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    <p>Hi,</p>
    <p>after our IRC chat I've rebuilt a virtual machine with FUSE based
      virtual disk. Everything worked flawlessly.</p>
    <p>Now I'm sending you the output of the requested getfattr command
      on the disk image:</p>
    <p># file: TestFUSE-vda.qcow2<br>
      trusted.afr.dirty=0x000000000000000000000000<br>
      trusted.gfid=0x40ffafbbe987445692bb31295fa40105<br>
trusted.gfid2path.dc9dde61f0b77eab=0x31326533323631662d373839332d346262302d383738632d3966623765306232336263652f54657374465553452d7664612e71636f7732<br>
      trusted.glusterfs.shard.block-size=0x0000000004000000<br>
trusted.glusterfs.shard.file-size=0x00000000c15300000000000000000000000000000060be900000000000000000<br>
    </p>
    <p>Hope this helps.</p>
    <p><br>
    </p>
    <br>
    <div class="moz-cite-prefix">Il 17/01/2018 11:37, Ing. Luca
      Lazzeroni - Trend Servizi Srl ha scritto:<br>
    </div>
    <blockquote type="cite"
      cite="mid:ae0a0dcc-de0f-28b3-8767-bf61dde864eb@gvnet.it">
      <meta http-equiv="Content-Type" content="text/html; charset=utf-8">
      <p>I actually use FUSE and it works. If i try to use "libgfapi"
        direct interface to gluster in qemu-kvm, the problem appears.</p>
      <p><br>
      </p>
      <br>
      <div class="moz-cite-prefix">Il 17/01/2018 11:35, Krutika
        Dhananjay ha scritto:<br>
      </div>
      <blockquote type="cite"
cite="mid:CAPhYV8NV8P8U7v3hcc1qZUbO8_ujbsuu2JSfNc+jZJ5izfnd8w@mail.gmail.com">
        <div dir="ltr">
          <div>Really? Then which protocol exactly do you see this issue
            with? libgfapi? NFS? <br>
            <br>
          </div>
          -Krutika<br>
        </div>
        <div class="gmail_extra"><br>
          <div class="gmail_quote">On Wed, Jan 17, 2018 at 3:59 PM, Ing.
            Luca Lazzeroni - Trend Servizi Srl <span dir="ltr">&lt;<a
                href="mailto:luca@gvnet.it" target="_blank"
                moz-do-not-send="true">luca@gvnet.it</a>&gt;</span>
            wrote:<br>
            <blockquote class="gmail_quote" style="margin:0 0 0
              .8ex;border-left:1px #ccc solid;padding-left:1ex">
              <div text="#000000" bgcolor="#FFFFFF">
                <p>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. <br>
                </p>
                <div>
                  <div class="h5">
                    <p><br>
                    </p>
                    <br>
                    <div class="m_-2254898158214265998moz-cite-prefix">Il
                      17/01/2018 11:00, Krutika Dhananjay ha scritto:<br>
                    </div>
                    <blockquote type="cite">
                      <div dir="ltr"><br>
                        <div class="gmail_extra"><br>
                          <div class="gmail_quote">On Tue, Jan 16, 2018
                            at 10:47 PM, Ing. Luca Lazzeroni - Trend
                            Servizi Srl <span dir="ltr">&lt;<a
                                href="mailto:luca@gvnet.it"
                                target="_blank" moz-do-not-send="true">luca@gvnet.it</a>&gt;</span>
                            wrote:<br>
                            <blockquote class="gmail_quote"
                              style="margin:0 0 0 .8ex;border-left:1px
                              #ccc solid;padding-left:1ex">
                              <div text="#000000" bgcolor="#FFFFFF">
                                <p>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).</p>
                                <p>What does the "link" error in bricks
                                  log files means ? <br>
                                </p>
                                <p>I've seen the source code looking for
                                  the lines where it happens and it
                                  seems a warning (it doesn't imply a
                                  failure).</p>
                              </div>
                            </blockquote>
                            <div><br>
                            </div>
                            <div>Indeed, it only represents a transient
                              state when the shards are created for the
                              first time and does not indicate a
                              failure.</div>
                            <div>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.</div>
                            <div><br>
                            </div>
                            <div>For example, if your volume was mounted
                              at /mnt/glusterfs, then your log file
                              would be named mnt-glusterfs.log.</div>
                            <div><br>
                            </div>
                            <div>-Krutika<br>
                            </div>
                            <div> <br>
                            </div>
                            <blockquote class="gmail_quote"
                              style="margin:0 0 0 .8ex;border-left:1px
                              #ccc solid;padding-left:1ex">
                              <div text="#000000" bgcolor="#FFFFFF">
                                <div>
                                  <div class="m_-2254898158214265998h5">
                                    <p><br>
                                    </p>
                                    <br>
