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Posted to dev@vcl.apache.org by "Andy Kurth (JIRA)" <ji...@apache.org> on 2016/07/20 17:18:20 UTC

[jira] [Updated] (VCL-909) get_random_mac_address in utils.pm may generate the same mac for VMs

     [ https://issues.apache.org/jira/browse/VCL-909?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Andy Kurth updated VCL-909:
---------------------------
    Fix Version/s: 2.5

> get_random_mac_address in utils.pm may generate the same mac for VMs
> --------------------------------------------------------------------
>
>                 Key: VCL-909
>                 URL: https://issues.apache.org/jira/browse/VCL-909
>             Project: VCL
>          Issue Type: Bug
>          Components: vcld (backend)
>    Affects Versions: 2.4.2
>            Reporter: Xianqing Yu
>             Fix For: 2.5
>
>
> We use get_random_mac_address() in libvirt.pm to generate random mac address for VMs. However, we observe some of our reservations failed because some of VMs have exactly the same mac (for both eth0 and eth1). Since reservations are made by multiple users simultaneously, current design of get_random_mac_address may return the same mac to multiple requests. 



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