
                                                          file (the
                                                          "link failed"
                                                          message
                                                          disappeared),
                                                          neither in VM
                                                          (no corruption
                                                          and installed
                                                          succesfully).
                                                        I'll do
                                                          another test
                                                          with a fully
                                                          preallocated
                                                          raw image.
                                                        

                                                        Il
                                                          16/01/2018
                                                          16:31, Ing.
                                                          Luca Lazzeroni
                                                          - Trend
                                                          Servizi Srl ha
                                                          scritto:

                                                        
                                                          I've just
                                                          done all the
                                                          steps to
                                                          reproduce the
                                                          problem. 

                                                          
                                                          Tha VM
                                                          volume has
                                                          been created
                                                          via "qemu-img
                                                          create -f
                                                          qcow2
                                                          Test-vda2.qcow2
                                                          20G" on the
                                                          gluster volume
                                                          mounted via
                                                          FUSE. I've
                                                          tried also to
                                                          create the
                                                          volume with
                                                          preallocated
                                                          metadata,
                                                          which moves
                                                          the problem a
                                                          bit far away
                                                          (in time). The
                                                          volume is a
                                                          replice 3
                                                          arbiter 1
                                                          volume hosted
                                                          on XFS bricks.

                                                          
                                                          Here are
                                                          the
                                                          informations:
                                                          [root@ovh-ov1
                                                          bricks]#
                                                          gluster volume
                                                          info gv2a2

                                                           
                                                          Volume Name:
                                                          gv2a2

                                                          Type:
                                                          Replicate

                                                          Volume ID:
                                                          83c84774-2068-4bfc-b0b9-3e6b93705b9f

                                                          Status:
                                                          Started

                                                          Snapshot
                                                          Count: 0

                                                          Number of
                                                          Bricks: 1 x (2
                                                          + 1) = 3

Transport-type: tcp

                                                          Bricks:

                                                          Brick1:
                                                          gluster1:/bricks/brick2/gv2a2

                                                          Brick2:
                                                          gluster3:/bricks/brick3/gv2a2

                                                          Brick3:
                                                          gluster2:/bricks/arbiter_brick_gv2a2/gv2a2
                                                          (arbiter)

                                                          Options
                                                          Reconfigured:

storage.owner-gid: 107

storage.owner-uid: 107

                                                          user.cifs: off

features.shard: on

cluster.shd-wait-qlength: 10000

cluster.shd-max-threads: 8

cluster.locking-scheme: granular

cluster.data-self-heal-algorithm: full

cluster.server-quorum-type: server

cluster.quorum-type: auto

cluster.eager-lock: enable

network.remote-dio: enable

performance.low-prio-threads: 32

performance.io-cache: off

performance.read-ahead: off

performance.quick-read: off

transport.address-family: inet

                                                          nfs.disable:
                                                          off

performance.client-io-threads: off

                                                          
                                                          /var/log/glusterfs/glusterd.log:
                                                          [2018-01-15
14:17:50.196228] I [MSGID: 106488] [glusterd-handler.c:1548:__glusterd_handle_cli_get_volume]
                                                          0-management:
                                                          Received get
                                                          vol req

                                                          [2018-01-15
                                                          14:25:09.555214]
                                                          I [MSGID:
                                                          106488]
                                                          [glusterd-handler.c:1548:__glusterd_handle_cli_get_volume]
                                                          0-management:
                                                          Received get
                                                          vol req

                                                          
                                                          (empty
                                                          because today
                                                          it's
                                                          2018-01-16)
                                                          /var/log/glusterfs/glustershd.log:
                                                          [2018-01-14
02:23:02.731245] I [glusterfsd-mgmt.c:1821:mgmt_getspec_cbk]
                                                          0-glusterfs:
                                                          No change in
                                                          volfile,continuing