                                    <div
                                      class="m_-2254898158214265998m_-2427999713053267927moz-cite-prefix">Il
                                      16/01/2018 17:39, Ing. Luca
                                      Lazzeroni - Trend Servizi Srl ha
                                      scritto:<br>
                                    </div>
                                    <blockquote type="cite">
                                      <p>An update:</p>
                                      <p>I've tried, for my tests, to
                                        create the vm volume as</p>
                                      <p>qemu-img create -f qcow2 -o
                                        preallocation=full
                                        gluster://gluster1/Test/Test-v<wbr>da.img
                                        20G</p>
                                      <p>et voila !</p>
                                      <p>No errors at all, neither in
                                        bricks' log file (the "link
                                        failed" message disappeared),
                                        neither in VM (no corruption and
                                        installed succesfully).</p>
                                      <p>I'll do another test with a
                                        fully preallocated raw image.</p>
                                      <p><br>
                                      </p>
                                      <br>
                                      <div
                                        class="m_-2254898158214265998m_-2427999713053267927moz-cite-prefix">Il
                                        16/01/2018 16:31, Ing. Luca
                                        Lazzeroni - Trend Servizi Srl ha
                                        scritto:<br>
                                      </div>
                                      <blockquote type="cite">
                                        <p>I've just done all the steps
                                          to reproduce the problem. <br>
                                        </p>
                                        <p>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.<br>
                                        </p>
                                        <p>Here are the informations:</p>
                                        <p>[root@ovh-ov1 bricks]#
                                          gluster volume info gv2a2<br>
                                           <br>
                                          Volume Name: gv2a2<br>
                                          Type: Replicate<br>
                                          Volume ID:
                                          83c84774-2068-4bfc-b0b9-3e6b93<wbr>705b9f<br>
                                          Status: Started<br>
                                          Snapshot Count: 0<br>
                                          Number of Bricks: 1 x (2 + 1)
                                          = 3<br>
                                          Transport-type: tcp<br>
                                          Bricks:<br>
                                          Brick1:
                                          gluster1:/bricks/brick2/gv2a2<br>
                                          Brick2:
                                          gluster3:/bricks/brick3/gv2a2<br>
                                          Brick3:
                                          gluster2:/bricks/arbiter_brick<wbr>_gv2a2/gv2a2
                                          (arbiter)<br>
                                          Options Reconfigured:<br>
                                          storage.owner-gid: 107<br>
                                          storage.owner-uid: 107<br>
                                          user.cifs: off<br>
                                          features.shard: on<br>
                                          cluster.shd-wait-qlength:
                                          10000<br>
                                          cluster.shd-max-threads: 8<br>
                                          cluster.locking-scheme:
                                          granular<br>
                                          cluster.data-self-heal-algorit<wbr>hm:
                                          full<br>
                                          cluster.server-quorum-type:
                                          server<br>
                                          cluster.quorum-type: auto<br>
                                          cluster.eager-lock: enable<br>
                                          network.remote-dio: enable<br>
                                          performance.low-prio-threads:
                                          32<br>
                                          performance.io-cache: off<br>
                                          performance.read-ahead: off<br>
                                          performance.quick-read: off<br>
                                          transport.address-family: inet<br>
                                          nfs.disable: off<br>
                                          performance.client-io-threads:
                                          off<br>
                                          <br>
                                        </p>
