[jira] [Commented] (CLOUDSTACK-3424) IPV6 - When a Vm is expunged and a new Vm is deployed with the same name , /etc/dhchosts.txt has 2 entries with the same name.

["Jayapal Reddy (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/CLOUDSTACK-3424?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13705838#comment-13705838 ] 

Jayapal Reddy commented on CLOUDSTACK-3424:
-------------------------------------------

The expunged vm entry got deleted when the same mac or ip is assigned to another vm.

Is there any functional issue is seen when there are two entries with the same name ? 
Is vm name resolved to old IP ?  
                
> IPV6 - When a Vm is expunged and a new Vm is deployed with the same name , /etc/dhchosts.txt has 2 entries with the same name.
> ------------------------------------------------------------------------------------------------------------------------------
>
>                 Key: CLOUDSTACK-3424
>                 URL: https://issues.apache.org/jira/browse/CLOUDSTACK-3424
>             Project: CloudStack
>          Issue Type: Bug
>      Security Level: Public(Anyone can view this level - this is the default.) 
>          Components: Management Server
>    Affects Versions: 4.2.0
>         Environment: Build from master-6-17-stable
>            Reporter: Sangeetha Hariharan
>            Priority: Critical
>             Fix For: 4.2.0
>
>         Attachments: management-server.log
>
>
> IPV6 - When a Vm is expunged and a new Vm is deployed with the same name , /etc/dhchosts.txt has 2 entries with the same name
> Steps to reproduce the problem:
> Create a ipv6 network.
> Deploy a Vm with name - test456.
> Destroy this VM. Wait for it to be expunged.
> Deploy another Vm with same name - test456.
> We see that there are 2 entries in the router with the same name "test456" resolving to 2 different ipv6 addresses.
> root@r-17-VM:~# cat /etc/dhcphosts.txt
> id:00:03:00:01:06:4e:de:00:00:2f,[fc00:3:1370::744f],test123,infinite
> id:00:03:00:01:06:75:46:00:00:31,[fc00:3:1370::34ed],test456,infinite
> id:00:03:00:01:06:e4:ae:00:00:32,[fc00:3:1370::ae4b],testyoyo,infinite
> id:00:03:00:01:06:96:aa:00:00:33,[fc00:3:1370::34ed],testyoyo1,infinite
> id:00:03:00:01:06:cb:88:00:00:34,[fc00:3:1370::6eb2],test456,infinite
> root@r-17-VM:~#
> Attaching management server logs:
> Have 2 entries for the same name is a problem.
> Is it also a problem to have the same ipv6 address associated with 2 different vms with different Vm names ( 1 expunged and 1 active , in my case "test456" which is expunged and "testyoyo1" which is active) ?

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