Re: [Users] custom nfs mount options

Thursday, 24 January 2013

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Hi guys,

I remember asking the same thing a couple of weeks ago. Itamar answered 
to be the same, should check the vdsm.conf file for nfs mount options. 
Because I did not had the time to do test this until now, I return with 
the test results.

Well Alex it seems to be right, on the 3.1 version, if you go and edit 
the /etc/vdsm/vdsm.conf file, on line 146, I uncommented the 
nfs_mount_options parameter and changed it to :

nfs_mount_options = soft,nosharecache,noatime,rsize=8192,wsize=8192

Went in Ovirt interface, put the node from Hosts tab into Maintenance, 
so that the ISO domain and Master Domain will get unmounted 
automatically; restarted the vdsm service on the hypervisior server and 
activate the node back from GUI. Upon mount command, there is no change 
or difference between what I have added and what was configured 
automatically before.

  type nfs 
(rw,soft,nosharecache,timeo=10,retrans=6,vers=4,addr=x.x.x.x,clientaddr=x.x.x.x)

Might this be a bug on vdsm to be fixed ?

Alex.

On 01/24/2013 01:45 PM, Alex Leonhardt wrote:
...
 So I've tried some bits Itamar asked me to - however, still get
the 
 same mount options shown.

 I tried "service vdsmd reconfigure; service vdsmd restart" - the mount 
 for HV03:/vmfs/data should now have the new mount options, but no luck.

 Anyone time to help ?

 Alex

 On 24 January 2013 10:54, Alex Leonhardt <alex.tuxx(a)gmail.com 
 <mailto:alex.tuxx@gmail.com>> wrote:

     I've got now :

     nfs_mount_options = soft,nosharecache,rsize=32768,wsize=32768,noatime

     However, when I check the mounts on the host, it does not show
     these addtitional options used ? (only soft,nosharecache), here
     the mount output:

     HV02:/vmfs/data.old2 on /rhev/data-center/mnt/HV02:_vmfs_data.old2
     type nfs
     (rw,soft,nosharecache,timeo=600,retrans=6,nfsvers=3,addr=x.x.x8)
     HV02:/vmfs/data on /rhev/data-center/mnt/HV02:_vmfs_data type nfs
     (rw,soft,nosharecache,timeo=600,retrans=6,vers=3,addr=x.x.x8)
     HV03:/vmfs/data on /rhev/data-center/mnt/HV03:_vmfs_data type nfs
     (rw,soft,nosharecache,timeo=600,retrans=6,nfsvers=3,addr=127.0.0.1)

     Above is after I restarted HV03 so it really should have mounted
     HV03:/vmfs/data with the new options

     another question would be if "nolock" would be a good idea as it
     seems that nfs ops are sometimes being blocked by a lock ? at
     least, it behaves as if .. i havent further investigated yet.

     Alex

     On 23 January 2013 13:27, Itamar Heim <iheim(a)redhat.com
     <mailto:iheim@redhat.com>> wrote:

         On 22/01/2013 11:43, Haim Ateya wrote:

             you can set it manually on each hypervisor by using vdsm.conf.

             add the following into /etc/vdsm/vdsm.conf

             [irs]
             nfs_mount_options = soft,nosharecache

             restart vdsmd service on the end.

         you can also set them via a posixfs storage domain, but for
         nfs, an nfs storage domain is recommended over a posixfs one.
         question is what is the use case for them, and should they be
         added for nfs domains as well.

             ----- Original Message -----

                 From: "Alex Leonhardt" <alex.tuxx(a)gmail.com
                 <mailto:alex.tuxx@gmail.com>>
                 To: "oVirt Mailing List" <users(a)ovirt.org
                 <mailto:users@ovirt.org>>
                 Sent: Tuesday, January 22, 2013 1:46:56 AM
                 Subject: [Users] custom nfs mount options

                 Hi,

                 Is it possible set custom nfs mount options,
                 specifically : noatime,
                 wsize and rsize ? I couldnt see anything when "adding
                 a NFS domain"
                 - only timeout & retry.