                                        <p>/var/log/glusterfs/glusterd.lo<wbr>g:</p>
                                        <p>[2018-01-15 14:17:50.196228]
                                          I [MSGID: 106488]
                                          [glusterd-handler.c:1548:__glu<wbr>sterd_handle_cli_get_volume]
                                          0-management: Received get vol
                                          req<br>
                                          [2018-01-15 14:25:09.555214] I
                                          [MSGID: 106488]
                                          [glusterd-handler.c:1548:__glu<wbr>sterd_handle_cli_get_volume]
                                          0-management: Received get vol
                                          req<br>
                                        </p>
                                        <p>(empty because today it's
                                          2018-01-16)</p>
                                        <p>/var/log/glusterfs/glustershd.<wbr>log:</p>
                                        <p>[2018-01-14 02:23:02.731245]
                                          I
                                          [glusterfsd-mgmt.c:1821:mgmt_g<wbr>etspec_cbk]
                                          0-glusterfs: No change in
                                          volfile,continuing<br>
                                        </p>
                                        <p>(empty too)</p>
                                        <p>/var/log/glusterfs/bricks/bric<wbr>k-brick2-gv2a2.log
                                          (the interested volume):</p>
                                        <p>[2018-01-16 15:14:37.809965]
                                          I [MSGID: 115029]
                                          [server-handshake.c:793:server<wbr>_setvolume]
                                          0-gv2a2-server: accepted
                                          client from
                                          ovh-ov1-10302-2018/01/16-15:14<wbr>:37:790306-gv2a2-client-0-0-0
                                          (version: 3.12.4)<br>
                                          [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/62<wbr>335cb9-c7b5-4735-a879-59cff93f<wbr>e622.4
                                          failed<br>
                                          [2018-01-16 15:16:41.471745] W
                                          [MSGID: 113096]
                                          [posix-handle.c:770:posix_hand<wbr>le_hard]
                                          0-gv2a2-posix: link
                                          /bricks/brick2/gv2a2/.shard/62<wbr>335cb9-c7b5-4735-a879-59cff93f<wbr>e622.4
                                          -&gt; 
                                          /bricks/brick2/gv2a2/.glusterf<wbr>s/a0/14/a0144df3-8d89-4aed-<wbr>872e-5fef141e9e1efailed 
                                          [File exists]<br>
                                          [2018-01-16 15:16:42.593392] W
                                          [MSGID: 113096]
                                          [posix-handle.c:770:posix_hand<wbr>le_hard]
                                          0-gv2a2-posix: link
                                          /bricks/brick2/gv2a2/.shard/62<wbr>335cb9-c7b5-4735-a879-59cff93f<wbr>e622.5
                                          -&gt;
                                          /bricks/brick2/gv2a2/.glusterf<wbr>s/eb/04/eb044e6e-3a23-40a4-<wbr>9ce1-f13af148eb67failed 
                                          [File exists]<br>
                                          [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/62<wbr>335cb9-c7b5-4735-a879-59cff93f<wbr>e622.5
                                          failed<br>
                                          [2018-01-16 15:17:04.129593] W
                                          [MSGID: 113096]
                                          [posix-handle.c:770:posix_hand<wbr>le_hard]
                                          0-gv2a2-posix: link
                                          /bricks/brick2/gv2a2/.shard/62<wbr>335cb9-c7b5-4735-a879-59cff93f<wbr>e622.8
                                          -&gt;
                                          /bricks/brick2/gv2a2/.glusterf<wbr>s/dc/92/dc92bd0a-0d46-4826-<wbr>a4c9-d073a924dd8dfailed 
                                          [File exists]<br>
                                          The message "W [MSGID: 113096]
                                          [posix-handle.c:770:posix_hand<wbr>le_hard]
                                          0-gv2a2-posix: link
                                          /bricks/brick2/gv2a2/.shard/62<wbr>335cb9-c7b5-4735-a879-59cff93f<wbr>e622.8
                                          -&gt;
                                          /bricks/brick2/gv2a2/.glusterf<wbr>s/dc/92/dc92bd0a-0d46-4826-<wbr>a4c9-d073a924dd8dfailed 
                                          [File exists]" repeated 5
                                          times between [2018-01-16
                                          15:17:04.129593] and
                                          [2018-01-16 15:17:04.129593]<br>
                                          [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/62<wbr>335cb9-c7b5-4735-a879-59cff93f<wbr>e622.8
                                          failed<br>