                                                          
                                                          (empty too)
                                                          /var/log/glusterfs/bricks/brick-brick2-gv2a2.log
                                                          (the
                                                          interested
                                                          volume):
                                                          [2018-01-16
15:14:37.809965] I [MSGID: 115029] [server-handshake.c:793:server_setvolume]
0-gv2a2-server: accepted client from ovh-ov1-10302-2018/01/16-15:14:37:790306-gv2a2-client-0-0-0
                                                          (version:
                                                          3.12.4)

                                                          [2018-01-16
                                                          15:16:41.471751]
                                                          E [MSGID:
                                                          113020]
                                                          [posix.c:1485:posix_mknod]
                                                          0-gv2a2-posix:
                                                          setting gfid
                                                          on
                                                          /bricks/brick2/gv2a2/.shard/62335cb9-c7b5-4735-a879-59cff93fe622.4
                                                          failed

                                                          [2018-01-16
                                                          15:16:41.471745]
                                                          W [MSGID:
                                                          113096]
                                                          [posix-handle.c:770:posix_handle_hard]
                                                          0-gv2a2-posix:
                                                          link
                                                          /bricks/brick2/gv2a2/.shard/62335cb9-c7b5-4735-a879-59cff93fe622.4
                                                          -> 
                                                          /bricks/brick2/gv2a2/.glusterfs/a0/14/a0144df3-8d89-4aed-872e-5fef141e9e1efailed 
                                                          [File exists]

                                                          [2018-01-16
                                                          15:16:42.593392]
                                                          W [MSGID:
                                                          113096]
                                                          [posix-handle.c:770:posix_handle_hard]
                                                          0-gv2a2-posix:
                                                          link
                                                          /bricks/brick2/gv2a2/.shard/62335cb9-c7b5-4735-a879-59cff93fe622.5
                                                          ->
                                                          /bricks/brick2/gv2a2/.glusterfs/eb/04/eb044e6e-3a23-40a4-9ce1-f13af148eb67failed 
                                                          [File exists]

                                                          [2018-01-16
                                                          15:16:42.593426]
                                                          E [MSGID:
                                                          113020]
                                                          [posix.c:1485:posix_mknod]
                                                          0-gv2a2-posix:
                                                          setting gfid
                                                          on
                                                          /bricks/brick2/gv2a2/.shard/62335cb9-c7b5-4735-a879-59cff93fe622.5
                                                          failed

                                                          [2018-01-16
                                                          15:17:04.129593]
                                                          W [MSGID:
                                                          113096]
                                                          [posix-handle.c:770:posix_handle_hard]
                                                          0-gv2a2-posix:
                                                          link
                                                          /bricks/brick2/gv2a2/.shard/62335cb9-c7b5-4735-a879-59cff93fe622.8
                                                          ->
                                                          /bricks/brick2/gv2a2/.glusterfs/dc/92/dc92bd0a-0d46-4826-a4c9-d073a924dd8dfailed 
                                                          [File exists]

                                                          The message "W
                                                          [MSGID:
                                                          113096]
                                                          [posix-handle.c:770:posix_handle_hard]
                                                          0-gv2a2-posix:
                                                          link
                                                          /bricks/brick2/gv2a2/.shard/62335cb9-c7b5-4735-a879-59cff93fe622.8
                                                          ->
                                                          /bricks/brick2/gv2a2/.glusterfs/dc/92/dc92bd0a-0d46-4826-a4c9-d073a924dd8dfailed 
                                                          [File exists]"
                                                          repeated 5
                                                          times between
                                                          [2018-01-16
                                                          15:17:04.129593]
                                                          and
                                                          [2018-01-16
                                                          15:17:04.129593]

                                                          [2018-01-16
                                                          15:17:04.129661]
                                                          E [MSGID:
                                                          113020]
                                                          [posix.c:1485:posix_mknod]
                                                          0-gv2a2-posix:
                                                          setting gfid
                                                          on
                                                          /bricks/brick2/gv2a2/.shard/62335cb9-c7b5-4735-a879-59cff93fe622.8
                                                          failed

