[Gluster-users] rm -rf errors

[Liam Slusser]

You should try upgrading to the 2.0.0 release and try again.  They fixed all
sorts of bugs.
liam

On Thu, May 7, 2009 at 8:21 AM, Sacerdoti, Federico <
Federico.Sacerdoti at deshawresearch.com> wrote:

> Hello,
>
> I am evaluating glusterfs and have seen some strange behavior with
> remove. I have gluster/2.0.0rc4 setup on 10 linux nodes connected with
> GigE. The config is Nufa/fuse with one storage brick per server, as seen
> in the attached nufa.vol config file, which I use for both clients and
> servers.
>
> My experiment is to launch 10 parallel writers, each of whom writes
> 32GiB worth of data in small files (2MB) to a shared gluster-fuse
> mounted filesystem. The files are named uniquely per client, so each
> file is only written once. This worked well, and I am seeing performance
> close to that of native disk, even with 8-writers per node.
>
> However when I do a parallel "rm -rf writedir/" on the 10 nodes, where
> writedir is the directory written in by the parallel writers described
> above, I see strange effects. There are 69,000 UNLINK errors in the
> glusterfsd.log of one server, in the form shown below. This alone is not
> surprising as the operation is ocurring in parallel. However the remove
> took much longer than expected, 92min, and more surprisingly the rm
> command exited 0 but files remained in the writedir!
>
> I ran rm -rf writedir from a single client, and it too exited 0 but left
> the writedir non-empty. Is this expected?
>
> Thanks,
> Federico
>
> --From glusterfsd.log--
> 2009-05-04 11:35:15 E [fuse-bridge.c:964:fuse_unlink_cbk]
> glusterfs-fuse: 5764889: UNLINK() /write.2MB.runid1.p1/5 => -1 (No such
> file or directory)
> 2009-05-04 11:35:15 E [dht-common.c:1294:dht_err_cbk] nufa: subvolume
> drdan0192 returned -1 (No such file or directory)
> 2009-05-04 11:35:15 E [fuse-bridge.c:964:fuse_unlink_cbk]
> glusterfs-fuse: 5764894: UNLINK() /write.2MB.runid1.p1/51 => -1 (No such
> file or directory)
> --end--
>  <<nufa.vol>>
>
> _______________________________________________
> Gluster-users mailing list
> Gluster-users at gluster.org
> http://zresearch.com/cgi-bin/mailman/listinfo/gluster-users
>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://supercolony.gluster.org/pipermail/gluster-users/attachments/20090507/270e8274/attachment.html>