                                          [2018-01-16 15:17:08.279162] W
                                          [MSGID: 113096]
                                          [posix-handle.c:770:posix_hand<wbr>le_hard]
                                          0-gv2a2-posix: link
                                          /bricks/brick2/gv2a2/.shard/62<wbr>335cb9-c7b5-4735-a879-59cff93f<wbr>e622.9
                                          -&gt;
                                          /bricks/brick2/gv2a2/.glusterf<wbr>s/c9/b7/c9b71b00-a09f-4df1-<wbr>b874-041820ca8241failed 
                                          [File exists]<br>
                                          [2018-01-16 15:17:08.279162] W
                                          [MSGID: 113096]
                                          [posix-handle.c:770:posix_hand<wbr>le_hard]
                                          0-gv2a2-posix: link
                                          /bricks/brick2/gv2a2/.shard/62<wbr>335cb9-c7b5-4735-a879-59cff93f<wbr>e622.9
                                          -&gt;
                                          /bricks/brick2/gv2a2/.glusterf<wbr>s/c9/b7/c9b71b00-a09f-4df1-<wbr>b874-041820ca8241failed 
                                          [File exists]<br>
                                          The message "W [MSGID: 113096]
                                          [posix-handle.c:770:posix_hand<wbr>le_hard]
                                          0-gv2a2-posix: link
                                          /bricks/brick2/gv2a2/.shard/62<wbr>335cb9-c7b5-4735-a879-59cff93f<wbr>e622.9
                                          -&gt;
                                          /bricks/brick2/gv2a2/.glusterf<wbr>s/c9/b7/c9b71b00-a09f-4df1-<wbr>b874-041820ca8241failed 
                                          [File exists]" repeated 2
                                          times between [2018-01-16
                                          15:17:08.279162] and
                                          [2018-01-16 15:17:08.279162]</p>
                                        <p>[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/62<wbr>335cb9-c7b5-4735-a879-59cff93f<wbr>e622.9
                                          failed<br>
                                          The message "W [MSGID: 113096]
                                          [posix-handle.c:770:posix_hand<wbr>le_hard]
                                          0-gv2a2-posix: link
                                          /bricks/brick2/gv2a2/.shard/62<wbr>335cb9-c7b5-4735-a879-59cff93f<wbr>e622.4
                                          -&gt;
                                          /bricks/brick2/gv2a2/.glusterf<wbr>s/a0/14/a0144df3-8d89-4aed-<wbr>872e-5fef141e9e1efailed 
                                          [File exists]" repeated 6
                                          times between [2018-01-16
                                          15:16:41.471745] and
                                          [2018-01-16 15:16:41.471807]<br>
                                          The message "W [MSGID: 113096]
                                          [posix-handle.c:770:posix_hand<wbr>le_hard]
                                          0-gv2a2-posix: link
                                          /bricks/brick2/gv2a2/.shard/62<wbr>335cb9-c7b5-4735-a879-59cff93f<wbr>e622.5
                                          -&gt;
                                          /bricks/brick2/gv2a2/.glusterf<wbr>s/eb/04/eb044e6e-3a23-40a4-<wbr>9ce1-f13af148eb67failed 
                                          [File exists]" repeated 2
                                          times between [2018-01-16
                                          15:16:42.593392] and
                                          [2018-01-16 15:16:42.593430]<br>
                                          [2018-01-16 15:17:32.229689] W
                                          [MSGID: 113096]
                                          [posix-handle.c:770:posix_hand<wbr>le_hard]
                                          0-gv2a2-posix: link
                                          /bricks/brick2/gv2a2/.shard/62<wbr>335cb9-c7b5-4735-a879-59cff93f<wbr>e622.14
                                          -&gt;
                                          /bricks/brick2/gv2a2/.glusterf<wbr>s/53/04/530449fa-d698-4928-<wbr>a262-9a0234232323failed 
                                          [File exists]<br>
                                          [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/62<wbr>335cb9-c7b5-4735-a879-59cff93f<wbr>e622.14
                                          failed<br>
                                          [2018-01-16 15:18:07.154330] W
                                          [MSGID: 113096]
                                          [posix-handle.c:770:posix_hand<wbr>le_hard]
                                          0-gv2a2-posix: link
                                          /bricks/brick2/gv2a2/.shard/62<wbr>335cb9-c7b5-4735-a879-59cff93f<wbr>e622.17
                                          -&gt;
                                          /bricks/brick2/gv2a2/.glusterf<wbr>s/81/96/8196dd19-84bc-4c3d-<wbr>909f-8792e9b4929dfailed 
                                          [File exists]<br>
                                          [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/62<wbr>335cb9-c7b5-4735-a879-59cff93f<wbr>e622.17
                                          failed<br>
