Hi María,<br><br>That's weird, did the output of sudo /usr/sbin/xentop -bi2 change? Can you please check that?<br><br>We'd be grateful if you could provide your installation details, so we can try to replicate the problem.<br>

Which distro., xen version, installation method (official repository, or from source...), and any other xen configuration you can think of.<br><br>Thanks,<br>Carlos.<br clear="all"><span style="border-collapse:collapse;color:rgb(136, 136, 136);font-family:arial, sans-serif;font-size:13px">--<br>

Carlos Martín, MSc<br>Project Major Contributor<br><span style="background-color:rgb(255, 255, 204);color:rgb(34, 34, 34);background-repeat:initial initial">OpenNebula</span> - The Open Source Toolkit for Cloud Computing<br>

<a href="http://www.opennebula.org/" style="color:rgb(42, 93, 176)" target="_blank">www.<span style="background-color:rgb(255, 255, 204);color:rgb(34, 34, 34);background-repeat:initial initial">OpenNebula</span>.org</a> | <a href="mailto:cmartin@opennebula.org" style="color:rgb(42, 93, 176)" target="_blank">cmartin@<span style="background-color:rgb(255, 255, 204);color:rgb(34, 34, 34);background-repeat:initial initial">opennebula</span>.org</a></span><br>


<br><br><div class="gmail_quote">2011/6/22 María Pérez <span dir="ltr"><<a href="mailto:maria@caton.es">maria@caton.es</a>></span><br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">

<u></u>

  
    
  
  <div text="#000000" bgcolor="#ffffff">
    <br>
    Hi Carlos,<br>
    <br>
    I have checked the directory /var/tmp/one/vmm/xen in the nodes and
    /$ONE_LOCATION/var/remotes/vmm/xen in the front-end, the content of
    both is the same. This means that the update has been made correctly
    in the nodes.<br>
    <br>
    I have looked in log file the error before the update and it is
    different. The messages are the following, in case they can help.<br>
    <br>
    <b>BEFORE</b><div class="im"><br>
    Error executing sudo /usr/sbin/xentop -bi2<br></div><div class="im">
    /var/tmp/one/vmm/xen/poll:186:in `[]': can't convert String into
    Integer (TypeError)<br></div><div class="im">
    from /var/tmp/one/vmm/xen/poll:186:in `get_vm_info'<br></div><div class="im">
    from /var/tmp/one/vmm/xen/poll:314:in `print_one_vm_info'<br>
    from /var/tmp/one/vmm/xen/poll:348<br></div>
    ExitCode: 1<div class="im"><br>
    Error monitoring VM, Error executing sudo /usr/sbin/xentop -bi2<br>
    <br>
    </div><b>AFTER</b><div class="im"><br>
    Error executing sudo /usr/sbin/xentop -bi2<br>
    /var/tmp/one/vmm/xen/poll:186:in `get_vm_info': undefined method
    `[]' for nil:NilClass (NoMethodError)<br>
    from /var/tmp/one/vmm/xen/poll:314:in `print_one_vm_info'<br>
    from /var/tmp/one/vmm/xen/poll:348<br></div>
    ExitCode: 1<div class="im"><br>
    Error monitoring VM, Error executing sudo /usr/sbin/xentop -bi2<br>
    <br>
    <br></div>
    You can say to me if I can test some to help in this.<div class="im"><br>
    Thank you very much in advance.<br></div>
    Regards,<br>
    María<br>
    <br>
    <br>
    <br>
    El 21/06/11 13:54, Carlos Martín Sánchez escribió:
    <div><div></div><div class="h5"><blockquote type="cite">Hi,<br>
      <br>
      Maybe the problem is that OpenNebula copies updated files when the
      monitorization takes place.<br>
      Could you please check that /var/tmp/one/vmm/xen/poll in your
      remote host has the updated code?<br>
      <br>
      Anyway, we are going to test this issue in our local
      infrastructure, hopefully we'll come up with a fix soon.<br>
      <br>
      Regards.<br>
      <span style="border-collapse:collapse;color:rgb(136, 136, 136);font-family:arial,sans-serif;font-size:13px">--<br>
        Carlos Martín, MSc<br>
        Project Major Contributor<br>
        <span style="background-color:rgb(255, 255, 204);color:rgb(34, 34, 34)">OpenNebula</span> - The Open Source Toolkit
        for Cloud Computing<br>
        <a href="http://www.opennebula.org/" style="color:rgb(42, 93, 176)" target="_blank">www.<span style="background-color:rgb(255, 255, 204);color:rgb(34, 34, 34)">OpenNebula</span>.org</a> | <a href="mailto:cmartin@opennebula.org" style="color:rgb(42, 93, 176)" target="_blank">cmartin@<span style="background-color:rgb(255, 255, 204);color:rgb(34, 34, 34)">opennebula</span>.org</a></span><br>


