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https://issues.apache.org/jira/browse/CLOUDSTACK-9154?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15091766#comment-15091766
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ASF GitHub Bot commented on CLOUDSTACK-9154:
--------------------------------------------

Github user wilderrodrigues commented on the pull request:

    https://github.com/apache/cloudstack/pull/1277#issuecomment-170508275
  
    Hi @koushik-das 
    
    Your questions were rhetorical and hence not valid because I did not 
disagree with you in terms of refactor. I asked you to help testing, which you 
partially did. But not having a test environment and relying on a simulator for 
everything seems a bit naive for me. You might remember that we had many 
problems when people did LGTM PRs based on the Travis results, which are not 
reliable.
    
    As I wrote on Saturday, I was going to test again - with the changes - and 
post the result, which I did. I will now retest in a clean DC without the 
commit - GC related -  and post the results. We all expect it to pass, of 
course. But if it doesn't we need to find out why the "agnostic" nature of the 
implementation is broken.
    
    We could talk for hours and disagree only on things being agnostic within 
ACS. I have a few cases in my sleeve. But let's not start again.
    
    Don't give up and say it's useless. At the end we will learn something 
anyway, even from rants on github.
    
    By the way, the ```smoke/test_routers.py``` tests were executed by 
@remibergsma as well.
    
    Cheers,
    Wilder


> rVPC doesn't recover from cleaning up of network garbage collector
> ------------------------------------------------------------------
>
>                 Key: CLOUDSTACK-9154
>                 URL: https://issues.apache.org/jira/browse/CLOUDSTACK-9154
>             Project: CloudStack
>          Issue Type: Bug
>      Security Level: Public(Anyone can view this level - this is the 
> default.) 
>          Components: Virtual Router
>    Affects Versions: 4.6.0, 4.7.0, 4.6.1, 4.6.2
>         Environment: ACS 4.7
>            Reporter: Remi Bergsma
>            Assignee: Wilder Rodrigues
>            Priority: Critical
>             Fix For: 4.7.1
>
>
> - deploy a rVPC
> - deploy VM in it
> - make port forwarding (2nd ip, firewall and such)
> - confirm it works
> - stop the vm
> - after some time the network garbage collector will come and tear down the 
> network since there are no more VMs
> - keepalived will enter FAULT state because of missing eth2 nic (which was 
> first network tier)
> - all is left is ethic (link local) and lo0
> - then start the vm again
> - the nics get plugged again and keepalived will decide on a new master
> - the nics are screwed up after this:
> ```
> root@r-1021-VM:~# ip a
> 1: lo: <LOOPBACK,UP,LOWER_UP> mtu 16436 qdisc noqueue state UNKNOWN
>     link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
>     inet 127.0.0.1/8 scope host lo
> 2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP 
> qlen 1000
>     link/ether 0e:00:a9:fe:02:92 brd ff:ff:ff:ff:ff:ff
>     inet 169.254.2.146/16 brd 169.254.255.255 scope global eth0
> 5: eth1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP 
> qlen 1000
>     link/ether 02:00:18:34:00:05 brd ff:ff:ff:ff:ff:ff
>     inet x.y.238.24/24 brd x.y.238.255 scope global eth1
>     inet 10.0.0.51/24 brd 10.0.0.255 scope global eth1
>     inet 10.0.0.1/24 brd 10.0.0.255 scope global secondary eth1
> 6: eth2: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP 
> qlen 1000
>     link/ether 06:d5:4e:00:00:1d brd ff:ff:ff:ff:ff:ff
>     inet x.y.238.25/24 brd x.y.238.255 scope global eth2
>     inet 10.0.0.1/24 brd 10.0.0.255 scope global eth2
> root@r-1021-VM:~#
> ```
> Public and tier ip addresses are mixed up.
> /etc/cloudstack/ips.json has the wrong info:
> ```
> {                                                                             
>                                                                               
>                                      [44/959]
>     "eth0": [
>         {
>             "add": true,
>             "broadcast": "169.254.255.255",
>             "cidr": "169.254.2.146/16",
>             "device": "eth0",
>             "gateway": "None",
>             "netmask": "255.255.0.0",
>             "network": "169.254.0.0/16",
>             "nic_dev_id": "0",
>             "nw_type": "control",
>             "one_to_one_nat": false,
>             "public_ip": "169.254.2.146",
>             "size": "16",
>             "source_nat": false
>         }
>     ],
>     "eth1": [
>         {
>             "add": true,
>             "broadcast": "x.y.238.255",
>             "cidr": "x.y.238.24/24",
>             "device": "eth1",
>             "first_i_p": true,
>             "gateway": "x.y.238.1",
>             "netmask": "255.255.255.0",
>             "network": "x.y.238.0/24",
>             "new_nic": false,
>             "nic_dev_id": 1,
>             "nw_type": "public",
>             "one_to_one_nat": false,
>             "public_ip": "x.y.238.24",
>             "size": "24",
>             "source_nat": true,
>             "vif_mac_address": "06:fc:da:00:00:1c"
>         },
>         {
>             "add": true,
>             "broadcast": "10.0.0.255",
>             "cidr": "10.0.0.51/24",
>             "device": "eth1",
>             "gateway": "10.0.0.1",
>             "netmask": "255.255.255.0",
>             "network": "10.0.0.0/24",
>             "nic_dev_id": "1",
>             "nw_type": "guest",
>             "one_to_one_nat": false,
>             "public_ip": "10.0.0.51",
>             "size": "24",
>             "source_nat": false
>         }
>     ],
>     "eth2": [
>         {
>             "add": false,
>             "broadcast": "10.0.0.255",
>             "cidr": "10.0.0.173/24",
>             "device": "eth2",
>             "gateway": "10.0.0.1",
>             "netmask": "255.255.255.0",
>             "network": "10.0.0.0/24",
>             "nic_dev_id": "2",
>             "nw_type": "guest",
>             "one_to_one_nat": false,
>             "public_ip": "10.0.0.173",
>             "size": "24",
>             "source_nat": false
>         },
>         {
>             "add": true,
>             "broadcast": "x.y.238.255",
>             "cidr": "x.y.238.25/24",
>             "device": "eth2",
>             "first_i_p": true,
>             "gateway": "x.y.238.1",
>             "netmask": "255.255.255.0",
>             "network": "x.y.238.0/24",
>             "new_nic": false,
>             "nic_dev_id": 2,
>             "nw_type": "public",
>             "one_to_one_nat": false,
>             "public_ip": "x.y.238.25",
>             "size": "24",
>             "source_nat": true,
>             "vif_mac_address": "06:d5:4e:00:00:1d"
>         }
>     ],
>     "id": "ips"
> ```
> Pinging [~wilder.rodrigues]



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