                                          The message "W [MSGID: 113096]
                                          [posix-handle.c:770:posix_hand<wbr>le_hard]
                                          0-gv2a2-posix: link
                                          /bricks/brick2/gv2a2/.shard/62<wbr>335cb9-c7b5-4735-a879-59cff93f<wbr>e622.14
                                          -&gt;
                                          /bricks/brick2/gv2a2/.glusterf<wbr>s/53/04/530449fa-d698-4928-<wbr>a262-9a0234232323failed 
                                          [File exists]" repeated 7
                                          times between [2018-01-16
                                          15:17:32.229689] and
                                          [2018-01-16 15:17:32.229806]<br>
                                          The message "W [MSGID: 113096]
                                          [posix-handle.c:770:posix_hand<wbr>le_hard]
                                          0-gv2a2-posix: link
                                          /bricks/brick2/gv2a2/.shard/62<wbr>335cb9-c7b5-4735-a879-59cff93f<wbr>e622.17
                                          -&gt;
                                          /bricks/brick2/gv2a2/.glusterf<wbr>s/81/96/8196dd19-84bc-4c3d-<wbr>909f-8792e9b4929dfailed 
                                          [File exists]" repeated 3
                                          times between [2018-01-16
                                          15:18:07.154330] and
                                          [2018-01-16 15:18:07.154357]<br>
                                          [2018-01-16 15:19:23.618794] W
                                          [MSGID: 113096]
                                          [posix-handle.c:770:posix_hand<wbr>le_hard]
                                          0-gv2a2-posix: link
                                          /bricks/brick2/gv2a2/.shard/62<wbr>335cb9-c7b5-4735-a879-59cff93f<wbr>e622.21
                                          -&gt;
                                          /bricks/brick2/gv2a2/.glusterf<wbr>s/6d/02/6d02bd98-83de-43e8-<wbr>a7af-b1d5f5160403failed 
                                          [File exists]<br>
                                          [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/62<wbr>335cb9-c7b5-4735-a879-59cff93f<wbr>e622.21
                                          failed<br>
                                          The message "W [MSGID: 113096]
                                          [posix-handle.c:770:posix_hand<wbr>le_hard]
                                          0-gv2a2-posix: link
                                          /bricks/brick2/gv2a2/.shard/62<wbr>335cb9-c7b5-4735-a879-59cff93f<wbr>e622.21
                                          -&gt;
                                          /bricks/brick2/gv2a2/.glusterf<wbr>s/6d/02/6d02bd98-83de-43e8-<wbr>a7af-b1d5f5160403failed 
                                          [File exists]" repeated 3
                                          times between [2018-01-16
                                          15:19:23.618794] and
                                          [2018-01-16 15:19:23.618794]<br>
                                          <br>
                                        </p>
                                        <p>Thank you,<br>
                                        </p>
                                        <br>
                                        <div
                                          class="m_-2254898158214265998m_-2427999713053267927moz-cite-prefix">Il
                                          16/01/2018 11:40, Krutika
                                          Dhananjay ha scritto:<br>
                                        </div>
                                        <blockquote type="cite">
                                          <div dir="ltr">
                                            <div>
                                              <div>
                                                <div>Also to help
                                                  isolate the component,
                                                  could you answer
                                                  these:<br>
                                                  <br>
                                                </div>
                                                1. on a different volume
                                                with shard not enabled,
                                                do you see this issue?<br>
                                              </div>
                                              2. on a plain 3-way
                                              replicated volume (no
                                              arbiter), do you see this
                                              issue?<br>
                                              <br>
                                            </div>
                                            <br>
                                            <div class="gmail_extra"><br>
                                              <div class="gmail_quote">On
                                                Tue, Jan 16, 2018 at
                                                4:03 PM, Krutika
                                                Dhananjay <span
                                                  dir="ltr">&lt;<a