      <br>
      <br>
      <div class="gmail_quote">2011/6/20 María Pérez <span dir="ltr"><<a href="mailto:maria@caton.es" target="_blank">maria@caton.es</a>></span><br>
        <blockquote class="gmail_quote" style="margin:0pt 0pt 0pt 0.8ex;border-left:1px solid rgb(204, 204, 204);padding-left:1ex">
          <div text="#000000" bgcolor="#ffffff"> <br>
            Hi Carlos,<br>
            <br>
            Before anything else, sorry for the delay in my answer.I
            have been very busy this past month and I haven't been able
            to test the patch that you prepared to solve the monitoring
            problem. <br>
            <br>
            Finally last week I tested the patch but the monitoring
            problems continue although the machines no longer happen to
            unknown state. I have executed from line of commands but the
            messages are the same that they appear registered in logs.<br>
            <br>
            [oneadmin@dn07 ~]$ /var/tmp/one/vmm/xen/poll one-28
            <div><br>
              Error executing sudo /usr/sbin/xentop -bi2<br>
            </div>
            /var/tmp/one/vmm/xen/poll:186:in `get_vm_info': undefined
            method `[]' for nil:NilClass (NoMethodError)<br>
                    from /var/tmp/one/vmm/xen/poll:314:in
            `print_one_vm_info'<br>
                    from /var/tmp/one/vmm/xen/poll:348<br>
            <br>
            <br>
            Can you think of any other thing that I could test?<br>
            <br>
            Thank you very much in advance.<br>
            BR,<br>
            <br>
                María<br>
            <br>
            <br>
            <br>
            El 20/05/11 15:52, Carlos Martín Sánchez escribió:
            <div>
              <div>
                <blockquote type="cite">Hi again,<br>
                  <br>
                  The script was discarding the first lines, because
                  other versions include some information about the
                  system before the list of domains.<br>
                  Please try the patch attached in this new ticket:<br>
                  <a href="http://dev.opennebula.org/issues/656" target="_blank">http://dev.opennebula.org/issues/656</a><br>
                  <br>
                  Thank you,<br>
                  Carlos.<br>
                  <br clear="all">
                  <span style="border-collapse:collapse;color:rgb(136, 136, 136);font-family:arial,sans-serif;font-size:13px">--<br>
                    Carlos Martín, MSc<br>
                    Project Major Contributor<br>
                    <span style="background-color:rgb(255, 255, 204);color:rgb(34, 34, 34)">OpenNebula</span> - The
                    Open Source Toolkit for Cloud Computing<br>
                    <a href="http://www.opennebula.org/" style="color:rgb(42, 93, 176)" target="_blank">www.<span style="background-color:rgb(255, 255, 204);color:rgb(34, 34, 34)">OpenNebula</span>.org</a> | <a href="mailto:cmartin@opennebula.org" style="color:rgb(42, 93, 176)" target="_blank">cmartin@<span style="background-color:rgb(255, 255, 204);color:rgb(34, 34, 34)">opennebula</span>.org</a></span><br>


