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From "ASF GitHub Bot (JIRA)" <>
Subject [jira] [Commented] (CLOUDSTACK-10252) VR Problem on Releasing Expunged Instance IP from dnsmasq.leases file
Date Wed, 24 Jan 2018 09:14:00 GMT


ASF GitHub Bot commented on CLOUDSTACK-10252:

DaanHoogland commented on issue #2427: CLOUDSTACK-10252: Delete dnsmasq leases file on restart
   Yes, well that bit of code does dnsmasq's job. I think we should merge this and then find
a way to call a release on a single lease by mac or ip.
   LGTM ^^

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> VR Problem on Releasing Expunged Instance IP from dnsmasq.leases file
> ---------------------------------------------------------------------
>                 Key: CLOUDSTACK-10252
>                 URL:
>             Project: CloudStack
>          Issue Type: Bug
>      Security Level: Public(Anyone can view this level - this is the default.) 
>            Reporter: Rohit Yadav
>            Assignee: Rohit Yadav
>            Priority: Blocker
>             Fix For:
> Email on dev@:
> Hi;
> Today we noticed that one of our new provisioned instance did not get IP
> from VR. When we dig into the issue we find that one different mac is
> written in dnsmasq.leases file holds new instances IP address.
> We checked this mac address from db and we noticed that this mac is used
> for old expunged instance.
> So from this point we realised that when we destroy an instance its mac did
> not removed from dnsmasq.leases file so if we use this ip for a new
> instance then we have a problem, our instance could not get IP from VR.
> We have one host on our lab environment and its Ubuntu 16.04.3 KVM. Today
> we made a HA test and we crashed the host so VR and SystemVM's are rebooted
> after we boot host back. I do not think this issue is related to VR reboot
> but i like to give information about our environment.
> We need to manage dnsmasq.leases file when we expunge an instance.
> Thanks
> Özhan

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