                                                          [2018-01-16
                                                          15:17:08.279162]
                                                          W [MSGID:
                                                          113096]
                                                          [posix-handle.c:770:posix_handle_hard]
                                                          0-gv2a2-posix:
                                                          link
                                                          /bricks/brick2/gv2a2/.shard/62335cb9-c7b5-4735-a879-59cff93fe622.9
                                                          ->
                                                          /bricks/brick2/gv2a2/.glusterfs/c9/b7/c9b71b00-a09f-4df1-b874-041820ca8241failed 
                                                          [File exists]

                                                          [2018-01-16
                                                          15:17:08.279162]
                                                          W [MSGID:
                                                          113096]
                                                          [posix-handle.c:770:posix_handle_hard]
                                                          0-gv2a2-posix:
                                                          link
                                                          /bricks/brick2/gv2a2/.shard/62335cb9-c7b5-4735-a879-59cff93fe622.9
                                                          ->
                                                          /bricks/brick2/gv2a2/.glusterfs/c9/b7/c9b71b00-a09f-4df1-b874-041820ca8241failed 
                                                          [File exists]

                                                          The message "W
                                                          [MSGID:
                                                          113096]
                                                          [posix-handle.c:770:posix_handle_hard]
                                                          0-gv2a2-posix:
                                                          link
                                                          /bricks/brick2/gv2a2/.shard/62335cb9-c7b5-4735-a879-59cff93fe622.9
                                                          ->
                                                          /bricks/brick2/gv2a2/.glusterfs/c9/b7/c9b71b00-a09f-4df1-b874-041820ca8241failed 
                                                          [File exists]"
                                                          repeated 2
                                                          times between
                                                          [2018-01-16
                                                          15:17:08.279162]
                                                          and
                                                          [2018-01-16
                                                          15:17:08.279162]
                                                          [2018-01-16
15:17:08.279177] E [MSGID: 113020] [posix.c:1485:posix_mknod]
                                                          0-gv2a2-posix:
                                                          setting gfid
                                                          on
                                                          /bricks/brick2/gv2a2/.shard/62335cb9-c7b5-4735-a879-59cff93fe622.9
                                                          failed

                                                          The message "W
                                                          [MSGID:
                                                          113096]
                                                          [posix-handle.c:770:posix_handle_hard]
                                                          0-gv2a2-posix:
                                                          link
                                                          /bricks/brick2/gv2a2/.shard/62335cb9-c7b5-4735-a879-59cff93fe622.4
                                                          ->
                                                          /bricks/brick2/gv2a2/.glusterfs/a0/14/a0144df3-8d89-4aed-872e-5fef141e9e1efailed 
                                                          [File exists]"
                                                          repeated 6
                                                          times between
                                                          [2018-01-16
                                                          15:16:41.471745]
                                                          and
                                                          [2018-01-16
                                                          15:16:41.471807]

                                                          The message "W
                                                          [MSGID:
                                                          113096]
                                                          [posix-handle.c:770:posix_handle_hard]
                                                          0-gv2a2-posix:
                                                          link
                                                          /bricks/brick2/gv2a2/.shard/62335cb9-c7b5-4735-a879-59cff93fe622.5
                                                          ->
                                                          /bricks/brick2/gv2a2/.glusterfs/eb/04/eb044e6e-3a23-40a4-9ce1-f13af148eb67failed 
                                                          [File exists]"
                                                          repeated 2
                                                          times between
                                                          [2018-01-16
                                                          15:16:42.593392]
                                                          and
                                                          [2018-01-16
                                                          15:16:42.593430]

