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From "ASF subversion and git services (JIRA)" <>
Subject [jira] [Commented] (CLOUDSTACK-8935) Cannot remove [r]VPC networks due to RTNETLINK error
Date Sat, 24 Oct 2015 07:17:28 GMT


ASF subversion and git services commented on CLOUDSTACK-8935:

Commit b1c7d4b20de9e6c2f38b5c5e9be761707f1c56c1 in cloudstack's branch refs/heads/master from
[;h=b1c7d4b ]

Merge pull request #967 from ekholabs/fix/cleanup-CLOUDSTACK-8935

CLOUDSTACK-8935 - Cannot remove [r]VPC networks due to RTNETLINK errorThis PR fixes the "sequence
item 0: expected string, NoneType found" error found in the file when attempting
to remo a network from a VPC.

* pr/967:
  CLOUDSTACK-8935 - Filter the DNS list because it might contain 1 None entry which breaks
the code.
  CLOUDSTACK-8935 - Clean up network resources in the right order
  CLOUDSTACK-8935 - Do not retry 60 times when we expect the SSH to fail
  CLOUDSTACK-8935 - Check if the key is available in the dictionary
  CLOUDSTACK-8935 - Add a check to avoid exception related to None value

Signed-off-by: Remi Bergsma <>

> Cannot remove [r]VPC networks due to RTNETLINK error
> ----------------------------------------------------
>                 Key: CLOUDSTACK-8935
>                 URL:
>             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
>            Reporter: Wilder Rodrigues
>            Assignee: Wilder Rodrigues
>            Priority: Critical
> Sometimes, when trying to remove a network of a rVPC, I get the following error in the
router logs:
> 2015-10-06 08:28:59,929 DEBUG [kvm.resource.LibvirtComputingResource] (agentRequest-Handler-4:null)
RTNETLINK answers: File existsRTNETLINK answers: File exists[WARN] :: Reconfiguring
guest netwo
> rk...[INFO] :: Processing Guest Network.[INFO] Processing JSON file
guest_network.jsonTraceback (most recent call last):  File "/opt/cloud/bin/",
line 131, in <module>    process_
> file()  File "/opt/cloud/bin/", line 54, in process_file    finish_config()
 File "/opt/cloud/bin/", line 44, in finish_config    returncode = configure.main([])
 File "/opt/cloud/
> bin/", line 888, in main    dhcp.process()  File "/opt/cloud/bin/cs/",
line 47, in process    self.configure_server()  File "/opt/cloud/bin/cs/", line 71,
in configure_server    line
>  = "dhcp-option=tag:interface-%s,6,%s" % (device, ','.join(gn.get_dns()))TypeError: sequence
item 0: expected string, NoneType found
> A way to work this around is:
> 1. Stop and destroy the router(s)
> 2. Remove the network

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