[Beowulf] Fundamental HPC cluster problem

[John Thingstad]

john at Pandora:~$ ip addr
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN 
group default
     link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
     inet 127.0.0.1/8 scope host lo
        valid_lft forever preferred_lft forever
     inet6 ::1/128 scope host
        valid_lft forever preferred_lft forever
2: eth3: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc pfifo_fast 
state DOWN group default qlen 1000
     link/ether 14:cc:20:05:f2:1c brd ff:ff:ff:ff:ff:ff
     inet 192.168.10.1/24 brd 192.168.10.255 scope global eth3
        valid_lft forever preferred_lft forever
3: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP 
group default qlen 1000
     link/ether d4:ae:52:cc:87:bb brd ff:ff:ff:ff:ff:ff
     inet 192.168.0.100/24 brd 192.168.0.255 scope global eth0
        valid_lft forever preferred_lft forever
     inet6 fe80::d6ae:52ff:fecc:87bb/64 scope link
        valid_lft forever preferred_lft forever
4: eth1: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN group 
default qlen 1000
     link/ether 90:e2:ba:4c:54:b8 brd ff:ff:ff:ff:ff:ff
5: eth2: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN group 
default qlen 1000
     link/ether 90:e2:ba:4c:54:b9 brd ff:ff:ff:ff:ff:ff

john at Pandora:~$ ip route
default via 192.168.0.1 dev eth0
192.168.0.0/24 dev eth0  proto kernel  scope link  src 192.168.0.100
192.168.10.0/24 dev eth3  proto kernel  scope link  src 192.168.10.1

john at Pandora:~$ sudo service isc-dhcp-server restart
john at Pandora:~$ sudo tail -f /var/log/syslog
...
Jul 21 08:06:13 Pandora kernel: [71959.936774] init: isc-dhcp-server 
main process (1293) killed by TERM signal
Jul 21 08:06:13 Pandora dhcpd: Not searching LDAP since ldap-server, 
ldap-port and ldap-base-dn were not specified in the config file
Jul 21 08:06:13 Pandora dhcpd: Not searching LDAP since ldap-server, 
ldap-port and ldap-base-dn were not specified in the config file
Jul 21 08:06:13 Pandora dhcpd: Wrote 0 leases to leases file.


Den 21. juli 2015 02:49, skrev John Hearns:
>
> John
>
> Please give is the results of ‘ip addr’
>
> Also look closely at the system log messages when dhcp starts.
>
> Stop the dhcp service, then restart it when running a tail –f on the 
> system log.
>
> If that does not help, stop the dhcp service and run dhcpd with the 
> ‘-d’ flag in a separate window,
>
> and give it the argument eth3 on the command line ?
>
>

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://www.beowulf.org/pipermail/beowulf/attachments/20150721/7aaed9ac/attachment.html>