[one-users] admin/host on the same physical machine issues

[Ruben S. Montero]

Thanks Damien!!!
We'll put this in the known issues for CentOS, and also a general warning in 
the sudo configuration steps.


On Saturday 21 February 2009 00:48:35 Damien Cerbelaud wrote:
> I finally realized where my problem came from. I put a trace in the
> mailing list so that everyone else can benefit from it.
>
> Basically, CentOS has an option in the /etc/sudoers file that can
> conflict with an ssh connection. Just comment out the
>
> Default requiretty
>
> option, and the xen.rb monitoring script runs smoothly !
>
> On Thu, Feb 19, 2009 at 8:47 AM, Damien Cerbelaud <dcerbelaud at gmail.com> 
wrote:
> > I can connect from the machine to itself via ssh, passwordless. I was
> > supposing that there might be some issues with the initial ruby script
> > trying to run another ruby script through an open ssh connection....
> > Maybe there's a security routine preventing it. The oned.log file
> > shows "Host 0 successfully monitored" though.
> >
> > On Thu, Feb 19, 2009 at 12:13 AM, Raul Sampedro <raul.sampedro at gmail.com> 
wrote:
> >> Hello Damien,
> >>
> >> As you say, its a monitoring problem, have you tried to connect via
> >> ssh to the machine opennebula from your frontend?, probably yo need to
> >> create ssh-keys for first time.
> >>
> >> cheers
> >>
> >> On Thu, Feb 19, 2009 at 12:36 AM, Damien Cerbelaud <dcerbelaud at gmail.com> 
wrote:
> >>> Hi,
> >>>
> >>> I installed the one admin on the physical machine (CentOS 5.2) that
> >>> also serves as my first node.
> >>> I configured ssh correctly, and can add the host using 'onehost
> >>> create'. However, monitoring fails to retrieve information from the
> >>> host, though the scripts are correctly copied to REMOTE_DIR, but not
> >>> executed
> >>>
> >>> [oneadmin at opennebula ~]$ onehost list
> >>>  HID NAME                      RVM   TCPU   FCPU   ACPU    TMEM    FMEM
> >>> STAT 1 opennebula                  0             0          0
> >>> 100                                 on
> >>>
> >>> When I enter onehost show opennebula, I have more information, but
> >>> still some parameters are missing:
> >>>
> >>> [oneadmin at opennebula ~]$ onehost show opennebula
> >>> HID      = 1
> >>> HOSTNAME = opennebula
> >>> IM MAD   = im_xen
> >>> VMM MAD  = vmm_xen
> >>> TM MAD   = tm_ssh
> >>> MANAGED  = 1
> >>> ATTRIBUTES
> >>>
> >>>      ARCH=i686
> >>>      HOSTNAME=opennebula
> >>>      MODELNAME=Intel(R) Xeon(R) CPU           E5320  @ 1.86GHz
> >>> HOST SHARES
> >>>      HID          = 1
> >>>      ENDPOINT     =
> >>>      MAX_CPU      = 0
> >>>      MAX_MEMORY   = 0
> >>>      MAX_DISK     = 0
> >>>      CPU_USAGE    = 0
> >>>      MEMORY_USAGE = 0
> >>>      DISK_USAGE   = 0
> >>>      RUNNING_VMS  = 0
> >>>
> >>> Is it normal? Or do I have to install the administration node on a
> >>> different physical machine?
> >>>
> >>> Thanks!
> >>>
> >>> Damien
> >>> _______________________________________________
> >>> Users mailing list
> >>> Users at lists.opennebula.org
> >>> http://lists.opennebula.org/listinfo.cgi/users-opennebula.org
>
> _______________________________________________
> Users mailing list
> Users at lists.opennebula.org
> http://lists.opennebula.org/listinfo.cgi/users-opennebula.org

-- 
+---------------------------------------------------------------+
 Dr. Ruben Santiago Montero
 Associate Professor
 Distributed System Architecture Group (http://dsa-research.org)

 URL:    http://dsa-research.org/doku.php?id=people:ruben
 Weblog: http://blog.dsa-research.org/?author=7
             
 GridWay, http://www.gridway.org
 OpenNEbula, http://www.opennebula.org
+---------------------------------------------------------------+