[Gluster-users] Data migration and rebalance

Jonathan Lefman jonathan.lefman at essess.com
Fri Nov 23 18:10:32 UTC 2012

Volume type:

non-replicated, 29 nodes, xfs formats

Number of files/directories:

There are about 5000-10000 directories

Average size of files:

There are two distributions of files:  a vast majority of files is around
200-300 kilobytes, with about 1000-fold fewer files with a size around 1

Average number of files per directory:

Around 1800 files per directory

glusterd log below:

When trying

sudo gluster volume rebalance essess_data status


sudo gluster volume status myvol
operation failed

Log for this time from /var/log/glusterfs/etc-glusterfs-glusterd.vol.log:

[2012-11-23 13:05:00.489567] E
[glusterd-handler.c:458:glusterd_op_txn_begin] 0-management: Unable to
acquire local lock, ret: -1
[2012-11-23 13:07:09.102007] I
[glusterd-handler.c:2670:glusterd_handle_status_volume] 0-management:
Received status volume req for volume essess_data
[2012-11-23 13:07:09.102056] E [glusterd-utils.c:277:glusterd_lock]
0-glusterd: Unable to get lock for uuid:
ee33fd05-135e-40e7-a157-3c1e0b9be073, lock held by:
[2012-11-23 13:07:09.102073] E
[glusterd-handler.c:458:glusterd_op_txn_begin] 0-management: Unable to
acquire local lock, ret: -1

On Fri, Nov 23, 2012 at 12:58 PM, Vijay Bellur <vbellur at redhat.com> wrote:

> On 11/23/2012 11:14 PM, Jonathan Lefman wrote:
>> The rebalance command has run for quite a while.  Now when I issue the
>> rebalance status command,
>> sudo gluster volume rebalance myvol status
>> I get nothing back; just a return to the command prompt.  Any ideas of
>> what is going on?
> A few questions:
> - What is your volume type?
> - How many files and directories do you have in your volume?
> - What is the average size of files?
> - What is the average number of files per directory?
> - Can you please share glusterd logs from the time when the command
> returns without displaying any output?
> Thanks,
> Vijay

*Jonathan Lefman, Ph.D.*
*ē**ssess, Inc.*
25 Thomson Place, Suite 460, Boston, MA 02210
o: 415-361-5488 x121 | e: jonathan.lefman at essess.com | *www.essess.com*
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://supercolony.gluster.org/pipermail/gluster-users/attachments/20121123/e946f484/attachment.html>

More information about the Gluster-users mailing list