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List:       ocfs2-devel
Subject:    Re: [Ocfs2-devel] [PATCH] Fix waiting status race condition in dlm recovery
From:       Sunil Mushran <sunil.mushran () gmail ! com>
Date:       2012-05-31 1:18:12
Message-ID: CAEeiSHWkhD8x8nrix2+Wc1nesH8CExU6kA10nCH0J1nCwUaDtg () mail ! gmail ! com
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On Tue, May 29, 2012 at 5:41 PM, Xiaowei <xiaowei.hu@oracle.com> wrote:
> On 05/30/2012 06:09 AM, Sunil Mushran wrote:
> I would suggest exploring adding this in dlm hb down event. Checking live
> map all
> over the place is hacky. We do it more than we should right now. Let's not
> add to the
> mess.
>
> HI Sunil,
>
> Do you mean we should clear the bit in domain map in dlm hb down event
> directly when the node down
> and check with dlm_is_node_dead at here?
> Or how could we explore and ensure the node is alive during the whole
> migrate process?One node could die even after it sends out one locks package
> and before the next if there were too many locks on that lockres.

dlm hb down event is triggered when a node is declared dead. That's where we
clean up pending mles, etc. You can add a check for recovery and add logic to
change the reco state for that node there.

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