[hobbit] Some more clear RRD duplicating-causing samples

Buchan Milne bgmilne at staff.telkomsa.net
Thu Aug 3 16:45:37 CEST 2006 

On Thursday 03 August 2006 16:28, Brodie, Kent wrote:
> Henrik, here you go:    Two more netstat data chunks that cause the
> Duplication error (parsing issue?) in rrd/hobbit.
>
> My simple observation is the one thing these two hosts have in common is
> virtual network interfaces, so instead of simpler items like eth0, eth1
> and so on, you have eth0, eth0:0, and so forth.    Linux in this case,
> but that would apply to solaris and so on as well.   Just a
> hunch.................
>
> @@data#98185|1154614736.024527|192.168.224.202||dunn.hmgc.mcw.edu|ifstat
> data dunn,hmgc,mcw,edu.ifstat
> linux
> eth0      Link encap:Ethernet  HWaddr 00:09:3D:13:DC:AB
>           inet addr:192.168.224.105  Bcast:192.168.224.255
> Mask:255.255.255.0
>           inet6 addr: fe80::209:3dff:fe13:dcab/64 Scope:Link
>           UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
>           RX packets:40318794 errors:0 dropped:0 overruns:0 frame:0
>           TX packets:15352953 errors:0 dropped:0 overruns:0 carrier:0
>           collisions:0 txqueuelen:1000
>           RX bytes:2942042461 (2.7 GiB)  TX bytes:21803054108 (20.3 GiB)
>           Interrupt:185
>
> eth0:0    Link encap:Ethernet  HWaddr 00:09:3D:13:DC:AB
>           inet addr:192.168.224.107  Bcast:192.168.224.255
> Mask:255.255.255.0
>           UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
>           Interrupt:185
>
> eth0:1    Link encap:Ethernet  HWaddr 00:09:3D:13:DC:AB
>           inet addr:192.168.224.160  Bcast:192.168.224.255
> Mask:255.255.255.0
>           UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
>           Interrupt:185
>
> 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:37737 errors:0 dropped:0 overruns:0 frame:0
>           TX packets:37737 errors:0 dropped:0 overruns:0 carrier:0
>           collisions:0 txqueuelen:0
>           RX bytes:6042388 (5.7 MiB)  TX bytes:6042388 (5.7 MiB)
>
> @@
>
>
>
>
>
>
> @@data#98366|1154614859.203728|192.168.224.202||clifford.hmgc.mcw.edu|if
> stat
> data clifford,hmgc,mcw,edu.ifstat
> linux
> eth0      Link encap:Ethernet  HWaddr 00:09:3D:13:C8:78
>           inet addr:192.168.224.104  Bcast:192.168.224.255
> Mask:255.255.255.0
>           inet6 addr: fe80::209:3dff:fe13:c878/64 Scope:Link
>           UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
>           RX packets:146220628 errors:0 dropped:0 overruns:0 frame:0
>           TX packets:42544430 errors:0 dropped:0 overruns:0 carrier:0
>           collisions:0 txqueuelen:1000
>           RX bytes:14048692258 (13.0 GiB)  TX bytes:57506442876 (53.5
> GiB)
>           Interrupt:185
>
> eth0:0    Link encap:Ethernet  HWaddr 00:09:3D:13:C8:78
>           inet addr:192.168.224.106  Bcast:192.168.224.255
> Mask:255.255.255.0
>           UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
>           Interrupt:185
>
> eth0:1    Link encap:Ethernet  HWaddr 00:09:3D:13:C8:78
>           inet addr:192.168.224.159  Bcast:192.168.224.255
> Mask:255.255.255.0
>           UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
>           Interrupt:185
>
> 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:1189289 errors:0 dropped:0 overruns:0 frame:0
>           TX packets:1189289 errors:0 dropped:0 overruns:0 carrier:0
>           collisions:0 txqueuelen:0
>           RX bytes:347179798 (331.0 MiB)  TX bytes:347179798 (331.0 MiB)
>
> @@


Hmm, now that I think about this more carefully, this issue could be affecting 
me as well, resulting in some gaps in various rrd files (which I first 
thought might be affected by running everything via bbproxy and a rather 
complex setup).

