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From: Philipp Reisner <philipp.reisner@linbit.com>
To: drbd-dev@lists.linbit.com
Subject: Re: [Drbd-dev] Problems with code to disallow connection when peer has mismatched UUID
Date: Fri, 31 Oct 2008 13:43:45 +0100	[thread overview]
Message-ID: <200810311343.46320.philipp.reisner@linbit.com> (raw)
In-Reply-To: <DA0E7D869C862D4095C265233CD1D41E01192D4A@EXNA.corp.stratus.com>

Am Montag 15 September 2008 16:40:34 schrieb Graham, Simon:
> Attached is a proposed patch to address this problem that does the
> following:
>
> 1. When connection is lost, a new UUID is not created on the primary if
> the local disk is inconsistent
> 2. Allow connection to be established if local disk is inconsistent even
> if the remote is using
>    a different UUID - our data is useless and cannot have been changed
> anyway. The following handshake
>    will cause the appropriate resync.
>
> Although only one of these is actually required to fix my problem, I
> thought it was better to be consistent
> and change both.
>

Hi Simon,

You patch is correct, and quite similar to that commit. The second
hunk is missing since a node in such an state can not get promoted
to primary anyways.

commit a20ecb2e221a3a0e565ecdbb9ac5239b54dca395
Author: Philipp Reisner <philipp.reisner@linbit.com>
Date:   Thu Jul 24 14:06:41 2008 +0200

    Fixed the "exposed data" logic in case a sync target primary lost the 
network connection

    closes #98

-Phil
-- 
: Dipl-Ing Philipp Reisner
: LINBIT | Your Way to High Availability
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      parent reply	other threads:[~2008-10-31 12:43 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-09-10 20:13 [Drbd-dev] Problems with code to disallow connection when peer has mismatched UUID Graham, Simon
2008-09-11  9:24 ` Lars Ellenberg
2008-09-11 10:33 ` [Drbd-dev] Problems with code to disallow connection when peerhas " Graham, Simon
2008-09-15 14:40   ` [Drbd-dev] Problems with code to disallow connection when peer has " Graham, Simon
2008-09-16 19:14     ` Graham, Simon
2008-10-31 12:43     ` Philipp Reisner [this message]

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