[Gluster-users] Gluster on ZFS: cannot open empty files

[Anand Patil]

Sorry, I left out an important fact. That issue happened when the zpool
consisted of four block devices.

I just tried creating four zpools of one block device each, and made a
single gluster volume out of the four zpools, and haven't seen the problem
so far.

Anand


On Tue, Oct 1, 2013 at 1:18 PM, Anand Patil <anand.prabhakar.patil at gmail.com
> wrote:

> Hi everyone,
>
> I've got glusterfs-server/glusterfs-client
> version 3.4.0final-ubuntu1~precise1 (from the semiosis PPA) running on
> Ubuntu 13.04. I'm trying to share ZFS (ZFS on Linux  0.6.2-1~precise from
> the zfs-stable PPA) using GlusterFS. When creating the ZFS filesystem and
> the Gluster volume, I accepted all the defaults and then:
>
> - I enabled deduplication for the ZFS filesystem (zfs set dedup=on)
> - I enabled quota for the Gluster volume (gluster volume quota
> <volume-name> enable)
>
> On the server, I can cd into the ZFS filesystem and open empty files
> without problems. However, when I mount the Gluster volume on a remote
> machine, I find that I can't open any empty files. Errors show up in the
> Gluster log, and they are (I inserted the <volume-name> in place of the
> volume's name):
>
> [2013-10-01 19:32:52.125149] W [page.c:991:__ioc_page_error]
> 0-<volume-name>-io-cache: page error for page = 0x7f944ba2e4a0 & waitq =
> 0x7f944ba2ba10
> [2013-10-01 19:32:52.125180] W [fuse-bridge.c:2049:fuse_readv_cbk]
> 0-glusterfs-fuse: 2278: READ => -1 (Operation not permitted)
>
> Any ideas about how I can fix this?
>
> Thanks,
> Anand
>
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