In our environment we typically use bonding/teaming (eg with eth0 connected to 
one switch, eth1 connected to another, with the two interfaces set up in 
passive failover, appearing as one "bond0" device). Then, to ensure access to 
the right networks, we have VLANs (eg bond0.4, bond0.54, bond0106) on top of 
the bonded interface. In some cases (HA setups), there are virtual interfaces 
(eg bond0.4:0)on top of the bonded interface.

I've included sample ifstat contents (but, not necessarily at the time I've 
seen gaps in the rrds):

[ifstat]
bond0     Link encap:Ethernet  HWaddr 00:16:35:7E:8D:59  
          inet6 addr: fe80::216:35ff:fe7e:8d59/64 Scope:Link
          UP BROADCAST RUNNING MASTER MULTICAST  MTU:1500  Metric:1
          RX packets:1353358109 errors:0 dropped:0 overruns:0 frame:0
          TX packets:1414161412 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0 
          RX bytes:3466938915 (3.2 GiB)  TX bytes:1361756811 (1.2 GiB)

bond0.4   Link encap:Ethernet  HWaddr 00:16:35:7E:8D:59  
          inet addr:192.168.211.41  Bcast:192.168.211.255  Mask:255.255.255.0
          inet6 addr: fe80::216:35ff:fe7e:8d59/64 Scope:Link
          UP BROADCAST RUNNING MASTER MULTICAST  MTU:1500  Metric:1
          RX packets:1353172280 errors:0 dropped:0 overruns:0 frame:0
          TX packets:1414125729 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0 
          RX bytes:3747147076 (3.4 GiB)  TX bytes:2930351274 (2.7 GiB)

bond0.4:0 Link encap:Ethernet  HWaddr 00:16:35:7E:8D:59  
          inet addr:192.168.211.203  Bcast:192.168.211.255  Mask:255.255.255.0
          UP BROADCAST RUNNING MASTER MULTICAST  MTU:1500  Metric:1

bond0.54  Link encap:Ethernet  HWaddr 00:16:35:7E:8D:59  
          inet addr:192.168.12.18  Bcast:192.168.15.255  Mask:255.255.252.0
          inet6 addr: fe80::216:35ff:fe7e:8d59/64 Scope:Link
          UP BROADCAST RUNNING MASTER MULTICAST  MTU:1500  Metric:1
          RX packets:15562 errors:0 dropped:0 overruns:0 frame:0
          TX packets:220 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0 
          RX bytes:952935 (930.6 KiB)  TX bytes:9408 (9.1 KiB)

bond0.106 Link encap:Ethernet  HWaddr 00:16:35:7E:8D:59  
          inet addr:192.168.106.68  Bcast:192.168.106.255  Mask:255.255.255.0
          inet6 addr: fe80::216:35ff:fe7e:8d59/64 Scope:Link
          UP BROADCAST RUNNING MASTER MULTICAST  MTU:1500  Metric:1
          RX packets:173127 errors:0 dropped:0 overruns:0 frame:0
          TX packets:38287 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0 
          RX bytes:10379598 (9.8 MiB)  TX bytes:3224568 (3.0 MiB)

eth0      Link encap:Ethernet  HWaddr 00:16:35:7E:8D:59  
          inet6 addr: fe80::216:35ff:fe7e:8d59/64 Scope:Link
          UP BROADCAST RUNNING SLAVE MULTICAST  MTU:1500  Metric:1
          RX packets:1353358109 errors:0 dropped:0 overruns:0 frame:0
          TX packets:1414161412 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:3466938915 (3.2 GiB)  TX bytes:1361756811 (1.2 GiB)
          Interrupt:201 

eth1      Link encap:Ethernet  HWaddr 00:16:35:7E:8D:59  
          inet6 addr: fe80::216:35ff:fe7e:8d59/64 Scope:Link
          UP BROADCAST NOARP SLAVE 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)
          Interrupt:209 

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:1668785 errors:0 dropped:0 overruns:0 frame:0
          TX packets:1668785 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0 
          RX bytes:720576454 (687.1 MiB)  TX bytes:720576454 (687.1 MiB)



Regards,
Buchan

-- 
Buchan Milne
ISP Systems Specialist
B.Eng,RHCE(803004789010797),LPIC-2(LPI000074592)
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