[Lustre-discuss] ost_write operation failed with -28 in 1.8.5 lustre client
Rajendra prasad
rajendra.dn at gmail.com
Tue May 3 20:16:08 PDT 2011
Hi,
Thank you for the info. There are around 600 clients in the setup.
Due to an issue, i had restarted the OSS servers and remounted the OSTs
yesterday.. Post which i am not seeing these errors till now.
However I will upgrade the lustre client version to 1.8.5 in all the
clients.
Regards,
Prasad
On Tue, May 3, 2011 at 1:28 AM, Andreas Dilger <adilger at whamcloud.com>wrote:
> On Apr 29, 2011, at 09:04, Rajendra prasad wrote:
> > I am running lustre servers on 1.8.5 (recently upgraded from 1.8.2).
> Clients are still on 1.8.2 .
> >
> > I am getting the error "ost_write operation failed with -28" in the
> clients. Due to this i am getting error message as "No space left on the
> device" oftenly. As per lfs df -h output all the OSTs are occupied around
> 55% only.
> >
> > lfs df -h
> > UUID bytes Used Available Use% Mounted on
> > lustre-MDT0000_UUID 52.3G 4.2G 48.1G 8%
> /opt/lustre[MDT:0]
> > lustre-OST0000_UUID 442.9G 245.6G 197.3G 55%
> /opt/lustre[OST:0]
> > lustre-OST0001_UUID 442.9G 238.7G 204.3G 53%
> /opt/lustre[OST:1]
> > lustre-OST0002_UUID 442.9G 243.2G 199.7G 54%
> /opt/lustre[OST:2]
> > lustre-OST0003_UUID 442.9G 236.5G 206.5G 53%
> /opt/lustre[OST:3]
> > lustre-OST0004_UUID 442.9G 234.8G 208.1G 53%
> /opt/lustre[OST:4]
> > lustre-OST0005_UUID 442.9G 239.7G 203.3G 54%
> /opt/lustre[OST:5]
> > lustre-OST0006_UUID 442.9G 237.2G 205.7G 53%
> /opt/lustre[OST:6]
> > lustre-OST0007_UUID 442.9G 227.9G 215.0G 51%
> /opt/lustre[OST:7]
> > filesystem summary: 3.5T 1.9T 1.6T 53% /opt/lustre
> > As per the below bugzilla, i have upgraded one of the lustre client
> verstion to 1.8.5 but still the issue persist in that client.
> >
> > https://bugzilla.lustre.org/show_bug.cgi?id=22755
> >
> > Lustre clients are on Suse linux 10.1 . In order to install lustre client
> packages of 1.8.5, i have upgraded the Suse kernel also.
>
> How many clients do you have? I don't think this is an inode problem,
> since it wouldn't fail with ENOSPC during ost_write. There is also a
> problem with clients holding all of the space in grants (about
> 32MB/client/OST) as described in the above bug. However, unless you have
> upgraded ALL of the clients to 1.8.5, that problem will not be fixed.
>
> Cheers, Andreas
> --
> Andreas Dilger
> Principal Engineer
> Whamcloud, Inc.
>
>
>
>
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