                  <br>
                  <br>
                  <div class="gmail_quote">2011/5/20 María Pérez <span dir="ltr"><<a href="mailto:maria@caton.es" target="_blank">maria@caton.es</a>></span><br>
                    <blockquote class="gmail_quote" style="margin:0pt 0pt 0pt 0.8ex;border-left:1px solid rgb(204, 204, 204);padding-left:1ex">
                      <div text="#000000" bgcolor="#ffffff"> <br>
                        Hi Carlos,<br>
                        <br>
                        The output of 'sudo /usr/sbin/xentop -bi2' is:<br>
                        <br>
                        [oneadmin@dn08 ~]$ sudo /usr/sbin/xentop -bi2<br>
                              NAME  STATE   CPU(sec) CPU(%)     MEM(k)
                        MEM(%)  MAXMEM(k) MAXMEM(%) VCPUS NETS NETTX(k)
                        NETRX(k) VBDS   VBD_OO   VBD_RD   VBD_WR SSID<br>
                          Domain-0 -----r         51    0.0   15532060  
                        92.6   no limit       n/a     8    5       
                        0        0    0        0        0        0    0<br>
                            one-44 --b---          1    0.0   
                        1048396    6.2    1048576       6.3     1   
                        1        1    15680    2        0       68     
                        253    0<br>
                              NAME  STATE   CPU(sec) CPU(%)     MEM(k)
                        MEM(%)  MAXMEM(k) MAXMEM(%) VCPUS NETS NETTX(k)
                        NETRX(k) VBDS   VBD_OO   VBD_RD   VBD_WR SSID<br>
                          Domain-0 -----r         51    0.5   15532276  
                        92.6   no limit       n/a     8    5       
                        0        0    0        0        0        0    0<br>
                            one-44 --b---          1    0.1   
                        1048404    6.2    1048576       6.3     1   
                        1        1    15705    2        0       68     
                        253    0<br>
                        <br>
                        <br>
                        This error causes that the VM is not monitored
                        correctly, also the machines happen to unknown
                        state. Do you think that this error will have
                        something to do with the unknown state of the
                        VM?<br>
                        <br>
                        <br>
                        Thank you very much.<br>
                        Regards,<br>
                        María<br>
                        <br>
                        El 20/05/11 14:34, Carlos Martín Sánchez
                        escribió:
                        <div>
                          <div>
                            <blockquote type="cite">Hi María,<br>
                              <br>
                              It looks like the script is not getting
                              the expected output format and fails to
                              parse it.<br>
                              Could you please copy the output of 'sudo
                              /usr/sbin/xentop -bi2', logged as oneadmin
                              in the Host?<br>
                              <br>
                              Regards,<br>
                              Carlos.<br clear="all">
                              <span style="border-collapse:collapse;color:rgb(136, 136, 136);font-family:arial,sans-serif;font-size:13px">--<br>
                                Carlos Martín, MSc<br>
                                Project Major Contributor<br>
                                <span style="background-color:rgb(255, 255, 204);color:rgb(34, 34, 34)">OpenNebula</span> -
                                The Open Source Toolkit for Cloud
                                Computing<br>
                                <a href="http://www.opennebula.org/" style="color:rgb(42, 93, 176)" target="_blank">www.<span style="background-color:rgb(255, 255, 204);color:rgb(34, 34, 34)">OpenNebula</span>.org</a> | <a href="mailto:cmartin@opennebula.org" style="color:rgb(42, 93, 176)" target="_blank">cmartin@<span style="background-color:rgb(255, 255, 204);color:rgb(34, 34, 34)">opennebula</span>.org</a></span><br>


