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From "Julian Reschke (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (OAK-3418) ClusterNodeInfo uses irrelevant network interface IDs on Windows
Date Mon, 21 Sep 2015 13:39:04 GMT

     [ https://issues.apache.org/jira/browse/OAK-3418?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Julian Reschke updated OAK-3418:
--------------------------------
    Attachment: OAK-3418.diff

Proposed patch. It (a) skips zero-length hardware addresses, and (b) prioritizes hardware
addresses with length == 6 over others, so that the windows-specific 00000000e000 is not used.

This solves my immediate problem on Windows and doesn't seem to make too strange assumptions,
so I'd propose to use this for now.

[~tmueller], [~egli], can you review?

> ClusterNodeInfo uses irrelevant network interface IDs on Windows
> ----------------------------------------------------------------
>
>                 Key: OAK-3418
>                 URL: https://issues.apache.org/jira/browse/OAK-3418
>             Project: Jackrabbit Oak
>          Issue Type: Bug
>          Components: core
>            Reporter: Julian Reschke
>            Assignee: Thomas Mueller
>              Labels: resilience
>             Fix For: 1.3.7
>
>         Attachments: OAK-3418.diff
>
>
> On Windows, all kinds of adapters (tunnel, VPN) return a hardware address of 00-00-00-00-00-00-00-E0
(note 8 bytes, not 6). These addresses are useless for the identification of the machine,
however they get used because they are the lowest value.
> A potential fix is to change the validity check to:
> if (mac != null && mac.length == 6)



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