Distributed Replicated Block Device (DRBD) development
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From: Philipp Reisner <philipp.reisner@linbit.com>
To: drbd-dev@lists.linbit.com
Cc: "Montrose, Ernest" <Ernest.Montrose@stratus.com>
Subject: Re: [Drbd-dev] Stuck in WFBitMapS again
Date: Mon, 18 Feb 2008 14:05:38 +0100	[thread overview]
Message-ID: <200802181405.39228.philipp.reisner@linbit.com> (raw)
In-Reply-To: <BD7042533C2F8943A6A4257A9E31C454F47AC0@EXNA.corp.stratus.com>

Am Mittwoch, 13. Februar 2008 00:55:51 schrieb Montrose, Ernest:
> It looks like we still have a race condition while finishing syncing and
> pausing/resuming syncing at the same time.
>
> What's happening is that we finish syncing.
> The secondary side goes to Connected at the end of
> drbd_resync_finished()
>
> The Primary side is still in drbd_resync_finished().  While still there,
>
> the syncer isp flag gets set and unset due to a higher priority device
> syncer getting paused/resumed.
>
> Now the Primary side sends "Inconsistent" state to the Secondary since
> we are still in drbd_resync_finished()
> and have not gone Connected and UptoDate yet. But the other side is
> connected and UpToDate though.
>
> The secondary goes WFBitMapS via drbd_sync_handshake()
>
> In the mean time the Primary finally goes Connected and UptoDate.
>
> The Secondary is stuck in WFBitMapS.
>

Hi Ernest,

http://git.drbd.org/?p=drbd-8.0.git;a=commit;h=85b1963598cdb29d2e1066c0f4357c81558ff943

-Phil
-- 
: Dipl-Ing Philipp Reisner                      Tel +43-1-8178292-50 :
: LINBIT Information Technologies GmbH          Fax +43-1-8178292-82 :
: Vivenotgasse 48, 1120 Vienna, Austria        http://www.linbit.com :

  reply	other threads:[~2008-02-18 13:05 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-01-27 15:48 [Drbd-dev] [PATCH] DRBD 8.0; Make sure barrier is sent after last data block in epoch Graham, Simon
2008-01-29 13:37 ` Philipp Reisner
2008-01-29 19:40 ` Graham, Simon
2008-02-12 23:55 ` [Drbd-dev] Stuck in WFBitMapS again Montrose, Ernest
2008-02-18 13:05   ` Philipp Reisner [this message]
2008-03-31 14:43   ` Philipp Reisner
2008-03-31 17:12   ` Montrose, Ernest

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