[Lustre-discuss] lustre 1.6.5.1 panic on failover

Brock Palen brockp at umich.edu
Thu Jul 31 13:57:37 PDT 2008


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






More information about the lustre-discuss mailing list