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From "ASF GitHub Bot (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (CLOUDSTACK-8993) DHCP fails with "no address available" when an IP is reused
Date Wed, 28 Oct 2015 08:49:27 GMT

    [ https://issues.apache.org/jira/browse/CLOUDSTACK-8993?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14977981#comment-14977981
] 

ASF GitHub Bot commented on CLOUDSTACK-8993:
--------------------------------------------

Github user serbaut commented on the pull request:

    https://github.com/apache/cloudstack/pull/981#issuecomment-151768463
  
    In our environment it was really easy to reproduce.
    * Deploy instance 1, got IP 10.7.32.101
    * Delete and expunge instance 1
    * Deploy instance 2, got IP 100.7.32.101
    
    /etc/dhcphosts.txt now looked like
    
        mac1,10.7.32.101,infinite
        mac2,10.7.32.101,infinite
    
    And ndsmasq failed with a warning about duplicates and "no address available".
    
    I am still trying to get marvin tests inside devcloud to work. Is there a way to reach
you if I need assistance. Are the tests i tried to run above (test_update_config.py) supposed
to work or are the deprecated?



> DHCP fails with "no address available" when an IP is reused
> -----------------------------------------------------------
>
>                 Key: CLOUDSTACK-8993
>                 URL: https://issues.apache.org/jira/browse/CLOUDSTACK-8993
>             Project: CloudStack
>          Issue Type: Bug
>      Security Level: Public(Anyone can view this level - this is the default.) 
>          Components: SystemVM
>    Affects Versions: 4.6.0
>            Reporter: Joakim Sernbrant
>
> CsDhcp.process() appends new entries to /etc/dhcphosts.txt causing duplicates like:
> {code}
> 06:49:14:00:00:4d,10.7.32.107,node1,infinite
> 06:42:b0:00:00:3a,10.7.32.107,node2,infinite
> {code}
> This makes dnsmasq fail with "no address available".
> CsDhcp.process() should repopulate the file to remove old entries with the same IP address.



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