                              <br>
                              <br>
                              <div class="gmail_quote">On Wed, May 18,
                                2011 at 3:07 PM, María Pérez <span dir="ltr"><<a href="mailto:maria@caton.es" target="_blank">maria@caton.es</a>></span>
                                wrote:<br>
                                <blockquote class="gmail_quote" style="margin:0pt 0pt 0pt 0.8ex;border-left:1px solid rgb(204, 204, 204);padding-left:1ex">
                                  <div text="#000000" bgcolor="#ffffff">
                                    Hi again,<br>
                                    <br>
                                    I have another problem with the
                                    monitoring of the machines and the
                                    execution of
                                    /var/tmp/one/vmm/xen/poll.<br>
                                    <br>
                                    The log file contains the following
                                    lines with the error:<br>
                                    <br>
                                    <br>
                                    Command execution fail: 'if [ -x
                                    "/var/tmp/one/vmm/xen/poll" ]; then
                                    /var/tmp/one/vmm/xen/poll one-28;
                                    else                             
                                    exit 42; fi'<br>
                                    Wed May 18 14:48:56 2011 [VMM][I]:
                                    STDERR follows.<br>
                                    Wed May 18 14:48:56 2011 [VMM][I]:
                                    Error executing sudo
                                    /usr/sbin/xentop -bi2<br>
                                    Wed May 18 14:48:56 2011 [VMM][I]:
                                    /var/tmp/one/vmm/xen/poll:186:in
                                    `[]': can't convert String into
                                    Integer (TypeError)<br>
                                    Wed May 18 14:48:56 2011 [VMM][I]:
                                    from
                                    /var/tmp/one/vmm/xen/poll:186:in
                                    `get_vm_info'<br>
                                    Wed May 18 14:48:56 2011 [VMM][I]:
                                    from
                                    /var/tmp/one/vmm/xen/poll:310:in
                                    `print_one_vm_info'<br>
                                    Wed May 18 14:48:56 2011 [VMM][I]:
                                    from /var/tmp/one/vmm/xen/poll:344<br>
                                    Wed May 18 14:48:56 2011 [VMM][I]:
                                    ExitCode: 1<br>
                                    Wed May 18 14:48:56 2011 [VMM][E]:
                                    Error monitoring VM, Error executing
                                    sudo /usr/sbin/xentop -bi2<br>
                                    <br>
                                    <br>
                                    I have tried to execute the commando
                                    from the own node to discard
                                    problems of ssh, but the error
                                    message is the same.<br>
                                    <br>
                                    I have found the following
                                    information <br>
                                    <br>
                                    <a href="http://dev.opennebula.org/issues/567" target="_blank">http://dev.opennebula.org/issues/567</a><br>
                                    <br>
                                    but this patches no solved this
                                    problem.  I have installed
                                    opennebula 2,2 and the nodes are xen
                                    3.4.3<br>
                                    <br>
                                    Any idea? Thank you very much by
                                    your attention.<br>
                                    <br>
                                    Regards,<br>
                                    <br>
                                    María<br>
                                    <br>
                                    <br>
                                    <br>
                                    <br>
                                    <br>
                                    <div>
                                      <table border="0" cellpadding="8" cellspacing="0">
                                        <tbody>
                                          <tr>
                                            <td><br>
                                            </td>
                                            <td><br>
                                            </td>
                                          </tr>
                                          <tr>
                                            <td><br>
                                            </td>
                                            <td><br>
                                            </td>
                                          </tr>
                                          <tr>
                                            <td colspan="2"><br>
                                            </td>
                                          </tr>
                                          <tr>
                                            <td colspan="2"><br>
                                            </td>
                                          </tr>
                                        </tbody>
                                      </table>
                                    </div>
                                  </div>
                                  <br>
_______________________________________________<br>
                                  Users mailing list<br>
                                  <a href="mailto:Users@lists.opennebula.org" target="_blank">Users@lists.opennebula.org</a><br>
                                  <a href="http://lists.opennebula.org/listinfo.cgi/users-opennebula.org" target="_blank">http://lists.opennebula.org/listinfo.cgi/users-opennebula.org</a><br>
                                  <br>
                                </blockquote>
                              </div>
                              <br>
                            </blockquote>
                            <br>
                            <br>
                          </div>
                        </div>
                        <br>
                      </div>
                    </blockquote>
                  </div>
                  <br>
                </blockquote>
                <br>
                <br>
                <br>
              </div>
            </div>
          </div>
        </blockquote>
      </div>
      <br>
    </blockquote>
    <br>
    <br>
    <br>
  </div></div></div>

</blockquote></div><br>