                                                          [2018-01-16
                                                          15:17:32.229689]
                                                          W [MSGID:
                                                          113096]
                                                          [posix-handle.c:770:posix_handle_hard]
                                                          0-gv2a2-posix:
                                                          link
                                                          /bricks/brick2/gv2a2/.shard/62335cb9-c7b5-4735-a879-59cff93fe622.14
                                                          ->
                                                          /bricks/brick2/gv2a2/.glusterfs/53/04/530449fa-d698-4928-a262-9a0234232323failed 
                                                          [File exists]

                                                          [2018-01-16
                                                          15:17:32.229720]
                                                          E [MSGID:
                                                          113020]
                                                          [posix.c:1485:posix_mknod]
                                                          0-gv2a2-posix:
                                                          setting gfid
                                                          on
                                                          /bricks/brick2/gv2a2/.shard/62335cb9-c7b5-4735-a879-59cff93fe622.14
                                                          failed

                                                          [2018-01-16
                                                          15:18:07.154330]
                                                          W [MSGID:
                                                          113096]
                                                          [posix-handle.c:770:posix_handle_hard]
                                                          0-gv2a2-posix:
                                                          link
                                                          /bricks/brick2/gv2a2/.shard/62335cb9-c7b5-4735-a879-59cff93fe622.17
                                                          ->
                                                          /bricks/brick2/gv2a2/.glusterfs/81/96/8196dd19-84bc-4c3d-909f-8792e9b4929dfailed 
                                                          [File exists]

                                                          [2018-01-16
                                                          15:18:07.154375]
                                                          E [MSGID:
                                                          113020]
                                                          [posix.c:1485:posix_mknod]
                                                          0-gv2a2-posix:
                                                          setting gfid
                                                          on
                                                          /bricks/brick2/gv2a2/.shard/62335cb9-c7b5-4735-a879-59cff93fe622.17
                                                          failed

                                                          The message "W
                                                          [MSGID:
                                                          113096]
                                                          [posix-handle.c:770:posix_handle_hard]
                                                          0-gv2a2-posix:
                                                          link
                                                          /bricks/brick2/gv2a2/.shard/62335cb9-c7b5-4735-a879-59cff93fe622.14
                                                          ->
                                                          /bricks/brick2/gv2a2/.glusterfs/53/04/530449fa-d698-4928-a262-9a0234232323failed 
                                                          [File exists]"
                                                          repeated 7
                                                          times between
                                                          [2018-01-16
                                                          15:17:32.229689]
                                                          and
                                                          [2018-01-16
                                                          15:17:32.229806]

                                                          The message "W
                                                          [MSGID:
                                                          113096]
                                                          [posix-handle.c:770:posix_handle_hard]
                                                          0-gv2a2-posix:
                                                          link
                                                          /bricks/brick2/gv2a2/.shard/62335cb9-c7b5-4735-a879-59cff93fe622.17
                                                          ->
                                                          /bricks/brick2/gv2a2/.glusterfs/81/96/8196dd19-84bc-4c3d-909f-8792e9b4929dfailed 
                                                          [File exists]"
                                                          repeated 3
                                                          times between
                                                          [2018-01-16
                                                          15:18:07.154330]
                                                          and
                                                          [2018-01-16
                                                          15:18:07.154357]

                                                          [2018-01-16
                                                          15:19:23.618794]
                                                          W [MSGID:
                                                          113096]
                                                          [posix-handle.c:770:posix_handle_hard]
                                                          0-gv2a2-posix:
                                                          link
                                                          /bricks/brick2/gv2a2/.shard/62335cb9-c7b5-4735-a879-59cff93fe622.21
                                                          ->
                                                          /bricks/brick2/gv2a2/.glusterfs/6d/02/6d02bd98-83de-43e8-a7af-b1d5f5160403failed 
                                                          [File exists]

                                                          [2018-01-16
                                                          15:19:23.618827]
                                                          E [MSGID:
                                                          113020]
                                                          [posix.c:1485:posix_mknod]
                                                          0-gv2a2-posix:
                                                          setting gfid
                                                          on
                                                          /bricks/brick2/gv2a2/.shard/62335cb9-c7b5-4735-a879-59cff93fe622.21
                                                          failed

