<div dir="ltr"><br><div class="gmail_extra"><br><div class="gmail_quote">On 17 January 2018 at 16:04, Ing. Luca Lazzeroni - Trend Servizi Srl <span dir="ltr">&lt;<a href="mailto:luca@trendservizi.it" target="_blank">luca@trendservizi.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>Here&#39;s the volume info:</p>
    <p> <br>
      Volume Name: gv2a2<br>
      Type: Replicate<br>
      Volume ID: 83c84774-2068-4bfc-b0b9-<wbr>3e6b93705b9f<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_<wbr>brick_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-<wbr>algorithm: 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>
    </p>
    <p>The only client I&#39;m using is FUSE client used to mount the
      gluster volume. On the gluster volume there is a maximum of 15
      files (&quot;big&quot; files because they host VM images) accessed by
      qemu-kvm as normal files on the FUSE mounted volume.</p>
    <p>By inspecting the code I&#39;ve found that the message is logged in 2
      situations: <br>
    </p>
    <p>1) A real &quot;Hole&quot; in DHT</p>
    <p>2) A &quot;virgin&quot; file being created</p>
    <p>I think this is the second situation because that message appears
      only when I create a new qcow2 volume to host VM image.</p><div><div class="h5">
    <p><span style="color:rgb(34,34,34)"></span></p></div></div></div></blockquote><div> These messages should ideally be seen only for directories and I have never seen it with a null gfid so far. I&#39;ll try to reproduce this and get back to you.</div><div><br></div><div>Regards,</div><div>Nithya</div><div> </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="h5">
    <div class="m_-274641169728427609moz-cite-prefix">Il 17/01/2018 04:54, Nithya
      Balachandran ha scritto:<br>
    </div>
    <blockquote type="cite">
      <div dir="ltr">
        <div>Hi,</div>
        <div><br>
        </div>
        <div class="gmail_extra"><br>
          <div class="gmail_quote">On 16 January 2018 at 18:56, Ing.
            Luca Lazzeroni - Trend Servizi Srl <span dir="ltr">&lt;<a href="mailto:luca@trendservizi.it" target="_blank">luca@trendservizi.it</a>&gt;</span>
            wrote:<br>
            <blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">Hi,<br>
              <br>
              I&#39;m testing gluster 3.12.4 and, by inspecting log files
              /var/log/glusterfs/mnt-gv0.log (gv0 is the volume name), I
              found many lines saying:<br>
              <br>
              [2018-01-15 09:45:41.066914] I [MSGID: 109063]
              [dht-layout.c:716:dht_layout_n<wbr>ormalize] 0-gv0-dht:
              Found anomalies in (null) (gfid =
              00000000-0000-0000-0000-000000<wbr>000000). Holes=1
              overlaps=0<br>
              [2018-01-15 09:45:45.755021] I [MSGID: 109063]
              [dht-layout.c:716:dht_layout_n<wbr>ormalize] 0-gv0-dht:
              Found anomalies in (null) (gfid =
              00000000-0000-0000-0000-000000<wbr>000000). Holes=1
              overlaps=0<br>
              [2018-01-15 14:02:29.171437] I [MSGID: 109063]
              [dht-layout.c:716:dht_layout_n<wbr>ormalize] 0-gv0-dht:
              Found anomalies in (null) (gfid =
              00000000-0000-0000-0000-000000<wbr>000000). Holes=1
              overlaps=0<br>
              <br>
              What do they mean ? Is there any real problem ?<br>
              <br>
            </blockquote>
            <div><br>
            </div>
            Please provide the following details:</div>
          <div class="gmail_quote">gluster volume info</div>
          <div class="gmail_quote">what clients you are using and what
            operations being performed
            <div>Any steps to reproduce this issue.</div>
            <div><br>
            </div>
            <div>Thanks,</div>
            <div>Nithya</div>
            <div><br>
            </div>
            <blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
              Thank you,<span class="m_-274641169728427609gmail-HOEnZb"><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">https://www.trendservizi.it</a><br>
                  <br>
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                </font></span></blockquote>
          </div>
          <br>
        </div>
      </div>
    </blockquote>
    <br>
    <pre class="m_-274641169728427609moz-signature" cols="72">-- 
Ing. Luca Lazzeroni
Responsabile Ricerca e Sviluppo
Trend Servizi Srl
Tel: 0376/631761
Web: <a class="m_-274641169728427609moz-txt-link-freetext" href="https://www.trendservizi.it" target="_blank">https://www.trendservizi.it</a></pre>
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