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Posted to issues@cloudstack.apache.org by "Dennis Lawler (JIRA)" <ji...@apache.org> on 2013/05/01 20:28:16 UTC

[jira] [Updated] (CLOUDSTACK-2299) Stale DHCP leases block IP reallocation

     [ https://issues.apache.org/jira/browse/CLOUDSTACK-2299?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Dennis Lawler updated CLOUDSTACK-2299:
--------------------------------------

    Summary: Stale DHCP leases block IP reallocation  (was: Stale DHCP leases block)
    
> Stale DHCP leases block IP reallocation
> ---------------------------------------
>
>                 Key: CLOUDSTACK-2299
>                 URL: https://issues.apache.org/jira/browse/CLOUDSTACK-2299
>             Project: CloudStack
>          Issue Type: Bug
>      Security Level: Public(Anyone can view this level - this is the default.) 
>          Components: Network Controller, Network Devices
>    Affects Versions: pre-4.0.0, 4.0.0, 4.0.1
>         Environment: Virtual Router used for DHCP, DNS services
>            Reporter: Dennis Lawler
>
> Commit c9c68e1 fixed a 2 second DNS outage triggered with new VM instantiations, but introduced a different problem: old DHCP leases are maintained in memory by dnsmasq.  
> This causes IP re-allocations to fail as such:
> dnsmasq-dhcp[pid]: not using configured address 192.168.1.100 because it is leased to aa:bb:cc:11:22:33
> dnsmasq-dhcp[pid]: DHCPDISCOVER(eth0) aa:bb:cc:22:33:44 no address available

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