Re: unstable branch: ls -l hang after write by 64 clients

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On Wed, 25 May 2011, Andre Noll wrote:
> On Wed, May 25, 09:16, Sage Weil wrote:
> > > It's trivial to reproduce: Executing "ls -l" on one client while
> > > another client is writing causes the ls command to hang indefinitely.
> > 
> > This was recently fixed in the master branch, commit
> > ee7fa813ef29890557f0b03bd3950d422484215d.  It hasn't made it into any  
> > releases yet.  I'll cherry-pick it into stable for 0.28.2.
> > 
> > Please let me know if you continue to see this problem with that fix in 
> > place.
> 
> Nope. I'm now running the ceph master branch (fe955881) on all nodes
> but the problem remains. Even after stopping the writer, the "ls -l"
> hangs. Linux kernel version is plain 2.6.38.7 everywhere and the ceph
> setup is fairly simple: 6 cosds, one cmon and one cmds.

I created a new bug (http://tracker.newdream.net/issues/1110) for this. 
Can you generate an mds log for this and attach it to the bug?

	debug mds = 20
	debug ms = 1

in the [mds] section and restart, or if the cluster is already up just

	ceph mds tell 0 injectargs '--debug-mds 20 --debug-ms 1'

and then reproduce the problem.  Should be at /var/log/ceph/mds.a.log or 
similar.

Thanks!
sage
--
To unsubscribe from this list: send the line "unsubscribe ceph-devel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html


[Index of Archives]     [CEPH Users]     [Ceph Large]     [Information on CEPH]     [Linux BTRFS]     [Linux USB Devel]     [Video for Linux]     [Linux Audio Users]     [Yosemite News]     [Linux Kernel]     [Linux SCSI]
  Powered by Linux