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From "ASF GitHub Bot (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (CLOUDSTACK-9154) rVPC doesn't recover from cleaning up of network garbage collector
Date Sat, 09 Jan 2016 13:06:39 GMT

    [ https://issues.apache.org/jira/browse/CLOUDSTACK-9154?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15090606#comment-15090606
] 

ASF GitHub Bot commented on CLOUDSTACK-9154:
--------------------------------------------

Github user koushik-das commented on the pull request:

    https://github.com/apache/cloudstack/pull/1277#issuecomment-170238553
  
    @wilderrodrigues
    The GC thread execution frequency shouldn't depend on real hardware or simulator. It will
always execute at gc.interval seconds as soon as the MS is started. So whether validated with
real hardware or simulator shouldn't matter at least for validating config values.
    
    I am not sure what kind of work the GC thread is doing for the tests that are failing
in your environment.
    With real hardware one of the possibility is:
    - GC thread may take a longer time to complete (> 10 seconds that you have configured).
In this case the next instance of the thread will only run when the previous one is completed.
So this needs to be ruled out.


> 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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