Hello List,
I wanted to outline our proposed configuration and hope for some feedback
from the list on whether the LNET config is sound.
We're planning a site-wide (HPC clusters) Lustre filesystem at NYU to be
installed in the next few weeks. Lustre version 1.8.1.
The MDS, OSS, and routers will b
On 13-Oct-09, at 04:58, Brian J. Murrell wrote:
> On Mon, 2009-10-12 at 17:06 -0700, David Simas wrote:
>> During this operation, we notice the value of "buffers"
>> reported in '/proc/meminfo' on the OSSs involved increasing
>> monotonically
>> until it apparently take up all the system's memory
Hello Brian,
Thanks for your e-mail. I believe our situation may be the later
case---I need find out.
Regards,
Yujun
On Tue, 13 Oct 2009 lustre-discuss-requ...@lists.lustre.org wrote:
>5. Re: mounting lustre client behind firewall (Brian J. Murrell)
> Message: 5
> Date: Tue, 13 Oct 2009 12:0
On Sun, 2009-10-11 at 19:05 +0200, Bernd Schubert wrote:
>
Bernd,
> I already did this several times, here are the steps I so far used:
>
> 1) Remove MGS from MDT-device
>
> tunefs.lustre --nogms /dec/mdt_device
>
> 2) Create new MGS
>
> mkfs.lustre --mgs /dev/mgs_device
>
> 3) Make sure OS
On Monday 12 October 2009, Michael Schwartzkopff wrote:
> Am Montag, 12. Oktober 2009 15:54:04 schrieb Vadym:
> > Hello
> > I'm do a schema of mail service so I have only one question:
> > Can Lustre provide me full automatic failover solution?
>
> No. See the lustre manual for this. You need a cl
On Saturday 10 October 2009, Andreas Dilger wrote:
> On 8-Oct-09, at 22:28, Lundgren, Andrew wrote:
> > Is there a way to set the lru_size to a fixed value and have it stay
> > that way across mounts?
> >
> > I know it can be set using:
> > $ lctl set_param ldlm.namespaces.*osc*.lru_size=$((NR_CPU*
On 13-Oct-09, at 06:33, Wojciech Turek wrote:
> I am running lfscks on my file systems right now. Once they finished
> I would like to re run lfscks to make sure that all problems were
> cleaned. Do you know if I need to rebuild mdsdb and ostdbs for the
> second lfsck run? I can see that lfsc
On Tue, 2009-10-13 at 11:53 -0400, Yujun Wu wrote:
> Hello Aaron,
>
> Thanks for your info. Does this mean the client side have to open
> both inbound and outbound port on 988 all the way between servers
> and clients?
No. As Aaron said, the connection would be initiated from a source port
< 102
Hello Aaron,
Thanks for your info. Does this mean the client side have to open
both inbound and outbound port on 988 all the way between servers
and clients?
Regards,
Yujun
On Mon, 12 Oct 2009, Aaron Knister wrote:
> I believe port tcp port 988 is used by default for the tcp lnet
> module. I'm
I've put together a small test Lustre system which is giving
confusing (at least to me) results. All nodes are running fully
patched 64bit RHEL 5.3 with the premade Lustre 1.8.1 x86_64 RPMs.
The nodes are a bit cobbled together from what I had handy.
One MDS: 8 core 2.5 GHz nihalem 8GB RA
We face this problem on the Lustre servers on our cluster with GigE
network. We found that increasing the following value in
/etc/sysctl.conf forces the kswapd to kick in a lot earlier and prevent
the scenario that you are talking about. Our servers have only 8GB
memory, you might want to bump
Thanks Bernd.
For a work around, we are doing a cron every 5 minutes for now to force it down
after unmount/remounts.
--
Andrew
-Original Message-
From: Bernd Schubert [mailto:bs_li...@aakef.fastmail.fm]
Sent: Tuesday, October 13, 2009 4:15 AM
To: Andreas Dilger
Cc: Lundgren, Andrew; l
This sounds very much like a problem we saw before we changed the lru_size to a
fixed size from dynamic.
--
Andrew
-Original Message-
From: lustre-discuss-boun...@lists.lustre.org
[mailto:lustre-discuss-boun...@lists.lustre.org] On Behalf Of David Simas
Sent: Monday, October 12, 2009 6:
I am running lfscks on my file systems right now. Once they finished I would
like to re run lfscks to make sure that all problems were cleaned. Do you
know if I need to rebuild mdsdb and ostdbs for the second lfsck run? I can
see that lfsck change timestamps on db files so maybe I don't have to
reb
On Wed, 2009-10-07 at 14:51 +0200, Guillaume Demillecamps wrote:
> Hello all,
Hi,
> kernel: LustreError: 8578:0:(filter_io_26.c:402:filter_do_bio()) Can't
> allocate bio 256*4 = 1024 pages
>
> Any idea where to look at ?
Memory.
b.
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On Mon, 2009-10-12 at 17:06 -0700, David Simas wrote:
> Hello,
Hi,
> During this operation, we notice the value of "buffers"
> reported in '/proc/meminfo' on the OSSs involved increasing monotonically
> until it apparently take up all the system's memory - 32 GB.
This would likely be OSS read ca
On Tuesday 13 October 2009, Andreas Dilger wrote:
> On 12-Oct-09, at 12:11, Lundgren, Andrew wrote:
> > I have tried using:
> >
> > # lctl conf_param content-MDT.osc.lru_size=800
> >
> > Seen this in the log:
> > Oct 12 18:35:36 abcd0202 kernel: Lustre: Modifying parameter content-
> > MDT-
On 12-Oct-09, at 12:11, Lundgren, Andrew wrote:
> I have tried using:
>
> # lctl conf_param content-MDT.osc.lru_size=800
>
> Seen this in the log:
> Oct 12 18:35:36 abcd0202 kernel: Lustre: Modifying parameter content-
> MDT-mdc.osc.lru_size in log content-client
> Oct 12 18:35:36 abcd0202
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