                                                    href="mailto:kdhananj@redhat.com"
                                                    target="_blank"
                                                    moz-do-not-send="true">kdhananj@redhat.com</a>&gt;</span>
                                                wrote:<br>
                                                <blockquote
                                                  class="gmail_quote"
                                                  style="margin:0 0 0
                                                  .8ex;border-left:1px
                                                  #ccc
                                                  solid;padding-left:1ex">
                                                  <div dir="ltr">
                                                    <div>Please share
                                                      the volume-info
                                                      output and the
                                                      logs under
                                                      /var/log/glusterfs/
                                                      from all your
                                                      nodes. for
                                                      investigating the
                                                      issue.</div>
                                                    <span
                                                      class="m_-2254898158214265998m_-2427999713053267927HOEnZb"><font
                                                        color="#888888">
                                                        <div><br>
                                                        </div>
                                                        -Krutika<br>
                                                      </font></span></div>
                                                  <div
                                                    class="m_-2254898158214265998m_-2427999713053267927HOEnZb">
                                                    <div
                                                      class="m_-2254898158214265998m_-2427999713053267927h5">
                                                      <div
                                                        class="gmail_extra"><br>
                                                        <div
                                                          class="gmail_quote">On
                                                          Tue, Jan 16,
                                                          2018 at 1:30
                                                          PM, Ing. Luca
                                                          Lazzeroni -
                                                          Trend Servizi
                                                          Srl <span
                                                          dir="ltr">&lt;<a
href="mailto:luca@gvnet.it" target="_blank" moz-do-not-send="true">luca@gvnet.it</a>&gt;</span>
                                                          wrote:<br>
                                                          <blockquote
                                                          class="gmail_quote"
style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Hi
                                                          to everyone.<br>
                                                          <br>
                                                          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).<br>
                                                          <br>
                                                          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.<br>
                                                          <br>
                                                          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
                                                          "^@".<br>
                                                          </blockquote>
                                                        </div>
                                                      </div>
                                                    </div>
                                                  </div>
                                                </blockquote>
                                                <div><br>
                                                </div>
                                                <div>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?<br>
                                                </div>
                                                <div><br>
                                                </div>
                                                <div>-Krutika</div>
                                                <div><br>
                                                </div>
                                                <blockquote
                                                  class="gmail_quote"
                                                  style="margin:0 0 0
                                                  .8ex;border-left:1px
                                                  #ccc
                                                  solid;padding-left:1ex">
                                                  <div
