[Ocfs2-users] Ocfs2-users Digest, Vol 75, Issue 10

[SUVANKAR MOITRA]

Hi,

I have 2 questions :

1. OCFS2 works on which schema.
2. If i run my rac on OCFS2 and i need to restore my datafile in other database which is runing on ASM , Is that possible? If yes how?

Thanks & regards

Suvankar

--- On Thu, 3/11/10, ocfs2-users-request at oracle.com <ocfs2-users-request at oracle.com> wrote:

> From: ocfs2-users-request at oracle.com <ocfs2-users-request at oracle.com>
> Subject: Ocfs2-users Digest, Vol 75, Issue 10
> To: ocfs2-users at oss.oracle.com
> Date: Thursday, March 11, 2010, 1:30 AM
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> Today's Topics:
> 
>    1. Disk access hang (Gabriele Alberti)
>    2. Re: Disk access hang (Sunil Mushran)
> 
> 
> ----------------------------------------------------------------------
> 
> Message: 1
> Date: Wed, 10 Mar 2010 11:22:34 +0100
> From: Gabriele Alberti <gabriele.alberti at pg.infn.it>
> Subject: [Ocfs2-users] Disk access hang
> To: ocfs2-users at oss.oracle.com
> Message-ID:
>     <65965dbb1003100222k5e213ce3t6c7cc7f42ee6fce0 at mail.gmail.com>
> Content-Type: text/plain; charset=ISO-8859-1
> 
> Hello,
> I have a weird behavior in my ocfs2 cluster. I have few
> nodes
> accessing a shared device, and everything works fine as
> long as one
> node crashes for whatever reason. When this happens, the
> ocfs2
> filesystem hangs and it seems impossible to access it until
> I dont
> bring down all the nodes but one. I have a (commented) log
> of what
> happened few nights ago, when a node shut itself down
> because of a fan
> failure. In order to avoid uncontrolled re-joins to the
> cluster my
> nodes stay off when they go off for a reason.
> 
> The log is available at http://pastebin.com/gDg577hH
> 
> Is this the expected behavior? I thought when one node
> fails, the rest
> of the world should go on working after the timeout (I used
> default
> values for timeouts).
> 
> Here are my versions
> 
> # modinfo ocfs2
> filename:   
>    /lib/modules/2.6.28.9/kernel/fs/ocfs2/ocfs2.ko
> author:         Oracle
> license:        GPL
> description:    OCFS2 1.5.0
> version:        1.5.0
> vermagic:       2.6.28.9 SMP
> mod_unload modversions PENTIUM4 4KSTACKS
> depends:       
> jbd2,ocfs2_stackglue,ocfs2_nodemanager
> srcversion: 
>    FEA8BA1FCC9D61DAAF32077
> 
> Best regards,
> 
> G.
> 
> 
> 
> ------------------------------
> 
> Message: 2
> Date: Wed, 10 Mar 2010 11:56:45 -0800
> From: Sunil Mushran <sunil.mushran at oracle.com>
> Subject: Re: [Ocfs2-users] Disk access hang
> To: Gabriele Alberti <gabriele.alberti at pg.infn.it>
> Cc: ocfs2-users at oss.oracle.com
> Message-ID: <4B97F97D.5040904 at oracle.com>
> Content-Type: text/plain; charset=ISO-8859-1;
> format=flowed
> 
> Were the first set of messages on all nodes? On that node
> atleast
> the o2hb node down event fired. It should have fired on all
> nodes.
> This is the dlm eviction message.
> 
> If they all fired, then look for a node to have a message
> that
> reads "Node x is the Recovery Master for the Dead Node y".
> 
> That shows a node was elected to run the dlm recovery. That
> has
> to complete before the journal is replayed. "Recovering
> node x
> from slot y on device".
> 
> I did a quick scan of the patches since 2.6.28. They are a
> lot
> of them. I did not see any fixes in this area.
> git log --oneline --no-merges v2.6.28..HEAD fs/ocfs2
> 
> Sunil
> 
> Gabriele Alberti wrote:
> > Hello,
> > I have a weird behavior in my ocfs2 cluster. I have
> few nodes
> > accessing a shared device, and everything works fine
> as long as one
> > node crashes for whatever reason. When this happens,
> the ocfs2
> > filesystem hangs and it seems impossible to access it
> until I dont
> > bring down all the nodes but one. I have a (commented)
> log of what
> > happened few nights ago, when a node shut itself down
> because of a fan
> > failure. In order to avoid uncontrolled re-joins to
> the cluster my
> > nodes stay off when they go off for a reason.
> >
> > The log is available at http://pastebin.com/gDg577hH
> >
> > Is this the expected behavior? I thought when one node
> fails, the rest
> > of the world should go on working after the timeout (I
> used default
> > values for timeouts).
> >
> > Here are my versions
> >
> > # modinfo ocfs2
> > filename:   
>    /lib/modules/2.6.28.9/kernel/fs/ocfs2/ocfs2.ko
> > author:         Oracle
> > license:        GPL
> > description:    OCFS2 1.5.0
> > version:        1.5.0
> > vermagic:       2.6.28.9 SMP
> mod_unload modversions PENTIUM4 4KSTACKS
> > depends:       
> jbd2,ocfs2_stackglue,ocfs2_nodemanager
> > srcversion: 
>    FEA8BA1FCC9D61DAAF32077
> >
> > Best regards,
> >
> > G.
> 
> 
> 
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> End of Ocfs2-users Digest, Vol 75, Issue 10
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