                                                          The message "W
                                                          [MSGID:
                                                          113096]
                                                          [posix-handle.c:770:posix_handle_hard]
                                                          0-gv2a2-posix:
                                                          link
                                                          /bricks/brick2/gv2a2/.shard/62335cb9-c7b5-4735-a879-59cff93fe622.21
                                                          ->
                                                          /bricks/brick2/gv2a2/.glusterfs/6d/02/6d02bd98-83de-43e8-a7af-b1d5f5160403failed 
                                                          [File exists]"
                                                          repeated 3
                                                          times between
                                                          [2018-01-16
                                                          15:19:23.618794]
                                                          and
                                                          [2018-01-16
                                                          15:19:23.618794]

                                                          
                                                          Thank you,

                                                          
                                                          Il
                                                          16/01/2018
                                                          11:40, Krutika
                                                          Dhananjay ha
                                                          scritto:

                                                          
                                                          Also to
                                                          help isolate
                                                          the component,
                                                          could you
                                                          answer these:

                                                          
                                                          1. on a
                                                          different
                                                          volume with
                                                          shard not
                                                          enabled, do
                                                          you see this
                                                          issue?

                                                          
                                                          2. on a plain
                                                          3-way
                                                          replicated
                                                          volume (no
                                                          arbiter), do
                                                          you see this
                                                          issue?

                                                          
                                                          On
                                                          Tue, Jan 16,
                                                          2018 at 4:03
                                                          PM, Krutika
                                                          Dhananjay <kdhananj@xxxxxxxxxx>
                                                          wrote:

                                                          
                                                          Please
                                                          share the
                                                          volume-info
                                                          output and the
                                                          logs under
                                                          /var/log/glusterfs/
                                                          from all your
                                                          nodes. for
                                                          investigating
                                                          the issue.
                                                          
                                                          
                                                          -Krutika

                                                          
                                                          On
                                                          Tue, Jan 16,
                                                          2018 at 1:30
                                                          PM, Ing. Luca
                                                          Lazzeroni -
                                                          Trend Servizi
                                                          Srl <luca@xxxxxxxx>
                                                          wrote:

                                                          Hi
                                                          to everyone.

                                                          
                                                          I've got a
                                                          strange
                                                          problem with a
                                                          gluster setup:
                                                          3 nodes with
                                                          Centos 7.4,
                                                          Gluster 3.12.4
                                                          from
                                                          Centos/Gluster
                                                          repositories,
                                                          QEMU-KVM
                                                          version 2.9.0
                                                          (compiled from
                                                          RHEL sources).

                                                          
                                                          I'm running
                                                          volumes in
                                                          replica 3
                                                          arbiter 1 mode
                                                          (but I've got
                                                          a volume in
                                                          "pure" replica
                                                          3 mode too).
                                                          I've applied
                                                          the "virt"
                                                          group settings
                                                          to my volumes
                                                          since they
                                                          host VM
                                                          images.

                                                          
                                                          If I try to
                                                          install
                                                          something (eg:
                                                          Ubuntu Server
                                                          16.04.3) on a
                                                          VM (and so I
                                                          generate a bit
                                                          of I/O inside
                                                          it) and
                                                          configure KVM
                                                          to access
                                                          gluster volume
                                                          directly (via
                                                          libvirt),
                                                          install fails
                                                          after a while
                                                          because the
                                                          disk content
                                                          is corrupted.
                                                          If I inspect
                                                          the block
                                                          inside the
                                                          disk (by
                                                          accessing the
                                                          image directly
                                                          from outside)
                                                          I can found
                                                          many files
                                                          filled with
                                                          "^@".

                                                          
                                                          Also,
                                                          what exactly
                                                          do you mean by
                                                          accessing the
                                                          image directly
                                                          from outside?
                                                          Was it from
                                                          the brick
                                                          directories
                                                          directly? Was
                                                          it from the
                                                          mount point of
                                                          the volume?
                                                          Could you
                                                          elaborate?
                                                          Which files
                                                          exactly did
                                                          you check?