                                                    class="m_-2254898158214265998m_-2427999713053267927HOEnZb">
                                                    <div
                                                      class="m_-2254898158214265998m_-2427999713053267927h5">
                                                      <div
                                                        class="gmail_extra">
                                                        <div
                                                          class="gmail_quote">
                                                          <blockquote
                                                          class="gmail_quote"
style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"> <br>
                                                          If, instead, I
                                                          configure KVM
                                                          to access VM
                                                          images via a
                                                          FUSE mount,
                                                          everything
                                                          seems to work
                                                          correctly.<br>
                                                          <br>
                                                          Note that the
                                                          problem with
                                                          install is
                                                          verified 100%
                                                          time with
                                                          QCOW2 image,
                                                          while it
                                                          appears only
                                                          after with RAW
                                                          disk images.<br>
                                                          <br>
                                                          Is there
                                                          anyone who
                                                          experienced
                                                          the same
                                                          problem ?<br>
                                                          <br>
                                                          Thank you,<span
class="m_-2254898158214265998m_-2427999713053267927m_-4139169106555235646HOEnZb"><font
color="#888888"><br>
                                                          <br>
                                                          <br>
                                                          -- <br>
                                                          Ing. Luca
                                                          Lazzeroni<br>
                                                          Responsabile
                                                          Ricerca e
                                                          Sviluppo<br>
                                                          Trend Servizi
                                                          Srl<br>
                                                          Tel:
                                                          0376/631761<br>
                                                          Web: <a
                                                          href="https://www.trendservizi.it"
rel="noreferrer" target="_blank" moz-do-not-send="true">https://www.trendservizi.it</a><br>
                                                          <br>
______________________________<wbr>_________________<br>
                                                          Gluster-users
                                                          mailing list<br>
                                                          <a
                                                          href="mailto:Gluster-users@gluster.org"
target="_blank" moz-do-not-send="true">Gluster-users@gluster.org</a><br>
                                                          <a
                                                          href="http://lists.gluster.org/mailman/listinfo/gluster-users"
rel="noreferrer" target="_blank" moz-do-not-send="true">http://lists.gluster.org/mailm<wbr>an/listinfo/gluster-users</a><br>
                                                          </font></span></blockquote>
                                                        </div>
                                                        <br>
                                                      </div>
                                                    </div>
                                                  </div>
                                                </blockquote>
                                              </div>
                                              <br>
                                            </div>
                                          </div>
                                        </blockquote>
                                        <br>
                                        <pre class="m_-2254898158214265998m_-2427999713053267927moz-signature" cols="72">-- 