                 Thanks!
                 Alex

                 --

                 | RHCE | Senior Systems Engineer | www.vcore.co
                 <http://www.vcore.co> |
                 | www.vsearchcloud.com <http://www.vsearchcloud.com> |

                 _______________________________________________
                 Users mailing list
                 Users(a)ovirt.org <mailto:Users@ovirt.org>
                 http://lists.ovirt.org/mailman/listinfo/users

             _______________________________________________
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             http://lists.ovirt.org/mailman/listinfo/users

     -- 

     | RHCE | Senior Systems Engineer | www.vcore.co
     <http://www.vcore.co> | www.vsearchcloud.com
     <http://www.vsearchcloud.com> |

 -- 

 | RHCE | Senior Systems Engineer | www.vcore.co <http://www.vcore.co> 
 | www.vsearchcloud.com <http://www.vsearchcloud.com> |

 _______________________________________________
 Users mailing list
 Users(a)ovirt.org
 http://lists.ovirt.org/mailman/listinfo/users 

-- 
Alexandru Vladulescu
System Engineer
---------------------------------------------------------------------------------
Bright Future Project Romania
Skype :   avladulescu
Mobile :  +4(0)726.373.098
---------------------------------------------------------------------------------

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    <div class="moz-cite-prefix"><br>
      Hi guys,<br>
      <br>
      I remember asking the same thing a couple of weeks ago. Itamar
      answered to be the same, should check the vdsm.conf file for nfs
      mount options. Because I did not had the time to do test this
      until now, I return with the test results.<br>
      <br>
      Well Alex it seems to be right, on the 3.1 version, if you go and
      edit the /etc/vdsm/vdsm.conf file, on line 146, I uncommented the
      nfs_mount_options parameter and changed it to :<br>
      <br>
      nfs_mount_options =
      soft,nosharecache,noatime,rsize=8192,wsize=8192<br>
      <br>
      Went in Ovirt interface, put the node from Hosts tab into
      Maintenance, so that the ISO domain and Master Domain will get
      unmounted automatically; restarted the vdsm service on the
      hypervisior server and activate the node back from GUI. Upon mount
      command, there is no change or difference between what I have
      added and what was configured automatically before.<br>
      <br>
      &nbsp;type nfs
(rw,soft,nosharecache,timeo=10,retrans=6,vers=4,addr=x.x.x.x,clientaddr=x.x.x.x)<br>
      <br>
      Might this be a bug on vdsm to be fixed ?<br>
      <br>
      Alex.<br>
      <br>
      <br>
      On 01/24/2013 01:45 PM, Alex Leonhardt wrote:<br>
    </div>
    <blockquote
cite="mid:CAH4_GUuGd_uaMELPFkOJo3_a1SPo8rzr6za2crVypN4i2Di50A@mail.gmail.com"
      type="cite">
      <div dir="ltr">
        <div>
          <div>So I've tried some bits Itamar asked me to - however,
            still get the same mount options shown. <br>
            <br>
          </div>
          I tried "service vdsmd reconfigure; service vdsmd restart" -
          the mount for HV03:/vmfs/data should now have the new mount
          options, but no luck. <br>
          <br>
        </div>
        Anyone time to help ? <br>
        <br>
        Alex<br>
        <br>
      </div>
      <div class="gmail_extra"><br>
        <br>
        <div class="gmail_quote">On 24 January 2013 10:54, Alex
          Leonhardt <span dir="ltr">&lt;<a
moz-do-not-send="true"
              href="mailto:alex.tuxx@gmail.com"
target=&quot;_blank&quot;&gt;alex.tuxx(a)gmail.com&lt;/a&gt;&amp;gt;&lt;/span&gt;
          wrote:<br>
          <blockquote class="gmail_quote" style="margin:0 0 0
            .8ex;border-left:1px #ccc solid;padding-left:1ex">
            <div dir="ltr">
              <div>
                <div>
                  <div>I've got now : <br>
                    <br>
                    nfs_mount_options =
                    soft,nosharecache,rsize=32768,wsize=32768,noatime<br>
                    <br>
                    <br>
                  </div>
                  However, when I check the mounts on the host, it does
                  not show these addtitional options used ? (only
                  soft,nosharecache), here the mount output: <br>
                  <br>
                  HV02:/vmfs/data.old2 on
                  /rhev/data-center/mnt/HV02:_vmfs_data.old2 type nfs

