[Gluster-users] Quick question regarding xfs_repair

[Terry Haley]

Just to clarify. 

I have a shell open that's currently hung doing an umount. So start another
shell and do the lazy umount?

If that hangs as well, then reboot?


Thanks

-----Original Message-----
From: Joe Landman [mailto:landman at scalableinformatics.com] 
Sent: Monday, March 14, 2011 1:28 PM
To: Terry Haley
Cc: gluster-users at gluster.org
Subject: Re: [Gluster-users] Quick question regarding xfs_repair

On 03/14/2011 01:22 PM, Terry Haley wrote:

> At this point, all I can see in my future is trying to reboot without
> remounting and do the repair, which seems like a long shot?
>
> Suggestions?

Yeah, looks like it couldn't write to the log, so it marked the file 
system as down.  Believe it or not, this may have saved you ...

Do a

	umount -l /xfs/mount/point

and wait a bit.  It will do the umount in the background.  Put a 
"noauto" option on this in the /etc/fstab just in case  you need to reboot.

BTW:  Which kernel is this?  The stock Centos kernels xfs support comes 
from centosplus.  Support for xfs isn't bad, but in general, the 
RHEL/Centos kernels aren't (in our experience) stable against very heavy 
loads, nor are they terribly good with xfs.  5.5 is better.

Regards

Joe


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