[Lustre-discuss] lustre 1.6.5.1 panic on failover

[Klaus Steden]

Hi Brock,

I've been using Sun X2200s with Lustre in a similar configuration (IPMI,
STONITH, Linux-HA, FC storage) and haven't had any issues like this
(although I would typically panic the primary node during testing using
Sysrq) ... is the behaviour consistent?

Klaus

On 7/31/08 1:57 PM, "Brock Palen" <brockp at umich.edu>did etch on stone
tablets:

> I have two machines I am setting up as my first mds failover pair.
> 
> The two sun x4100's  are connected to a FC disk array.  I have set up
> heartbeat with IPMI for STONITH.
> 
> Problem is when I run a test on the host that currently has the mds/
> mgs mounted  'killall -9 heartbeat'  I see the IPMI shutdown and when
> the second 4100 tries to mount the filesystem it does a kernel panic.
> 
> Has anyone else seen this behavior?  Is there something I am running
> into?  If I do a 'hb_takelover' or shutdown heartbeat cleanly all is
> well.  Only if I simulate heartbeat failing does this happen.  Note I
> have not tired yanking power yet, but I want to simulate a MDS in a
> semi dead state and ran into this.
> 
> 
> Brock Palen
> www.umich.edu/~brockp
> Center for Advanced Computing
> brockp at umich.edu
> (734)936-1985
> 
> 
> 
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