(rw,soft,nosharecache,timeo=600,retrans=6,nfsvers=3,addr=x.x.x8)<br>
                  HV02:/vmfs/data on
                  /rhev/data-center/mnt/HV02:_vmfs_data type nfs
                  (rw,soft,nosharecache,timeo=600,retrans=6,vers=3,addr=x.x.x8)<br>
                  HV03:/vmfs/data on
                  /rhev/data-center/mnt/HV03:_vmfs_data type nfs

(rw,soft,nosharecache,timeo=600,retrans=6,nfsvers=3,addr=127.0.0.1)<br>
                  <br>
                </div>
                <div>Above is after I restarted HV03 so it really should
                  have mounted HV03:/vmfs/data with the new options<br>
                  <br>
                </div>
                another question would be if "nolock" would be a good
                idea as it seems that nfs ops are sometimes being
                blocked by a lock ? at least, it behaves as if .. i
                havent further investigated yet. <br>
                <span class="HOEnZb"><font
color="#888888"><br>
                  </font></span></div>
              <span class="HOEnZb"><font color="#888888">
                  Alex<br>
                  <br>
                  <div><br>
                    <br>
                  </div>
                </font></span></div>
            <div class="HOEnZb">
              <div class="h5">
                <div class="gmail_extra"><br>
                  <br>
                  <div class="gmail_quote">On 23 January 2013 13:27,
                    Itamar Heim <span dir="ltr">&lt;<a
                        moz-do-not-send="true"
                        href="mailto:iheim@redhat.com"
target=&quot;_blank&quot;&gt;iheim(a)redhat.com&lt;/a&gt;&amp;gt;&lt;/span&gt;
                    wrote:<br>
                    <blockquote class="gmail_quote" style="margin:0 0 0
                      .8ex;border-left:1px #ccc solid;padding-left:1ex">
                      <div>On 22/01/2013 11:43, Haim Ateya wrote:<br>
                        <blockquote class="gmail_quote" style="margin:0
                          0 0 .8ex;border-left:1px #ccc
                          solid;padding-left:1ex">
                          you can set it manually on each hypervisor by
                          using vdsm.conf.<br>
                          <br>
                          add the following into /etc/vdsm/vdsm.conf<br>
                          <br>
                          [irs]<br>
                          nfs_mount_options = soft,nosharecache<br>
                          <br>
                          restart vdsmd service on the end.<br>
                        </blockquote>
                        <br>
                      </div>
                      you can also set them via a posixfs storage
                      domain, but for nfs, an nfs storage domain is
                      recommended over a posixfs one.<br>
                      question is what is the use case for them, and
                      should they be added for nfs domains as well.
                      <div>
                        <div><br>
                          <br>
                          <blockquote class="gmail_quote"
                            style="margin:0 0 0 .8ex;border-left:1px
                            #ccc solid;padding-left:1ex">
                            <br>
                            ----- Original Message -----<br>
                            <blockquote class="gmail_quote"
                              style="margin:0 0 0 .8ex;border-left:1px
                              #ccc solid;padding-left:1ex">
                              From: "Alex Leonhardt" &lt;<a
                                moz-do-not-send="true"
                                href="mailto:alex.tuxx@gmail.com"

