[Swift-devel] [ZeptoOS] hostname returns none in Surveyor

Sun Mar 4 10:24:38 CST 2012

Zhao,

Can you tell us if the nodes on the torus network are accessed over the 192.168 network? I just realized they cant all be on the 192.168.1 subnet, so I hope I suggested the right network here.

Thanks,

- Mike

----- Original Message -----
> From: "Emalayan Vairavanathan" <svemalayan at yahoo.com>
> To: swift-devel at ci.uchicago.edu
> Sent: Sunday, March 4, 2012 1:40:53 AM
> Subject: Re: [Swift-devel] [ZeptoOS] hostname returns none in Surveyor
> Thank you very much Mike. I agree with you suggestion. I can do that
> in worker.pl.
> 
> 
> Thank you
> Emalayan
> 
> 
> 
> 
> 
> 
> From: Michael Wilde <wilde at mcs.anl.gov>
> To: emalayan at ece.ubc.ca
> Cc: swift-devel <swift-devel at ci.uchicago.edu>
> Sent: Saturday, 3 March 2012 7:39 PM
> Subject: Re: [Swift-devel] [ZeptoOS] hostname returns none in Surveyor
> 
> Emalayan,
> 
> I wasnt paying much attention to the actual IP address returned by
> hostname in the zeptoos profile.
> 
> Since these are the addresses that Mosa will communicate over, I think
> you *do* want them to be the 192.168.1.* addresses of the nodes on the
> torus network (in other words tun0).
> 
> So, since both profiles return 192.168.1.64 for the tun0 IP, I think
> thats what you should use. So try replacing `hostname` in worker.pl
> with something like:
> 
> `ifconfig | grep 192.168 | sed -e 's/^inet addr://' -e 's/ .*//'`
> 
> You may have to adapt this a bit to meet your needs. Im assuming that
> the only code that will uses these IPs is MosaStore.
> 
> - Mike
> 
> 
> ----- Original Message -----
> > From: "Kazutomo Yoshii" < kazutomo at mcs.anl.gov >
> > To: zeptoos at lists.mcs.anl.gov
> > Sent: Saturday, March 3, 2012 8:52:00 PM
> > Subject: Re: [ZeptoOS] hostname returns none in Surveyor
> > Hi Emalayan,
> >
> > The zeptoos profile returns the IP address of associated I/O node,
> > which is kind of wrong in my opinion (influence of IBM CNK).
> > ifconfig on compute nodes returns CN's IP address, which is correct.
> > e.g. tun0 192.168.1.64
> >
> > If you want to find associated ION's IP address from CNs,
> > do something like this.
> >
> > $ grep BG_IP= /proc/personality.sh
> >
> > - kaz
> >
> > On 03/03/2012 08:25 PM, Emalayan Vairavanathan wrote:
> > > Hi All,
> > >
> > > I am trying to run some experiments in Surveyor. The software I am
> > > using
> > > gets the IP-address of compute-nodes using hostname command.
> > >
> > > With zepto-vn-eval/mosatest profile hostname command returns none.
> > > But with zeptoos profile hostname returns the correct IP address.
> > >
> > > Is this due to some configuration issues in zepto-vn-eval/mosatest
> > > profile?As a workaround I tired to use ifconfig with both
> > > profiles,
> > > but
> > > it seems ifconfig is not returning the correct IP address.
> > >
> > > Is there any command / files which I can used to retrieve the
> > > hostname
> > > on compute nodes? I have pasted the console output with both
> > > profiles
> > > below. Please let me know if you need more details.
> > >
> > > Thank you
> > > Emalayan
> > >
> > >
> > > =======================With zeptoos profile
> > > ===============================
> > >
> > > / # hostname
> > > 172.18.3.19
> > > / #
> > > / # cat /proc/sys/kernel/hostname
> > > 172.18.3.19
> > > / #
> > > / #
> > > / # ifconfig -a
> > > lo Link encap:Local Loopback
> > > inet addr:127.0.0.1 Mask:255.0.0.0
> > > UP LOOPBACK RUNNING MTU:16436 Metric:1
> > > RX packets:0 errors:0 dropped:0 overruns:0 frame:0
> > > TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
> > > collisions:0 txqueuelen:0
> > > RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)
> > >
> > > tun0 Link encap:UNSPEC HWaddr
> > > 00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00
> > > inet addr:192.168.1.64 P-t-P:192.168.1.254 Mask:255.255.255.255
> > > UP POINTOPOINT RUNNING NOARP MULTICAST MTU:65535 Metric:1
> > > RX packets:2662 errors:0 dropped:0 overruns:0 frame:0
> > > TX packets:1772 errors:0 dropped:0 overruns:0 carrier:0
> > > collisions:0 txqueuelen:500
> > > RX bytes:140206 (136.9 KiB) TX bytes:125412 (122.4 KiB)
> > >
> > >
> > >
> > > =======================With zepto-vn-eval/mosatest profile
> > > ===============================
> > >
> > > /etc # hostname
> > > (none)
> > > /etc #
> > > /etc # cat /proc/sys/kernel/hostname
> > > (none)
> > > /etc #
> > > /etc # ifconfig -a
> > > eth0 Link encap:Ethernet HWaddr 00:80:46:00:00:00
> > > BROADCAST MULTICAST MTU:1500 Metric:1
> > > RX packets:0 errors:0 dropped:0 overruns:0 frame:0
> > > TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
> > > collisions:0 txqueuelen:1000
> > > RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)
> > >
> > > eth1 Link encap:Ethernet HWaddr 00:80:47:00:00:00
> > > BROADCAST MULTICAST MTU:1500 Metric:1
> > > RX packets:0 errors:0 dropped:0 overruns:0 frame:0
> > > TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
> > > collisions:0 txqueuelen:1000
> > > RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)
> > >
> > > lo Link encap:Local Loopback
> > > inet addr:127.0.0.1 Mask:255.0.0.0
> > > inet6 addr: ::1/128 Scope:Host
> > > UP LOOPBACK RUNNING MTU:16436 Metric:1
> > > RX packets:0 errors:0 dropped:0 overruns:0 frame:0
> > > TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
> > > collisions:0 txqueuelen:0
> > > RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)
> > >
> > > sit0 Link encap:IPv6-in-IPv4
> > > NOARP MTU:1480 Metric:1
> > > RX packets:0 errors:0 dropped:0 overruns:0 frame:0
> > > TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
> > > collisions:0 txqueuelen:0
> > > RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)
> > >
> > > tun0 Link encap:UNSPEC HWaddr
> > > 00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00
> > > inet addr:192.168.1.64 P-t-P:192.168.1.254 Mask:255.255.255.255
> > > UP POINTOPOINT RUNNING NOARP MULTICAST MTU:65535 Metric:1
> > > RX packets:965 errors:0 dropped:0 overruns:0 frame:0
> > > TX packets:627 errors:0 dropped:0 overruns:0 carrier:0
> > > collisions:0 txqueuelen:500
> > > RX bytes:50984 (49.7 KiB) TX bytes:50530 (49.3 KiB)
> > >
> 
> --
> Michael Wilde
> Computation Institute, University of Chicago
> Mathematics and Computer Science Division
> Argonne National Laboratory
> 
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-- 
Michael Wilde
Computation Institute, University of Chicago
Mathematics and Computer Science Division
Argonne National Laboratory