                                                          
                                                          -Krutika
                                                          

                                                          If, instead, I
                                                          configure KVM
                                                          to access VM
                                                          images via a
                                                          FUSE mount,
                                                          everything
                                                          seems to work
                                                          correctly.

                                                          
                                                          Note that the
                                                          problem with
                                                          install is
                                                          verified 100%
                                                          time with
                                                          QCOW2 image,
                                                          while it
                                                          appears only
                                                          after with RAW
                                                          disk images.

                                                          
                                                          Is there
                                                          anyone who
                                                          experienced
                                                          the same
                                                          problem ?

                                                          
                                                          Thank you,

                                                          
                                                          -- 

                                                          Ing. Luca
                                                          Lazzeroni

                                                          Responsabile
                                                          Ricerca e
                                                          Sviluppo

                                                          Trend Servizi
                                                          Srl

                                                          Tel:
                                                          0376/631761

                                                          Web: https://www.trendservizi.it

                                                          
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                                                          mailing list

                                                          Gluster-users@xxxxxxxxxxx

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                                                          -- 
Ing. Luca Lazzeroni
Responsabile Ricerca e Sviluppo
Trend Servizi Srl
Tel: 0376/631761
Web: https://www.trendservizi.it
                                                          

                                                          _______________________________________________
Gluster-users mailing list
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                                                        -- 
Ing. Luca Lazzeroni
Responsabile Ricerca e Sviluppo
Trend Servizi Srl
Tel: 0376/631761
Web: https://www.trendservizi.it
                                                        

                                                        _______________________________________________
Gluster-users mailing list
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                                                      -- 
Ing. Luca Lazzeroni
Responsabile Ricerca e Sviluppo
Trend Servizi Srl
Tel: 0376/631761
Web: https://www.trendservizi.it
                                                    
                                                  
_______________________________________________

                                                Gluster-users mailing
                                                list

                                                Gluster-users@xxxxxxxxxxx

                                                http://lists.gluster.org/mailman/listinfo/gluster-users

                                              
                                      -- 
Ing. Luca Lazzeroni
Responsabile Ricerca e Sviluppo
Trend Servizi Srl
Tel: 0376/631761
Web: https://www.trendservizi.it
                                    
                                  
                        -- 
Ing. Luca Lazzeroni
Responsabile Ricerca e Sviluppo
Trend Servizi Srl
Tel: 0376/631761
Web: https://www.trendservizi.it
                        

                        _______________________________________________
Gluster-users mailing list
Gluster-users@xxxxxxxxxxx
http://lists.gluster.org/mailman/listinfo/gluster-users
                      
                      
                      -- 
Ing. Luca Lazzeroni
Responsabile Ricerca e Sviluppo
Trend Servizi Srl
Tel: 0376/631761
Web: https://www.trendservizi.it
                      

                      _______________________________________________
Gluster-users mailing list
Gluster-users@xxxxxxxxxxx
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                    -- 
Ing. Luca Lazzeroni
Responsabile Ricerca e Sviluppo
Trend Servizi Srl
Tel: 0376/631761
Web: https://www.trendservizi.it
                  
                
              _______________________________________________

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      -- 
Ing. Luca Lazzeroni
Responsabile Ricerca e Sviluppo
Trend Servizi Srl
Tel: 0376/631761
Web: https://www.trendservizi.it
      

      _______________________________________________
Gluster-users mailing list
Gluster-users@xxxxxxxxxxx
http://lists.gluster.org/mailman/listinfo/gluster-users
    
    
    -- 
Ing. Luca Lazzeroni
Responsabile Ricerca e Sviluppo
Trend Servizi Srl
Tel: 0376/631761
Web: https://www.trendservizi.it
  

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