target=&quot;_blank&quot;&gt;alex.tuxx(a)gmail.com&lt;/a&gt;&amp;gt;&lt;br&gt;
                              To: "oVirt Mailing List" &lt;<a
                                moz-do-not-send="true"
                                href="mailto:users@ovirt.org"

target=&quot;_blank&quot;&gt;users(a)ovirt.org&lt;/a&gt;&amp;gt;&lt;br&gt;
                              Sent: Tuesday, January 22, 2013 1:46:56 AM<br>
                              Subject: [Users] custom nfs mount options<br>
                              <br>
                              <br>
                              <br>
                              <br>
                              <br>
                              Hi,<br>
                              <br>
                              Is it possible set custom nfs mount
                              options, specifically : noatime,<br>
                              wsize and rsize ? I couldnt see anything
                              when "adding a NFS domain"<br>
                              - only timeout &amp; retry.<br>
                              <br>
                              <br>
                              Thanks!<br>
                              Alex<br>
                              <br>
                              <br>
                              <br>
                              <br>
                              <br>
                              --<br>
                              <br>
                              <br>
                              <br>
                              | RHCE | Senior Systems Engineer | <a
                                moz-do-not-send="true"
                                href="http://www.vcore.co"
                                target="_blank">www.vcore.co</a>
|<br>
                              | <a moz-do-not-send="true"
                                href="http://www.vsearchcloud.com"

target="_blank">www.vsearchcloud.com</a>
                              |<br>
                              <br>
                              _______________________________________________<br>
                              Users mailing list<br>
                              <a moz-do-not-send="true"
                                href="mailto:Users@ovirt.org"

target=&quot;_blank&quot;&gt;Users(a)ovirt.org&lt;/a&gt;&lt;br&gt;
                              <a moz-do-not-send="true"

href="http://lists.ovirt.org/mailman/listinfo/users"

target="_blank">http://lists.ovirt.org/mailman/listinfo/user...
                              <br>
                            </blockquote>
                            _______________________________________________<br>
                            Users mailing list<br>
                            <a moz-do-not-send="true"
                              href="mailto:Users@ovirt.org"

target=&quot;_blank&quot;&gt;Users(a)ovirt.org&lt;/a&gt;&lt;br&gt;
                            <a moz-do-not-send="true"

href="http://lists.ovirt.org/mailman/listinfo/users"

target="_blank">http://lists.ovirt.org/mailman/listinfo/user...
                            <br>
                          </blockquote>
                          <br>
                        </div>
                      </div>
                    </blockquote>
                  </div>
                  <br>
                  <br clear="all">
                  <br>
                  -- <br>
                  <div dir="ltr">
                    <div><br>
                    </div>
                    | RHCE | Senior Systems Engineer | <a
                      moz-do-not-send="true"
href="http://www.vcore.co"
                      target="_blank">www.vcore.co</a> | <a
                      moz-do-not-send="true"
                      href="http://www.vsearchcloud.com"
target="_blank">www.vsearchcloud.com</a>
                    | <br>
                  </div>
                </div>
              </div>
            </div>
          </blockquote>
        </div>
        <br>
        <br clear="all">
        <br>
        -- <br>
        <div dir="ltr">
          <div><br>
          </div>
          | RHCE | Senior Systems Engineer | <a moz-do-not-send="true"
            href="http://www.vcore.co"
target="_blank">www.vcore.co</a>
          | <a moz-do-not-send="true"
            href="http://www.vsearchcloud.com"
target="_blank">www.vsearchcloud.com</a>
          | <br>
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      <pre wrap="">_______________________________________________
Users mailing list
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    <pre class="moz-signature" cols="72">-- 
Alexandru Vladulescu
System Engineer
---------------------------------------------------------------------------------
Bright Future Project Romania
Skype :   avladulescu
Mobile :  +4(0)726.373.098
---------------------------------------------------------------------------------
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