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From "Remi Bergsma (JIRA)" <j...@apache.org>
Subject [jira] [Created] (CLOUDSTACK-8814) Order of nics in non-VPC router changed resulting in services to fail
Date Sat, 05 Sep 2015 19:42:45 GMT
Remi Bergsma created CLOUDSTACK-8814:
----------------------------------------

             Summary: Order of nics in non-VPC router changed resulting in services to fail
                 Key: CLOUDSTACK-8814
                 URL: https://issues.apache.org/jira/browse/CLOUDSTACK-8814
             Project: CloudStack
          Issue Type: Bug
      Security Level: Public (Anyone can view this level - this is the default.)
          Components: SystemVM
    Affects Versions: 4.6.0
            Reporter: Remi Bergsma
            Priority: Critical
             Fix For: 4.6.0


When testing a non-vpc setup, CloudStack was not able to ssh to 169.254.x.y because it was
not listening on this ip:

Isolated network, single router doesn't listen on link_local:3922
tcp        0      0 192.168.23.25:3922      0.0.0.0:*               LISTEN      0        
 6828        3487/sshd       

Redundant isolated router:
tcp        0      0 10.20.1.10:3922         0.0.0.0:*               LISTEN      0        
 6434        3068/sshd       

The reason for this, is that the naming of the interfaces now seems to be the same (same order)
as on VPC routers. This used to be different. cloud-early-config uses hard-coded eth devices
that seem not to have reflected to these changes.

setup_vpcrouter() {
...
  setup_sshd $ETH0_IP "eth0"
...
==> That works!

setup_router() {
..
setup_sshd $ETH1_IP "eth1"

==> That goes wrong now.

If we keep this new order, all nics need to be checked. Apache settings, keepalived etc etc

Here you see the difference:

non-vpc router in 4.4:
root@r-17809-VM:~# ifconfig 
eth0      Link encap:Ethernet  HWaddr 02:00:1c:e5:00:16  
          inet addr:10.1.1.1  Bcast:10.1.1.255  Mask:255.255.255.0
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:251172 errors:0 dropped:0 overruns:0 frame:0
          TX packets:223685 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:22836300 (21.7 MiB)  TX bytes:106769179 (101.8 MiB)
          Interrupt:24 

eth1      Link encap:Ethernet  HWaddr 0e:00:a9:fe:01:44  
          inet addr:169.254.1.68  Bcast:169.254.255.255  Mask:255.255.0.0
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:13052283 errors:0 dropped:0 overruns:0 frame:0
          TX packets:16557626 errors:0 dropped:16 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:7051380496 (6.5 GiB)  TX bytes:3279800734 (3.0 GiB)
          Interrupt:25 

eth2      Link encap:Ethernet  HWaddr 06:ab:30:00:00:30  
          inet addr:178.y.x.22  Bcast:178.y.x.255  Mask:255.255.255.0
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:308293122 errors:0 dropped:540 overruns:0 frame:0
          TX packets:364798 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:16920767106 (15.7 GiB)  TX bytes:33871999 (32.3 MiB)
          Interrupt:26 

non-vpc router in 4.6

root@r-9-VM:/opt/cloud/bin/cs# ifconfig 
eth0      Link encap:Ethernet  HWaddr 0e:00:a9:fe:03:04  
          inet addr:169.254.3.4  Bcast:169.254.255.255  Mask:255.255.0.0
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:1018 errors:0 dropped:0 overruns:0 frame:0
          TX packets:788 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:163208 (159.3 KiB)  TX bytes:110389 (107.8 KiB)

eth1      Link encap:Ethernet  HWaddr 06:c3:88:00:00:19  
          inet addr:192.168.23.25  Bcast:192.168.23.255  Mask:255.255.255.0
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:20 errors:0 dropped:0 overruns:0 frame:0
          TX packets:11 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:1344 (1.3 KiB)  TX bytes:606 (606.0 B)

eth2      Link encap:Ethernet  HWaddr 02:00:6d:bd:00:02  
          inet addr:10.1.1.1  Bcast:10.1.1.255  Mask:255.255.255.0
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:40 errors:0 dropped:0 overruns:0 frame:0
          TX packets:7 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:4308 (4.2 KiB)  TX bytes:294 (294.0 B)

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:1 errors:0 dropped:0 overruns:0 frame:0
          TX packets:1 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0 
          RX bytes:93 (93.0 B)  TX bytes:93 (93.0 B)







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