Ing. Luca Lazzeroni
Responsabile Ricerca e Sviluppo
Trend Servizi Srl
Tel: 0376/631761
Web: <a class="m_-2254898158214265998m_-2427999713053267927moz-txt-link-freetext" href="https://www.trendservizi.it" target="_blank" moz-do-not-send="true">https://www.trendservizi.it</a></pre>
                                        <br>
                                        <fieldset
                                          class="m_-2254898158214265998m_-2427999713053267927mimeAttachmentHeader"></fieldset>
                                        <br>
                                        <pre>______________________________<wbr>_________________
Gluster-users mailing list
<a class="m_-2254898158214265998m_-2427999713053267927moz-txt-link-abbreviated" href="mailto:Gluster-users@gluster.org" target="_blank" moz-do-not-send="true">Gluster-users@gluster.org</a>
<a class="m_-2254898158214265998m_-2427999713053267927moz-txt-link-freetext" href="http://lists.gluster.org/mailman/listinfo/gluster-users" target="_blank" moz-do-not-send="true">http://lists.gluster.org/mailm<wbr>an/listinfo/gluster-users</a></pre>
                                      </blockquote>
                                      <br>
                                      <pre class="m_-2254898158214265998m_-2427999713053267927moz-signature" cols="72">-- 
Ing. Luca Lazzeroni
Responsabile Ricerca e Sviluppo
Trend Servizi Srl
Tel: 0376/631761
Web: <a class="m_-2254898158214265998m_-2427999713053267927moz-txt-link-freetext" href="https://www.trendservizi.it" target="_blank" moz-do-not-send="true">https://www.trendservizi.it</a></pre>
                                      <br>
                                      <fieldset
                                        class="m_-2254898158214265998m_-2427999713053267927mimeAttachmentHeader"></fieldset>
                                      <br>
                                      <pre>______________________________<wbr>_________________
Gluster-users mailing list
<a class="m_-2254898158214265998m_-2427999713053267927moz-txt-link-abbreviated" href="mailto:Gluster-users@gluster.org" target="_blank" moz-do-not-send="true">Gluster-users@gluster.org</a>
<a class="m_-2254898158214265998m_-2427999713053267927moz-txt-link-freetext" href="http://lists.gluster.org/mailman/listinfo/gluster-users" target="_blank" moz-do-not-send="true">http://lists.gluster.org/mailm<wbr>an/listinfo/gluster-users</a></pre>
                                    </blockquote>
                                    <br>
                                    <pre class="m_-2254898158214265998m_-2427999713053267927moz-signature" cols="72">-- 
Ing. Luca Lazzeroni
Responsabile Ricerca e Sviluppo
Trend Servizi Srl
Tel: 0376/631761
Web: <a class="m_-2254898158214265998m_-2427999713053267927moz-txt-link-freetext" href="https://www.trendservizi.it" target="_blank" moz-do-not-send="true">https://www.trendservizi.it</a></pre>
                                  </div>
                                </div>
                              </div>
                              <br>
                              ______________________________<wbr>_________________<br>
                              Gluster-users mailing list<br>
                              <a href="mailto:Gluster-users@gluster.org"
                                target="_blank" moz-do-not-send="true">Gluster-users@gluster.org</a><br>
                              <a
                                href="http://lists.gluster.org/mailman/listinfo/gluster-users"
                                rel="noreferrer" target="_blank"
                                moz-do-not-send="true">http://lists.gluster.org/mailm<wbr>an/listinfo/gluster-users</a><br>
                            </blockquote>
                          </div>
                          <br>
                        </div>
                      </div>
                    </blockquote>
                    <br>
                    <pre class="m_-2254898158214265998moz-signature" cols="72">-- 
Ing. Luca Lazzeroni
Responsabile Ricerca e Sviluppo
Trend Servizi Srl
Tel: 0376/631761
Web: <a class="m_-2254898158214265998moz-txt-link-freetext" href="https://www.trendservizi.it" target="_blank" moz-do-not-send="true">https://www.trendservizi.it</a></pre>
                  </div>
                </div>
              </div>
            </blockquote>
          </div>
          <br>
        </div>
      </blockquote>
      <br>
      <pre class="moz-signature" cols="72">-- 
Ing. Luca Lazzeroni
Responsabile Ricerca e Sviluppo
Trend Servizi Srl
Tel: 0376/631761
Web: <a class="moz-txt-link-freetext" href="https://www.trendservizi.it" moz-do-not-send="true">https://www.trendservizi.it</a></pre>
      <br>
      <fieldset class="mimeAttachmentHeader"></fieldset>
      <br>
      <pre wrap="">_______________________________________________
Gluster-users mailing list
<a class="moz-txt-link-abbreviated" href="mailto:Gluster-users@gluster.org">Gluster-users@gluster.org</a>
<a class="moz-txt-link-freetext" href="http://lists.gluster.org/mailman/listinfo/gluster-users">http://lists.gluster.org/mailman/listinfo/gluster-users</a></pre>
    </blockquote>
    <br>
    <pre class="moz-signature" cols="72">-- 
Ing. Luca Lazzeroni
Responsabile Ricerca e Sviluppo
Trend Servizi Srl
Tel: 0376/631761
Web: <a class="moz-txt-link-freetext" href="https://www.trendservizi.it">https://www.trendservizi.it</a></pre>
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